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Document And Entity Information	12 Months Ended
Document And Entity Information	Dec. 31, 2016 shares
Document Information [Line Items]
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Entity Registrant Name	ReneSola Ltd
Entity Central Index Key	0001417892
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	200,538,902

CONSOLIDATED BALANCE SHEETS	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Current assets:
Cash and cash equivalents	$ 37,336,382	$ 38,045,225
Restricted cash	95,865,515	140,337,531
Accounts receivable, net of allowances for doubtful accounts of $5,152,466 and $4,081,503 as of December 31,2015 and 2016, respectively	72,818,682	117,552,365
Notes receivable	43,858,319	43,613,485
Inventories	143,976,055	193,171,119
Advances to suppliers-current, net	14,943,450	18,479,686
Amounts due from related parties	13,065,625	110,952
Value added tax recoverable	3,259,607	24,525,347
Income tax recoverable	1,080,878	3,609,414
Prepaid expenses and other current assets	22,838,138	27,805,783
Project assets current	48,177,416	20,213,622
Assets held-for-sale	7,558,218	4,240,878
Derivative assets	2,715,736	56,253
Deferred tax assets-current, net		5,988,646
Total current assets	507,494,021	637,750,306
Property, plant and equipment, net	491,255,212	630,462,070
Prepaid land use right, net	31,850,188	37,239,795
Deferred tax assets-non-current, net	15,538,942	10,237,718
Advances for purchases of property, plant and equipment, net	845,907	381,958
Project assets non-current	6,709,991
Other non-current assets	18,336,528	9,373,292
Deferred project costs	16,374,899	20,874,446
Total assets	1,088,405,688	1,346,319,585
Current liabilities:
Short-term borrowings	595,433,960	668,787,546
Convertible bond payable, net		26,145,000
Accounts payable	223,302,995	300,176,417
Advances from customers-current	21,997,987	28,101,183
Amounts due to related parties	1,257,367	2,676,614
Other current liabilities	62,124,942	77,238,265
Income tax payable	314,870	129,845
Derivative liabilities		29,519
Warrant liability		577,500
Total current liabilities	904,432,121	1,103,861,889
Long-term borrowings	28,835,700	38,776,693
Warranty	35,058,973	36,023,946
Deferred revenue	32,242,995	32,376,386
Deferred subsidies	20,824,155	23,241,899
Other long-term liabilities	865,964	104,860
Total liabilities	1,022,259,908	1,234,385,673
Commitments and contingencies (see Note 18)
Shareholders' equity
Common shares (500,000,000 shares; no par value shares authorized at December 31, 2015 and 2016; 203,331,288 shares issued and 203,205,688 shares outstanding at December 31, 2015; 202,478,702 shares issued and 200,538,902 shares outstanding at December 31, 2016)	477,171,487	477,964,702
Treasury stock	(513,137)
Additional paid-in capital	8,229,330	7,669,350
Accumulated deficit	(469,975,148)	(435,276,897)
Accumulated other comprehensive income	51,233,248	61,576,757
Total equity	66,145,780	111,933,912
Total liabilities and shareholders' equity	$ 1,088,405,688	$ 1,346,319,585

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Accounts receivable, allowances for doubtful accounts (in dollars)	$ 4,081,503	$ 5,152,466
Common shares, par value (in dollars per share)	$ 0	$ 0
Common shares, shares authorized	500,000,000	500,000,000
Common shares, shares issued	202,478,702	203,331,288
Common shares, shares outstanding	200,538,902	203,205,688

CONSOLIDATED INCOME STATEMENTS - USD ($)	12 Months Ended
CONSOLIDATED INCOME STATEMENTS - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net revenues:
Product sales	$ 911,552,022	$ 1,270,558,771	$ 1,552,893,052
Product sales - related party	40,171,544	53,538	2,898,698
Processing services	18,284,267	11,472,675	8,603,976
Total net revenues	929,836,289	1,282,031,446	1,561,497,028
Cost of revenues:
Product sales	807,947,537	1,086,790,937	1,346,151,113
Product sales - related party	37,038,840	54,756	2,733,991
Processing services	12,392,670	7,366,665	6,062,630
Total cost of revenues	820,340,207	1,094,157,602	1,352,213,743
Gross profit	109,496,082	187,873,844	209,283,285
Operating expenses (income):
Sales and marketing	47,463,930	72,294,911	93,067,159
General and administrative	51,458,708	59,290,266	67,293,891
Research and development	27,286,652	43,905,312	52,575,143
Other operating income	(6,265,543)	(16,919,975)	(11,870,403)
Impairment of long-lived assets	4,624,979
Total operating expenses	124,568,726	158,570,514	201,065,790
Income (loss) from operations	(15,072,644)	29,303,330	8,217,495
Non-operating expenses (income):
Interest income	(2,353,343)	(2,875,075)	(5,009,687)
Interest expense	33,939,704	43,417,785	49,015,802
Foreign exchange losses (gains)	(8,872,806)	2,136,980	27,009,411
Losses (gains) on derivatives, net	(4,591,991)	6,030,915	(6,057,941)
Gain on disposal of subsidiaries			(8,253,229)
Gains on repurchase of convertible notes	(212,056)	(13,693,269)	(7,048,188)
Fair value change of warrant liability	(577,500)	(1,312,500)	(7,455,000)
Loss before income tax, non-controlling interests	(32,404,652)	(4,401,506)	(33,983,673)
Income tax benefit (expense)	(2,293,599)	(673,616)	349,880
Net loss	(34,698,251)	(5,075,122)	(33,633,793)
Less: net loss attributed to non-controlling interests			(3,772)
Net loss attributed to ReneSola Ltd	$ (34,698,251)	$ (5,075,122)	$ (33,630,021)
Loss per share
Basic (in dollars per share)	$ (0.17)	$ (0.02)	$ (0.17)
Diluted (in dollars per share)	$ (0.17)	$ (0.02)	$ (0.17)
Weighted average number of shares used in computing loss per share
Basic (in shares)	202,229,767	204,085,041	203,550,049
Diluted (in shares)	202,229,767	204,085,041	203,550,049

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)	12 Months Ended
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net loss	$ (34,698,251)	$ (5,075,122)	$ (33,633,793)
Other comprehensive loss, net of tax of nil:
Foreign currency translation adjustment	(10,343,509)	(19,503,275)	(2,533,628)
Other comprehensive loss	(10,343,509)	(19,503,275)	(2,533,628)
Comprehensive loss	(45,041,760)	(24,578,397)	(36,167,421)
Less: comprehensive loss attributable to non-controlling interest			(3,772)
Comprehensive loss attributable to ReneSola Ltd	$ (45,041,760)	$ (24,578,397)	$ (36,163,649)

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other comprehensive income, tax

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)	Total	Common shares [Member]	Treasury stock [Member]	Additional Paid-in Capital [Member]	Retained earnings (accumulated deficit) [Member]	Accumulated other comprehensive income [Member]	Equity (Deficit) attributable to ReneSola Ltd [Member]	Noncontrolling interest [Member]
Balance at Dec. 31, 2013	$ 169,016,544	$ 475,816,214		$ 5,949,778	$ (396,571,754)	$ 83,613,660	$ 168,807,898	$ 208,646
Balance (in shares) at Dec. 31, 2013		203,367,464
Increase (Decrease) in Stockholders' Equity
Net loss	(33,633,793)				(33,630,021)		(33,630,021)	(3,772)
Other comprehensive loss, net of tax	(2,533,628)					(2,533,628)	(2,533,628)
Share-based compensation	2,240,126			2,240,126			2,240,126
Share exercised by employee	271,944	$ 949,674		(677,730)			271,944
Share exercised by employee (in shares)		410,000
Repurchase from non-controlling interest	(204,874)							(204,874)
Balance at Dec. 31, 2014	135,156,319	$ 476,765,888		7,512,174	(430,201,775)	81,080,032	135,156,319
Balance (in shares) at Dec. 31, 2014		203,777,464
Increase (Decrease) in Stockholders' Equity
Net loss	(5,075,122)				(5,075,122)		(5,075,122)
Other comprehensive loss, net of tax	(19,503,275)					(19,503,275)	(19,503,275)
Share-based compensation	1,527,494			1,527,494			1,527,494
Share exercised by employee	640,680	$ 2,010,998		(1,370,318)			640,680
Share exercised by employee (in shares)		1,043,000
Repurchase of common shares	(812,184)		(812,184)				(812,184)
Repurchase of common shares (in shares)		(1,614,776)
Cancellation of ADSs		$ (812,184)	812,184
Cancellation of ADSs (in shares)
Balance at Dec. 31, 2015	111,933,912	$ 477,964,702		7,669,350	(435,276,897)	61,576,757	111,933,912
Balance (in shares) at Dec. 31, 2015		203,205,688
Increase (Decrease) in Stockholders' Equity
Net loss	(34,698,251)				(34,698,251)		(34,698,251)
Other comprehensive loss, net of tax	(10,343,509)					(10,343,509)	(10,343,509)
Share-based compensation	746,980			746,980			746,980
Share exercised by employee		$ 187,000		(187,000)
Share exercised by employee (in shares)		137,500
Repurchase of common shares	(1,493,352)		(1,493,352)				(1,493,352)
Repurchase of common shares (in shares)		(2,804,286)
Cancellation of ADSs		$ (980,215)	980,215
Cancellation of ADSs (in shares)
Balance at Dec. 31, 2016	$ 66,145,780	$ 477,171,487	$ (513,137)	$ 8,229,330	$ (469,975,148)	$ 51,233,248	$ 66,145,780
Balance (in shares) at Dec. 31, 2016		200,538,902

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities:
Net loss	$ (34,698,251)	$ (5,075,122)	$ (33,633,793)
Adjustment to reconcile net loss to net cash provided by (used in) operating activities:
Impairment of long-lived assets	4,624,979
Inventory write-down	1,963,411	619,858	808,031
Depreciation	83,205,965	90,112,980	90,223,634
Amortization of deferred convertible notes issuance costs and premium	32,935	764,527	933,152
Allowance of doubtful receivables, advance to suppliers and prepayment for purchases of property, plant and equipment	1,993,446	117,520	5,710,167
Gains on derivatives	(4,591,991)	6,030,915	(6,057,941)
Share-based compensation	746,980	1,527,494	2,240,126
Losses (gains) on disposal of long-lived assets	(1,012,515)	4,658,023	1,486,466
Gain on disposal of land use right			(64,283)
Fair value change of warrant liability	(577,500)	(1,312,500)	(7,455,000)
Gain from settlement of certain payable		(9,125,954)
Gains on repurchase of convertible notes	(212,056)	(13,693,269)	(7,048,188)
Gains on disposal of solar project	(2,526,572)		(8,253,229)
Changes in assets and liabilities:
Accounts receivable	30,692,217	(28,886,971)	27,669,692
Notes receivable	(9,322,150)	(29,876,409)	17,940,468
Inventories	10,470,840	121,765,462	(19,210,219)
Advances to suppliers	860,182	8,282,514	(8,237,614)
Amounts due to/from related parties	(14,648,405)	(432,998)	(1,508,056)
Value added tax recoverable	20,643,679	4,279,053	(2,370,868)
Prepaid expenses and other current assets	(7,879,348)	15,169,401	40,319,263
Prepaid land use right	2,001,755	694,895	512,595
Accounts payable	(52,547,492)	(158,969,132)	(174,893,352)
Advances from customers	(1,909,153)	(58,666,118)	(15,231,114)
Income tax payables	2,686,038	(2,423,668)	(3,795,493)
Other current liabilities	117,836	(2,951,445)	9,224,022
Deferred revenue		32,376,386
Other non-current assets			(158,952)
Other long-term liabilities	(55,527)	(1,728,349)	(2,874,319)
Warranty	1,344,475	5,759,388	8,043,681
Deferred tax assets	1,447,306	2,537,916	(2,151,417)
Project assets and deferred project costs	(5,317,205)	20,655,210	(33,856,418)
Net cash provided by (used in) operating activities	27,533,879	2,209,607	(121,688,959)
Investing activities:
Purchases of property, plant and equipment	(9,964,203)	(14,437,852)	(51,813,162)
Advances for purchases of property, plant and equipment	(1,661,101)	(2,383,131)	(2,699,262)
Cash received from government subsidy			12,218,438
Proceeds from disposal of property, plant and equipment	12,029,675	5,751,414	93,411
Proceeds from disposal of solar project	3,190,678		18,679,663
Changes in restricted cash	36,675,009	(24,503,612)	134,584,395
Increase in investments		(83,150)
Net cash received (paid) on settlement of derivatives	1,889,873	(4,371,142)	4,397,504
Net cash provided by (used in) investing activities	42,159,931	(40,027,473)	115,460,987
Financing activities:
Proceeds from bank borrowings	1,013,574,352	1,100,033,042	1,063,769,258
Proceeds from related parties		3,000,000	4,000,000
Repayment to related parties		(7,000,000)
Repayment of bank borrowings	(1,048,523,495)	(1,052,642,690)	(1,045,904,061)
Proceeds from exercise of stock options		640,680	993,329
Repurchase of convertible notes	(25,931,219)	(54,376,600)	(9,809,860)
Cash paid for ADSs repurchase	(1,493,352)	(812,183)
Net cash provided by (used in) financing activities	(62,373,714)	(11,157,751)	13,048,666
Effect of exchange rate changes	(8,028,939)	(12,826,762)	6,254,232
Net increase (decrease) in cash and cash equivalents	(708,843)	(61,802,379)	13,074,926
Cash and cash equivalents, beginning of year	38,045,225	99,847,604	86,772,678
Cash and cash equivalents, end of year	37,336,382	38,045,225	99,847,604
Supplemental schedule of non-cash transactions
Project assets reclassified to property, plant and equipment, net			27,127,591
Increases in payables for purchase of property, plant and equipment	11,569,972	37,754,500	45,377,459
Banknotes, included in notes receivable, used to purchase equipment	9,077,316	24,984,882	13,321,415
Supplemental disclosure of cash flow information
Interest paid	34,630,991	44,833,732	42,309,295
Income tax paid	$ 858,616	$ 2,395,594	$ 5,866,131

ORGANIZATION AND NATURE OF OPERATIONS

12 Months Ended

Dec. 31, 2016

ORGANIZATION AND NATURE OF OPERATIONS [Abstract]

ORGANIZATION AND NATURE OF OPERATIONS

1. ORGANIZATION AND NATURE OF OPERATIONS

ReneSola Ltd was incorporated in the British Virgin Island on March 17, 2006. On January 29, 2008, the Company became listed on the New York Stock Exchange (NYSE) in the United States. ReneSola Ltd and its subsidiaries (collectively the “Company”) are engaged in the manufacture and sale of solar power products including virgin polysilicon, monocrystalline and multi crystalline solar wafers and photovoltaic (PV) cells and modules. From 2012, the Company began entering into arrangements to develop commercial solar power projects, or project assets, which consists primarily of solar power project development, engineering, procurement and construction ("EPC") services.

The following table lists major subsidiaries of the Company as of December 31, 2016:

Subsidiaries

Date of

acquisition

Date of

incorporation

Place of

incorporation

Date of

commencement

Percentage of

ownership

ReneSola Zhejiang Ltd.
formerly known as ZhejiangYuhui Solar Energy Source Co., Ltd. (“ReneSola Zhejiang”)

N/A

August 7, 2003

People’s Republic of China (“PRC”)

July, 2005

100

ReneSola America Inc.
(“ReneSola America”)

N/A

November 12, 2006

United States of America

November, 2006

100

ReneSola Singapore Pte Ltd.
(“ReneSola Singapore”)

N/A

March 28, 2007

Singapore

May, 2007

100

Sichuan ReneSola Silicon Material Co., Ltd.
(“Sichuan ReneSola”)

N/A

August 25, 2007

PRC

July, 2009

100

ReneSola Jiangsu Ltd.
(“ReneSola Jiangsu”)

May 31, 2009

November 8, 2005

PRC

May 31, 2009

100

Zhejiang ReneSola System Integration Ltd. Formerly known as Zhejiang ReneSola Photovoltaic Materials Co., Ltd.
(“Zhejiang ReneSola PV Materials”)

N/A

April 30,2010

PRC

January, 2011

100

Sichuan Ruiyu New Materials Technology Co., Ltd.
(“Sichuan Ruiyu”)

N/A

August 24,2010

PRC

July, 2011

100

Sichuan Ruixin Photovoltaic Materials Co., Ltd.
(“Sichuan Ruixin”)

N/A

November 23, 2010

PRC

N/A*

100

Sichuan SiLiDe Composite Materials Co., Ltd.
(“Sichuan SiLiDe”)

N/A

July 11, 2011

PRC

N/A*

100

ReneSola Deutschland GmbH
(“ReneSola Germany”)

N/A

September26, 2011

Germany

August, 2012

100

ReneSola New Energy S.A.R.L
(“ReneSola New Energy”)

N/A

March 28, 2012

Luxemburg

N/A*

100

ReneSola Australia PTY LTD
(“ReneSola Australia”)

N/A

July 30, 2012

Australia

November, 2012

100

ReneSola Japan Ltd.
(“ReneSola Japan”)

N/A

July 9, 2012

Japan

November, 2012

100

LUCAS EST S.R.L
(“LUCAS”).

September 13, 2012

December 17, 2008

Romania

January, 2014

100

ECOSFER ENERGY S.R.L
(“ECOSFER”).

September 26, 2012

November 17, 2011

Romania

January, 2014

100

ReneSola India Private Limited
(“ReneSola India”)

N/A

November 22, 2012

India

December, 2012

100

Lucas Est Korea Co., Ltd
(“Lucas Korea”)

N/A

March 12, 2013

Korea

N/A*

100

Subsidiaries

Date of

acquisition

Date of

incorporation

Place of

incorporation

Date of

commencement

Percentage of

ownership

Ecosfer Energy Korea Co., Ltd
(“Ecosfer Korea”)

N/A

March 12, 2013

Korea

N/A*

100

ReneSola UK Limited
(“ReneSola UK”)

N/A

April 11, 2013

July, 2013

100

ReneSola Shanghai Ltd
(“ReneSola Shanghai”)

N/A

May 30, 2013

PRC

October, 2013

100

ReneSola South Africa Proprietary Limited
(“ReneSola South Africa”)

N/A

July 6, 2013

South Africa

February, 2014

100

ReneSola Panama Inc.
(“ReneSola Panama”)

N/A

December 28, 2013

Panama

March, 2014

100

ReneSola France SAS
(“ReneSola France”)

N/A

February 7, 2014

France

July, 2014

100

ReneSola Italy S.R.L.
(“ReneSola Italy”)

N/A

March 28, 2014

Italy

June, 2014

100

ReneSola(Thailand) Inc.
(“ReneSola Thailand”)

N/A

February 24, 2014

Thailand

February, 2015

100

RENESOLA MEXICO,S,de R.L de C.V.
(“ReneSola Mexico”)

N/A

April 10, 2014

Mexico

July, 2014

100

RENESOLA TURKEY GüNES ENERJISI TEKNOLOJI HIZMETLERI VE TICARET L
(“ReneSola Turkey”)

N/A

April 22, 2014

Turkey

August, 2014

100

PT. ReneSola Clean Energy
(“ReneSola Indonesia”)

N/A

May 14, 2014

Indonesia

February, 2015

100

RENESOLA DO BRASIL COMERCIO E REPRENTACAO LTDA
(“ReneSola Brazil”)

N/A

May 12, 2014

Brazil

December, 2015

100

RENESOLA ENGINEERING INTERNATIONAL GMBH
(“ReneSola Austria”)

N/A

July 22, 2014

Austria

December, 2014

100

RENESOLA Canada Limited
(“ReneSola Canada")

N/A

June 23, 2014

Canada

December, 2014

100

ReneSola Investment Management Ltd
("ReneSola Investment")

N/A

December 2, 2014

British Virgin Island

July, 2015

100

Renesola Energy, INC.

N/A

December 22, 2014

United States

September, 2015

100

Renesola Power, Inc. ("Renesola Power")

N/A

July 23, 2015

United States

September, 2016

100

Renesola UK Rooftop Limited ("Renesola UK Rooftop")

N/A

August 6, 2015

April, 2016

100

Baynergy, LLC ("Baynergy")

N/A

July 8, 2015

United States

April, 2016

100

Renesola Shaoxing Ltd

N/A

March 9, 2016

PRC

April, 2016

100

Renesola Pan'an Ltd

N/A

March 28, 2016

PRC

April, 2016

100

ReneSola Power Holdings LLC.

N/A

May 19, 2016

United States

September, 2016

100

RSE Land Holdings, LLC.

N/A

December 12, 2016

United States

N/A*

100

*: These companies had not commenced operations as of December 31, 2016.

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES

12 Months Ended

Dec. 31, 2016

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES [Abstract]

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES

2. SUMMARY OF PRINCIPAL ACCOUNTING POLICIES

(a) Basis of presentation

The consolidated financial statements have been prepared and presented in accordance with accounting principles generally accepted in the United States of America (“US GAAP”).

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. The realization of assets and the satisfaction of liabilities in the normal course of business are dependent on, among other things, the Company’s ability to generate cash flows from operations, and the Company’s ability to arrange adequate financing arrangements, including the renewal or rollover of its bank borrowings, to support its working capital requirements.

The following factors raise substantial doubt about the Company's ability to continue as a going concern for the foreseeable future.

For the year ended December 31, 2016, the Company incurred a net loss of $34,698,251.

As of December 31, 2016, the Company's current liabilities exceed its current assets by $396,938,100. While the Company had cash and cash equivalents of $37,336,382, it had short-term bank borrowings of $595,433,960 all due within one year.

These factors are mitigated by the following plans and actions:

As of April 2017, the Company has performed a review of its cash flow forecast for the twelve months ending April 2018. The Company believes that its operating cash flow in the forecasted period will be positive. While management believes the forecast is based on reasonable assumptions including: i) despite the possible fluctuation for the raw material prices, the cost to produce modules and wafers is estimated to be marginally lower for the forecasted period ending April 2018, respectively, as a result of continuous cost control effectiveness and technology improvements, and ii) the Company expects the solar project business to generate positive cash inflow in the forecasted period.

While there can be no assurance that the Company will be able to refinance its short-term bank borrowings as they become due, historically, the Company has rolled over or obtained replacement borrowings from existing credit for most of its short-term bank loans upon the maturity date of the loans. As of March 31, 2017, the Company has successfully rolled over $83.7 million short-term borrowings outstanding as of December 31, 2016 and has assumed it will continue to be able to do so for the foreseeable future.

As of March 31, 2017, the Company has unused lines of credit of $61.0 million, of which $59.5 million is related to trade financing. Based on the Company's historical experience, trade facilities funding request will be approved in the normal course provided that the Company submits the required supporting documentation and the amount is within the credit limit granted.

In March 2017, the Company received non-binding letters of commitment from four banks to support their financing in the amount of $389.9 million, of which $288.6 million is related to short term loan and $101.3 million related to trade financing. However, the non-binding letters of commitment from banks do not have a stated term, and may be withdrawn by the banks at their discretion.

Based on the above factors, management believes that adequate sources of liquidity will exist to fund the Company’s working capital and capital expenditures requirements, and to meet its short term debt obligations, other liabilities and commitments as they become due.

(b) Basis of consolidation

The consolidated financial statements include the financial statements of ReneSola Ltd and its subsidiaries. All inter-company transactions, balances and unrealized profits and losses have been eliminated on consolidation.

(c) Fair value measurement

The Company estimates fair value of financial assets and liabilities as the price that would be received from the sales of an asset or paid to transfer a liability (an exit price) on the measurement date in an orderly transaction between market participants.

(d) Use of estimates

The preparation of consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses for the reporting periods presented. Actual results could materially differ from these estimates. Significant accounting estimates are susceptible to changes with the acquisition of the information, which include revenue recognition for sales of solar power projects, allowances for doubtful receivables, advances to suppliers and prepayment for PPE, valuation of deferred tax assets, accruals of warranty expenses, recoverability of the carrying value of long-lived assets and project assets.

(e) Cash and cash equivalents

Cash and cash equivalents represent cash on hand and held with banks, including demand deposits, which are unrestricted as to withdrawal and use, and which have original maturities of three months or less when purchased.

(f) Restricted cash

Restricted cash represents amounts held by banks, which are not available for the Company’s general use, as security for issuance of letters of credit, bank acceptance bills, bank borrowings and bank drafts. Upon maturity of the letters of credit and repayment of bank acceptance bills, bank borrowings and bank drafts which generally occur within one year, the deposits are released by the bank and become available for general use by the Company.

(g) Inventories

Before 2016, inventories were stated at the lower of cost of market. In 2016, the Company adopted ASU 2015-11 prospectively, and inventories are stated at the lower of cost or net realizable value as of December 31, 2016. Cost is determined by the weighted-average method for work-in-process and finished goods and by the first-in-first-out method for raw materials. Inventory costs comprise direct materials, direct labor and those overhead costs that have been incurred in bringing the inventories to their present location and condition.

Adjustments are recorded to write down the cost of obsolete and excess inventory to the estimated net realizable value based on historical and forecast demand. The estimated net realizable value is measured as the estimated selling price of each class of the inventories in the ordinary course of business less estimated costs of completion and disposal and normal profit margin.

The Company outsources portions of its manufacturing process, including cutting ingots into wafers, converting wafers into solar cells and converting solar cells or wafers into modules, to various third-party manufacturers. These outsourcing arrangements may or may not include transfer of title of the raw material inventory (ingots or wafers) sent to the third-party manufacturers.

For the outsourcing arrangements in which title does not transfer, the Company maintains such inventory on the Company’s balance sheet as raw materials inventory while it is in physical possession of the third-party manufacturer. Upon receipt of the processed inventory, it is reclassified as work-in-process inventory and the processing fees paid are capitalized as cost of inventory.

For those outsourcing arrangements in which title (including risk of loss) does transfer to the third-party manufacturer, the Company is contractually obligated to repurchase the processed inventory. To accomplish this, it enters into raw material sales agreements and processed inventory purchase agreements simultaneously with the third-party manufacturer. In such instances, where they are, in substance tolling arrangements, the Company retains the inventory in the consolidated balance sheets while it is in the physical possession of the third-party manufacturer. The cash received from the third-party manufacturer is recorded as a current liability on the balance sheet rather than revenue or deferred revenue. Upon receipt of the processed inventory, it is reclassified from raw materials to work-in-progress inventory and the processing fee paid to the third-party manufacturer is added to inventory cost. Cash payments for outsourcing arrangements which require prepayment for repurchase of the processed inventory are classified as current assets on the balance sheet. If there is no legal right of offset established by these arrangements, the associated assets and liabilities are presented separately on the balance sheet until the processed inventory is returned to the Company.

The Company provides solar wafer processing services on behalf of third parties who have their own polysilicon supplies. Under certain of these solar wafer processing service arrangements, the Company purchases raw materials from a customer and agrees to sell a specified quantity of solar wafers produced from such materials back to the same customer. The quantity of solar wafers sold back to the customer under these processing arrangements is consistent with the amount of raw materials purchased from the customer based on current production conversion rates. The Company records revenue from these processing transactions based on the amount received for solar wafers sold less the amount paid for the raw materials purchased from the customer. The revenue recognized is recorded as solar wafer processing revenue and the production costs incurred related to providing the processing services are recorded as solar wafer processing costs within cost of revenue.

The Company also provides module processing services on behalf of third parties who have their own cell supplies. Under certain of these module processing service arrangements, the Company purchases cells from a customer and agrees to sell a specified quantity of modules produced from such materials back to the same customer. The quantity of modules sold back to the customer under these processing arrangements is consistent with the amount of cells purchased from the customer based on current production conversion rates. The Company records revenue from these processing transactions based on the amount received for modules sold less the amount paid for the cells purchased from the customer. The revenue recognized is recorded as module processing revenue and the production costs incurred related to providing the processing services are recorded as module processing costs within cost of revenue.

On occasion, the Company enters into firm purchase commitments to acquire materials from its suppliers. A firm purchase commitment represents an agreement that specifies all significant terms, including the price and timing of the transactions, and includes a disincentive for nonperformance that is sufficiently large to make performance probable. This disincentive is generally in the form of a “take or pay” provision which requires the Company to pay for committed volumes regardless of whether the Company actually takes possession of the materials. The Company evaluates these agreements whenever market prices decrease such that the commitment price is significantly higher than market, if any, using a lower of cost or net realizable value approach consistent with that used to value inventory (see Note4).

(h) Project assets and deferred project costs

In 2012, the Company began entering into arrangements to develop commercial solar power projects ("project assets") for sale upon their completion. Project assets consist primarily of costs relating to solar power projects in various stages of development that are capitalized prior to entering into a definitive sales agreement for the solar power project. These costs include certain acquisition costs, land costs and costs for developing and constructing a solar power project. Development costs can include legal, consulting, permitting, and other similar costs. Construction costs can include execution of field construction, installation of solar equipment, and solar modules and related equipment. Interest costs incurred on debt during the construction phase are also capitalized within project assets. The Company does not depreciate the project assets, when they are considered held for sale. Any revenue generated from a solar power project connected to the grid would be considered incidental revenue and accounted for as a reduction of the capitalized project costs for development. In addition, the Company presents all expenditures related to the development and construction of project assets as a component of cash flows from operating activities.

During the development phase, these project assets are accounted for in accordance with the recognition, initial measurement and subsequent measurement subtopics of ASC 970- 360, as they are considered in substance real estate. While the solar power projects are in the development phase, they are generally classified as non-current assets, unless it is anticipated that construction will be completed and sale will occur within one year.

Project assets are classified as current assets on the consolidated balance sheets when the criteria in ASC 360-10-45-9 are met. If, not met, the Company reclassifies them to property, plant and equipment, unless the delay in the period required to complete the sale is caused by events or circumstances beyond the Company's control. In 2014, the Company reclassified two project assets in Romania to property, plant and equipment with the carrying value of $27,127,591.

Deferred project costs represents costs that are capitalized as project assets for arrangements that are accounted for as real estate transactions after the Company has entered into a definitive sales arrangement, but before the sale is completed or before all criteria to recognize the sale as revenue is met. The Company classifies deferred project costs as noncurrent if all revenue recognition criteria are not expected within the next 12 months. As of December 31, 2015, the Company entered into a sale transaction for one project asset, which includes contractual provisions which may require the Company to repurchase the project asset under certain circumstances. The repurchase provisions expire on June 30, 2017. In connection with this transaction, the Company has classified the project asset as deferred project costs of $16,374,899.

The Company reviews project assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. The Company considers a project commercially viable or recoverable if it is anticipated to be sold for a profit once it is either fully developed or fully constructed. The Company considers a partially developed or partially constructed project commercially viable or recoverable if the anticipated selling price is higher than the carrying value of the related project assets. The Company examines a number of factors to determine if the project will be recoverable, the most notable of which include whether there are any changes in environmental, ecological, permitting, market pricing or regulatory conditions that impact the project. Such changes could cause the costs of the project to increase or the selling price of the project to decrease. If a project is not considered recoverable, the Company impairs the respective project assets and adjusts the carrying value to the estimated recoverable amount, with the resulting impairment recorded within operations. The Company did not recognize any impairment losses on project assets for the years ended December 31, 2015 and 2016, respectively.

(i) Investments

Investments in marketable equity securities are classified as trading, or available-for-sale. Investments classified as trading are reported at fair value with unrealized gains and losses included in earnings. Investments classified as available-for-sale are reported at fair value with unrealized gains and losses recorded in other comprehensive income. The cost of investments sold is determined by specific identification.

Investments are evaluated for impairment at the end of each period. Unrealized losses are recorded to other expenses when a decline in fair value is determined to be other-than-temporary. The Company reviews several factors to determine whether a loss is other-than-temporary. These factors include, but are not limited to, the: (1) nature of the investment; (2) cause and duration of the impairment; (3) extent to which fair value is less than cost; (4) financial conditions and near term prospects of the issuers; and (5) ability to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value.

The Company routinely reviews available-for-sale securities for other-than-temporary declines in fair value below the cost basis, and when events or changes in circumstances indicate the carrying value of an asset may not be recoverable, the security is written down to fair value. No other-than-temporary impairment loss was recognized during the years ended December 31, 2014, 2015 and 2016.

(j) Advances to suppliers and advances for purchase of property, plant and equipment

In order to secure a stable supply of silicon materials and construction materials, the Company makes advance payments to suppliers for raw material supplies and advances for purchases of long-lived assets which are offset against future deliveries. Advances to suppliers for purchases expected within twelve months as of each balance sheet date are recorded as advances to suppliers in current assets and those associated with purchases expected over longer periods of time are recorded in non-current advance to suppliers. As of December 31, 2015 and 2016, advances to suppliers in current assets were $18,479,686 and $14,943,450, respectively, and non-current advances to suppliers for silicon raw material supplies were both $nil. Advances for property, plant and equipment are recorded in non-current assets and were $381,958 and $845,907 as of December 31, 2015 and 2016, respectively. The Company does not require collateral or other security against its advances to suppliers. As a result, the Company’s claims for such prepayments are unsecured, which exposes the Company to the suppliers’ credit risk. The Company performs ongoing credit evaluations of the financial condition of its material suppliers.

As of December 31, 2015 and 2016, advances to suppliers in excess of 10% of total advances to suppliers are as follows:

	At December 31,
	2015		2016
Supplier A	$	6,400,000	$	1,614,677
Supplier B	$	1,070,954	$	1,458,913

As of December 31, 2015 and 2016, advances for purchases of property, plant and equipment in excess of 10% of total advances and prepayments to equipment suppliers are as follows:

	At December 31,
	2015		2016
Supplier A	$	71,783	$	236,929
Supplier B	$	66,689		-

(k) Property, plant and equipment

Property, plant and equipment are stated at cost less accumulated depreciation and impairment. Depreciation is computed on a straight-line basis over the following estimated useful lives:

Buildings	40-50 years
Leasehold improvement	10-25 years
Plant and machinery	10-25 years
Motor vehicles	4-5 years
Office equipment	3-5 years
Solar power projects	25 years

Construction in progress represents mainly the construction of new facilities in ReneSola Zhejiang, ReneSola Jiangsu, Sichuan ReneSola, and Sichuan Ruiyu. Costs incurred in the construction are capitalized and transferred to property, plant and equipment upon completion, at which time depreciation commences.

(l) Assets held-for-sale

Non-current assets and asset disposal groups are classified as held-for-sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable, the assets are available for immediate sale in their present condition and they are expected to qualify for recognition as a completed sale within one year from the date of classification. Non-current assets classified as held for sale are measured at lower of their carrying amount and fair value less costs to sell. In December 2015, the company had entered into an agreement to sell property and land use right in Sichuan, China, and the assets have been classified as assets held for sale as of December 31, 2015. This transaction was close in the course of 2016. In September 2016, the company had entered into an agreement to sell property and land use right in Zhejiang, China, and the assets have been classified as assets held-for-sale as of December 31, 2016. This transaction is expected to close in the course of 2017.

The company's assets held for sale are summarized below:

	At December 31, 2015		At December 31, 2016
Property, plant and equipment, net	$	3,530,744	$	6,638,018
Prepaid land use right, net	$	710,134	$	920,200
Total	$	4,240,878	$	7,558,218

(m) Interest capitalization

The Company capitalizes interest costs as part of the costs of constructing certain assets during the period of time required to get the assets ready for their intended use. The Company capitalizes interest to the extent that expenditures to construct an asset have occurred and interest costs have been incurred. The interest capitalized for project assets forms part of the cost of revenues when such project assets are sold and all revenue recognition criteria are met. Interest capitalization ceases once a project is substantially complete or no longer undergoing construction activities to prepare it for its intended use.

(n) Prepaid land use right

Prepaid land use right represent payments made to obtain land use rights. Prepaid land use right is recognized as an expense on a straight-line basis over the lease period of 40-50 years.

Expenses recognized were $779,703, $910,157 and $815,236 for the years ended December 31, 2014, 2015 and 2016, respectively.

(o) Impairment of long-lived assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable or that the useful life is shorter than originally estimated. The Company assesses recoverability of the long-lived assets by comparing the carrying amount of the assets to the estimated future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The Company recognizes an impairment loss in the event the carrying amount exceeds the estimated future undiscounted cash flows attributable to such assets, measured as the difference between the carrying amount of the assets and the fair value of the impaired assets.

The impairment losses of long-lived assets were $nil, $nil and $4,624,979 for the years ended December 31, 2014, 2015 and 2016 respectively (see Note 6).

(p) Deferred convertible notes issuance costs

Debt issuance costs are deferred and amortized using effective interest method through the earliest redemption date. The amortization, recorded in interest expense, was $933,152, $764,527 and $32,935 for the years ended December 31, 2014, 2015 and 2016, respectively.

(q) Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. If a potential material loss contingency is not probable but is reasonably possible, or is probable but the amount cannot be estimated, then the nature of the contingent liability, together with an estimate of the range of possible loss if determinable and material, is disclosed. Legal costs incurred in connection with loss contingencies are expensed as incurred.

(r) Income taxes

Deferred income taxes are recognized for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, net operating loss carry forwards and credits by applying enacted statutory tax rates applicable to future years. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. Current income taxes are provided for in accordance with the laws of the relevant taxing authorities. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. Before 2016, the component of the deferred tax assets and liabilities were individually classified as current and non-current based on the characteristics of the underlying assets and liabilities, or the expected timing of their use when they did not relate to a specific asset or liability. From 2016, the Company adopted ASU2015-17 prospectively, and as of December 31, 2016, the components of the deferred tax assets and liabilities are all classified as non-current in a classified statement of financial position.

(s) Revenue recognition

Solar power products

The Company sells solar power products including virgin polysilicon, monocrystalline and multicrystalline solar wafers and PV cells and modules. The Company also enters into agreements to process silicon materials into silicon ingots and wafers, and to process PV cells into modules for customers. The Company recognizes revenues when persuasive evidence of an arrangement exists, the products are delivered and title and risk of loss has passed to customers, the price to the buyer is fixed and determinable, and collectability is reasonably assured. Sales agreements typically contain customary product warranties but do not contain any post-shipment obligations nor any return or credit provisions.

A majority of the Company’s contracts provide that products are shipped under free on board (“FOB”) terms, cost, insurance and freight (“CIF”) terms or delivered duty unpaid (“DDU”) terms. Under FOB, the Company fulfills its obligation when the goods have passed over the ship’s rail at the named port of shipment. The customer bears all costs and risks of loss or damage to the goods from that point. Under CIF, the Company must pay the costs, insurance and freight necessary to bring the goods to the named port of destination, and bears the risk of loss or damage to the goods during transit. Under DDU, the Company is responsible for making a safe delivery of goods to a named destination, paying all transportation expenses but not the duty. The Company bears the risks and costs associated with supplying the good to the delivery location. The Company recognizes revenue when the title of goods and risk of loss or damage is transferred to the customers based on the terms of the sales contracts, and if the other recognition criteria are met.

Solar power projects

The Company recognizes revenue from the sale of project assets in accordance with ASC 360-20, Real Estate Sales. For these transactions, the Company has determined that the project assets, which represent the costs of constructing solar power projects, represent “integral” equipment and as such, the entire transaction is in substance the sale of real estate and subject to the revenue recognition guidance under ASC 360-20 Real Estate. Under the provisions of real estate accounting, the Company recognizes revenue under full accrual method when all of the following requirements are met: (a) the sales are consummated; (b) the buyer’s initial and continuing investments are adequate to demonstrate its commitment to pay; (c) the receivable is not subject to any future subordination; and (d) the Company has transferred the usual risk and rewards of ownership to the buyer. Specifically, the Company considers the following factors in determining whether the sales have been consummated: (a) the parties are bound by the terms of a contract; (b) all consideration has been exchanged; (c) permanent financing for which the seller is responsible has been arranged; and (d) all conditions precedent to closing have been performed, and the Company does not have any substantial continuing involvement with the project.

For sales agreements that have energy generation performance guarantees within certain timeframe, if there is an underperformance event, the Company may incur liquidated damages as a percentage of the EPC contract price. The Revenue recognized is reduced by the maximum amount of the payable liquidated damage, which amount is deferred until the end of the guarantee period.

For sales agreements that have conditional repurchase clauses if certain events occur, such as not achieving specified guaranteed performance level within a certain timeframe, the Company will not recognize revenue on such sales agreements until the conditional repurchase clauses are of no further force or effect and all other necessary revenue recognition criteria have been met.

The Company has recognized $nil, $110,737,934 and $83,107,906 from sales of project assets for the years ended December 31, 2014, 2015 and 2016, respectively

(t) Deferred project revenue

Deferred project revenue was $32,376,386 and $32,242,995 at December 31, 2015 and 2016, respectively, and represented customer payments received or customer billings made under the terms of solar power project related sales contracts for which all revenue recognition criteria for real estate transactions have not yet been met. The associated solar power project related costs are included as deferred project costs. The Company classifies such amounts as current or noncurrent depending on when all revenue recognition criteria are expected to be met, consistent with the classification of the associated deferred project costs.

(u) Cost of revenues

Cost of revenues consists of production related costs including costs of silicon raw materials, consumables, direct labor, overhead costs, depreciation of plant and equipment, contractor and processing fees. Shipping and handling costs incurred on sale of products and included in sales and marketing expense were $55,474,721, $34,734,098 and $19,598,411 for the years ended December 31, 2014, 2015 and 2016, respectively.

(v) Research and development

Costs related to the design, formulation and testing of new products or process alternatives are included in research and development expenses. Research and development costs are expensed when incurred.

(w) Warranty expenses

The Company’s solar modules are typically sold with 25 years warranties against specified declines in the initial minimum power generation capacity at the time of delivery. The Company also provides warranties for solar modules against defects in materials and workmanship for a period of five or ten years from the date of sale. Warranty cost is accrued at the point the related module revenue is recognized. Due to the limited solar module manufacturing history, the Company does not have a significant history of warranty claim. Cost of warranties is estimated based on an assessment of the Company’s and competitors’ accrual history, industry-standard testing, estimates of failure rates from quality review and other assumptions that are considered to be reasonable under the circumstances. Actual warranty costs are accumulated and charged against accrued warranty liability. To the extent that actual warranty cost differs from the estimates, the Company will prospectively revise the accrual rate. As such estimates are subjective, the Company will continue to analyze its claim history and the performance of its products and compare against its competitors, industry data for warranty claims, and other assumptions, such as academic research, to determine whether its accrual is adequate. The Company has adopted a warranty accrual rate of 1.0% of PV module revenues, based on its assessment of industry norms which also represents the Company's best estimate to date. Should it begin to experience warranty claims differing from its accrual rate, the Company would prospectively revise the warranty accrual rate. From the first quarter of 2014, the Company reclassified warranty expenses from cost of revenues to selling expenses, to better reflect its global OEM business operations and align its accounting policy to industry peers. Accordingly, beginning from the first quarter of 2014, warranty expenses have been recognized as part of selling expenses. The Company revised downward the estimated cost to satisfy the Company’s outstanding product warranty by $3,249,623 and $4,429,833 for the year ended December 31, 2015 and 2016, respectively, attributable primarily to decrease in the average selling prices (“ASPs”) for solar modules, a primary input into the estimated costs of the Company’s warranty policy.

(x) Government grants

Government grants received by the Company consist of unrestricted grants and subsidies and restricted grants. Unrestricted grants that allowed the Company’s full discretion in utilizing the funds were recognized as other operating income upon receipt of cash and when all the conditions for their receipt have been satisfied. The Company recorded $4,618,498, $3,815,650 and $2,457,077 government grants for the years ended December 31, 2014, 2015 and 2016 in other operating income, respectively.

Restricted grants related to property, plant and equipment are recorded as deferred subsidies and are amortized on a straight-line basis over the useful life of the associated assets. The Company received government grants related to property, plant and equipment and land use right of $12,037,938, $nil and $nil during the years ended December 31, 2014, 2015 and 2016, respectively. The deferred government grants as of December 31, 2015 and 2016 were $23,241,899 and $20,824,155, respectively, included in deferred subsidies and other in the consolidated balance sheets. The Company amortized the deferred grants in the amount of $1,455,103, $829,668 and $644,451 into other operating income for the years ended December 31, 2014, 2015 and 2016, respectively.

(y) Other operating expense (income)

Other operating expense (income) primarily consists of gains or losses on disposal of fixed assets and land use right, subsidies received from the government, and forfeitures of advances from customers.

(z) Foreign currency

The functional currency of ReneSola Ltd is the United States Dollar (“U.S. dollar”). The functional currency of ReneSola's subsidiaries in the PRC is Renminbi (“RMB”). The functional currency of the overseas subsidiaries normally is the local currency the subsidiary domiciles.

Foreign currency transactions have been translated into the functional currency at the exchange rates prevailing on the date of transactions. Foreign currency denominated monetary assets and liabilities are remeasured into the functional currency at exchange rates prevailing on the balance sheet date. Exchange gains and losses have been included in the determination of net income.

The Company has chosen the U.S. dollar as its reporting currency. Assets and liabilities have been translated using exchange rates prevailing on the balance sheet date. Income statement items have been translated using the weighted average exchange rate for the year. Translation adjustments have been reported as a component of other comprehensive income in the statement of comprehensive income.

The RMB is not a freely convertible currency. The PRC State Administration for Foreign Exchange, under the authority of the People’s Bank of China, controls the conversion of RMB into foreign currencies. The value of the RMB is subject to changes in central government policies and to international economic and political developments affecting supply and demand in the China foreign exchange trading system market. The Company’s cash and cash equivalents denominated in RMB amounted to RMB 34,604,501 ($5,342,001) and RMB 112,184,192 ($16,157,889) at December 31, 2015 and 2016, respectively. And the Company’s restricted cash denominated in RMB amounted to RMB 560,065,172 ($86,458,941) and RMB 613,666,780 ($88,386,426) at December 31, 2015and 2016, respectively.

(aa) Fair value of financial instruments

Fair value represents the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (also referred to as an exit price). The Company utilizes a hierarchy for inputs used in measuring fair value that gives the highest priority to observable inputs and the lowest priority to unobservable inputs. Valuation techniques used to measure fair value shall maximize the use of observable inputs.

When available, the Company measures the fair value of financial instruments based on quoted market prices in active markets, valuation techniques that use observable market-based inputs or unobservable inputs that are corroborated by market data. Pricing information the Company obtains from third parties is internally validated for reasonableness prior to use in the consolidated financial statements. When observable market prices are not readily available, the Company generally estimates the fair value using valuation techniques that rely on alternate market data or inputs that are generally less readily observable from objective sources and are estimated based on pertinent information available at the time of the applicable reporting periods. In certain cases, fair values are not subject to precise quantification or verification and may fluctuate as economic and market factors vary and the Company’s evaluation of those factors changes. Although the Company uses its best judgment in estimating the fair value of these financial instruments, there are inherent limitations in any estimation technique. In these cases, a minor change in an assumption could result in a significant change in its estimate of fair value, thereby increasing or decreasing the amounts of the Company’s consolidated assets, liabilities, equity and net income or loss. See Note 7, “Fair Value Measurements”, for further details.

(ab) Derivative financial instruments

The Company uses foreign exchange forward contracts to hedge the foreign currency exchange risk inherent in the future cash flows associated with forecasted sales denominated in foreign currencies, mainly in U.S. Dollar or Euro.

The Company accounts for these forward contracts as derivative instruments and recognizes all derivative instruments as either assets or liabilities at fair value in other financial assets or other financial liabilities in the consolidated balance sheets. The Company does not offset the carrying amounts of derivatives with the same counterparty.

The Company's derivative instruments do not qualify for hedge accounting. Accordingly, gains or losses resulting from changes in the values of derivative instruments are recognized as (gain) loss on derivatives, net, in the consolidated income statement.

Net (gains) losses recognized on derivative instruments from foreign currency forward exchange contracts were $(6,057,941), $6,030,915and $(4,591,991) in the years ended December 31, 2014, 2015 and 2016, respectively. As of December 31, 2016, the Company has outstanding foreign exchange forward contracts with a total notional amount of $50,605,200.

(ac) Earnings (loss) per share

Basic earnings (loss) per share is computed by dividing income attributable to holders of common shares by the weighted average number of common shares outstanding during the year. Diluted earnings (loss) per share reflects the potential dilution that could occur if securities or other contracts to issue common shares were exercised or converted into common shares.

(ad) Share-based compensation

The Company recognizes expenses for services received in exchange for awards of equity instruments based on the grant-date fair value of the award as determined by the Black-Scholes option pricing model, net of estimated forfeitures. The estimated compensation cost is recognized ratably over the period the grantee is required to provide services per the conditions of the award. See Note 13, “Share Based Compensation”, for further details.

(ae) Comprehensive income (loss)

Comprehensive income is the change in equity during a period from transactions and other events and circumstances from non-shareholder sources and included net income and foreign currency translation adjustments. As of December 31, 2014, 2015 and 2016, accumulated other comprehensive income was comprised entirely of foreign currency translation adjustments.

(af) Treasury Stock

On September 23, 2015, the Company's Board of Directors authorized the Company to repurchase up to $20 million of its ADSs, each representing its two ordinary shares in aggregate value of its outstanding ordinary shares through open market or private transactions during the twelve months period ending in September, 2016, depending on market condition.

In the year ended December 31, 2015, the Company repurchased an aggregate of 161,477 ADSs, representing 1,614,776 ordinary shares, on the open market for total cash consideration of $812,184 as treasury stock. As of December 31, 2015 the Company cancelled all the treasury stock.

In September 2016, the Company's Board of Directors decided to extend the share repurchase program for another 12 months ending September 2017.

In the year ended December 31, 2016, the Company repurchased an aggregate of 280,429 ADSs, representing 2,804,286 ordinary shares, on the open market for total cash consideration of $1,493,352 as treasury stock. As of December 31, 2016, the Company cancelled the 1,352,586 shares of the treasury stock. All of such repurchased shares have been canceled as of March 31, 2017

(ag) Concentrations of credit risk

Financial instruments that potentially expose the Company to concentrations of credit risk consist primarily of cash and cash equivalents, restricted cash, notes receivable, accounts receivable and advances to suppliers. The Company places its cash and cash equivalents with financial institutions with high-credit ratings and quality. The Company conducts credit evaluations of customers and generally does not require collateral or other security from its customers. The Company establishes an allowance for doubtful receivables mainly based on the age of receivables and factors surrounding the credit risk of specific customers. The Company performs ongoing credit evaluations of the suppliers’ financial conditions. The Company generally does not require collateral or other security against such suppliers; however, it maintains a reserve for potential credit losses. Such losses have historically been within management’s expectations.

(ah) Recently issued accounting pronouncements

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In August 2015, FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which delays the effective date of ASU 2014-09 by one year. FASB also agreed to allow entities to choose to adopt the standard as of the original effective date. In March 2016, FASB issued ASU No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations. The guidance includes indicators to assist an entity in evaluating whether it controls the good or the service before it is transferred to the customer. The new revenue recognition standard will be effective for public entities for annual reporting periods beginning after December 15, 2017, and interim periods therein, that is, the first quarter of 2018. The new standard also permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively with the cumulative effect of initially applying the guidance recognized at the date of initial application (the modified retrospective method).

The Company currently plans to adopt effective January 1, 2018 using the full retrospective approach; however, a final decision regarding the adoption method has not been made at this time. The Company’s final determination will depend on a number of factors such as the process of finalizing the impact to the Company’s financial results and from additional disclosure requirements.

The Company expects this adoption to primarily affect certain solar power project sales arrangements currently accounted for under ASC 360-20, which requires the Company to evaluate whether such arrangements have any forms of continuing involvement that may affect the revenue or profit recognition of the transactions, including arrangements with prohibited forms of continuing involvement requiring the Company to reduce the potential profit on a project sale by the maximum exposure to loss. The Company anticipates that ASU 2014-09, which supersedes the real estate sales guidance under ASC 360-20, will result in the earlier recognition of revenue and profit. The Company expects revenue recognition for other sales arrangements, including sales of solar cells and modules, and solar wafers products, to remain materially consistent with the current practice.

The Company will continues to assess the potential impacts of the new standard, including the areas described above, and anticipates that this standard will have a material impact on its consolidated financial statements. However, the Company does not know or cannot reasonably estimate quantitative information, beyond that discussed above, related to the impact of the new standard on the financial statements at this time.

In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810) - Amendments to the Consolidation Analysis. ASU 2015-02 modifies existing consolidation guidance related to (i) limited partnerships and similar legal entities, (ii) the evaluation of variable interests for fees paid to decision makers or service providers, (iii) the effect of fee arrangements and related parties on the primary beneficiary determination, and (iv) certain investment funds. These changes are expected to limit the number of consolidation models and place more emphasis on risk of loss when determining a controlling financial interest. ASU 2015-02 is effective for fiscal years and interim periods within those years beginning after December 15, 2015. The adoption of ASU 2015-02 in the first quarter of 2016 did not have a significant impact on the consolidated financial statements and associated disclosures.

In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10)-Recognition and Measurement of Financial Assets and Financial Liabilities. ASU 2016-01 changes how entities measure certain equity investments and present changes in the fair value of financial liabilities measured under the fair value option that are attributable to their own credit. The guidance also changes certain disclosure requirements and other aspects of current U.S. GAAP. ASU 2016-01 is effective for fiscal years and interim periods within those years beginning after December 15, 2017, and certain provisions of the guidance may be early adopted. The Company is still evaluating the impact ASU 2016-01 will have on the consolidated financial statements and associated disclosures.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)". This update requires an entity to recognize lease assets and lease liabilities on the balance sheet and to disclose key information about the entity's leasing arrangements. ASU 2016-02 is effective for annual reporting periods, and interim periods therein, beginning after December 15, 2018, with early application permitted. A modified retrospective approach is required. The Company is still in the process of assessing the potential financial impact the adoption will have to the Company.

In March 2016, the FASB issued ASU 2016-08, which amends the principal-versus-agent implementation guidance and illustrations in the Board's new revenue standard (ASC 606). The amendments in this update clarify the implementation guidance on principal versus agent considerations. When another party, along with the reporting entity, is involved in providing goods or services to a customer, an entity is required to determine whether the nature of its promise is to provide that good or service to the customer (as a principal) or to arrange for the good or service to be provided to the customer by the other party (as an agent). The guidance is effective for interim and annual periods beginning after December 15, 2017. The Company is still in the process of assessing the potential financial impact the adoption will have to the Company.

In March, 2016, the FASB issued Accounting Standards Update No. 2016-09 (ASU 2016-09), “Compensation – Stock Compensation (Topic 718)”, which simplifies several aspects of the accounting for employee share-based payment transactions for both public and nonpublic entities, including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. The new guidance, which is part of the Board’s simplification initiative, also contains two practical expedients under which nonpublic entities can use a simplified method to estimate the expected term of an award and make a one-time election to switch from fair value measurement to intrinsic value measurement for liability-classified awards. The ASU is effective for annual periods beginning after December 15, 2016 and early adopt is permitted. The Company is in the process of evaluating the impact of the standard on its consolidated financial statements.

In August, 2016, the FASB issued Accounting Standards Update No. 2016-15 (ASU 2016-15), “Statement of Cash Flows”, a proposed ASU on restricted cash in response to an EITF consensus-for-exposure. The proposed ASU would require an entity to include in its cash and cash-equivalent balances in the statement of cash flows those amounts that are deemed to be restricted cash and restricted cash equivalents. The proposal’s primary purpose is to eliminate the diversity in practice related to how entities classify and present changes in restricted cash in the cash flow statement in accordance with ASC 230. The ASU is effective for annual and interim periods beginning after December 15, 2017 and early adoption is permitted. The Company is in the process of evaluating the impact of the standard on its consolidated financial statements.

In October 2016, the FASB issued Accounting Standards Update No. 2016-16 (ASU 2016-16), “Income Taxes (Topic 740), Intra-Entity Transfers of Assets Other Than Inventory”. The new guidance requires that entities recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, rather than when the asset is sold to an outside party. The guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period (as of the first interim period if an entity issues interim financial statements). The new guidance requires adoption on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. The Company is in the process of evaluating the impact of the standard on its consolidated financial statements.

In November, 2016, the FASB issued Accounting Standards Update No. 2016-18 (ASU 2016-18), “Statement of Cash Flows”, which amends ASC 230 to add or clarify guidance on the classification and presentation of restricted cash in the statement of cash flows. The ASU is effective for annual and interim periods beginning after December 15, 2017 and early adoption is permitted. The Company is in the process of evaluating the impact of the standard on its consolidated financial statements.

ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES

12 Months Ended

Dec. 31, 2016

ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES [Abstract]

ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES

3. ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES

Allowances for doubtful receivables are comprised of allowances for accounts receivable and allowances for other receivables. The Company establishes an allowance for doubtful accounts primarily based on factors surrounding the credit risk of specific customers.

The Company made provision for doubtful debts in the aggregate amount of $5,710,167, $117,520 and $1,993,446 during the year ended December 31, 2014, 2015 and 2016, respectively.

Analysis of allowances for accounts receivable is as follows:

	At December 31,
	2014		2015		2016
Beginning of the year	$	4,869,942	$	7,638,434	$	5,152,466
Allowances made during the year		9,526,878		2,516,554		1,540,047
Reversals made during the year		(4,090,855)		(2,943,154)		(2,401,464)
Write off		(2,371,420)		(1,847,631)		(1,493)
Foreign exchange effect		(296,111)		(211,737)		(208,053)
Closing balance	$	7,638,434	$	5,152,466	$	4,081,503

Analysis of allowances for other receivables is as follows:

	At December 31,
	2014		2015		2016
Beginning of the year	$	8,904,534	$	9,130,804	$	8,882,559
Allowances(reversal) made during the year		234,898		(226,533)		1,273,437
Foreign exchange effect		(8,628)		(21,712)		(67,125)
Closing balance	$	9,130,804	$	8,882,559	$	10,088,871

Analysis of allowances for advances for purchases of property, plant and equipment is as follows:

	At December 31,
	2014		2015		2016
Beginning of the year	$	1,306,139	$	1,286,046	$	1,960,329
Allowances made during the year		12,983		769,367		30,811
Write off		-		-		(350)
Foreign exchange effect		(33,076)		(95,084)		(149,647)

Closing balance	$	1,286,046	$	1,960,329	$	1,841,143

Analysis of allowances for advances to suppliers is as follows:

	At December 31,
	2014		2015		2016
Beginning of the year	$	4,442,627	$	4,459,487	$	4,441,461
Allowances made during the year		26,263		1,286		1,550,615
Write-off		-		(49)		-
Foreign exchange effect		(9,403)		(19,263)		(195,396)
Closing balance	$	4,459,487	$	4,441,461	$	5,796,680

INVENTORIES

12 Months Ended

Dec. 31, 2016

INVENTORIES [Abstract]

INVENTORIES

4. INVENTORIES

	At December 31,
	2015		2016
Raw materials	$	44,208,096	$	21,112,892
Work-in-process		27,302,298		27,941,926
Finished goods		121,660,725		94,921,237
Total inventories	$	193,171,119	$	143,976,055

For the year ended December 31, 2014, 2015 and 2016, inventory was written down by $808,031, $619,858 and $1,963,411, respectively, to reflect the lower of cost or market.

PROJECT ASSETS AND DEFERRED PROJECT COSTS

12 Months Ended

Dec. 31, 2016

PROJECT ASSETS AND DEFERRED PROJECT COSTS [Abstract]

PROJECT ASSETS AND DEFERRED PROJECT COSTS

5. PROJECT ASSETS AND DEFERRED PROJECT COSTS

Project assets and deferred project costs consisted of the following at December 31, 2015 and 2016, respectively:

	At December 31,
	2015		2016
Project assets - Module cost	$	1,923,114	$	6,822,294
Project assets - Development		13,495,278		42,615,862
Project assets - Others		4,795,230		5,449,251
Total project assets	$	20,213,622	$	54,887,407

Current portion		20,213,622		48,177,416
Non-current portion		-		6,709,991

Total deferred project costs	$	20,874,446	$	16,374,899

Current portion		-		-
Noncurrent portion		20,874,446		16,374,899

Total project assets and deferred project costs	$	41,088,068	$	71,262,306

PROPERTY, PLANT AND EQUIPMENT, NET

12 Months Ended

Dec. 31, 2016

PROPERTY, PLANT AND EQUIPMENT, NET [Abstract]

PROPERTY, PLANT AND EQUIPMENT, NET

6. PROPERTY, PLANT AND EQUIPMENT, NET

Property, plant and equipment, net, comprise:

	At December 31,
	2015		2016
Buildings	$	218,144,388	$	206,408,397
Leasehold improvement		129,294		129,294
Plant and machinery		793,331,294		722,238,300
Motor vehicles		2,442,337		2,258,912
Office equipment		11,893,297		12,998,049
Power stations		36,737,149		23,170,604

		1,062,677,759		967,203,556
Less: Accumulated depreciation		441,165,827		483,716,135

		621,511,932		483,487,421
Construction in progress		8,950,138		7,767,791

Property, plant and equipment, net	$	630,462,070	$	491,255,212

Construction in progress represents new production facilities under construction in ReneSola Zhejiang, ReneSola Jiangsu, Sichuan Renesola and Sichuan Ruiyu.

The carrying amount of the power stations is $36.7 million and $23.2 million as of December 31, 2015 and 2016, respectively and was reclassified from project assets to property plant and equipment at the point it no longer met the held for sale criteria.

Depreciation expense for the years ended December 31, 2014, 2015 and 2016 was $90,223,634, $90,112,980 and $83,205,965, respectively.

For the year ended December 31, 2016, the Company recognized $4,624,979 impairment charge for certain idled assets. The impairment charge was recognized as the amount by which the carrying amount exceeded the fair value of the idled assets.

FAIR VALUE MEASUREMENTS

12 Months Ended

Dec. 31, 2016

FAIR VALUE MEASUREMENTS [Abstract]

FAIR VALUE MEASUREMENTS

7. FAIR VALUE MEASUREMENTS

The Company adopted ASC 820, “Fair Value Measurements and Disclosures”, which provides a framework for measuring fair value under U.S. GAAP, and expanded disclosure requirements about assets and liabilities measured at fair value. The Company utilizes a hierarchy for inputs used in measuring fair value that gives the highest priority to observable inputs and the lowest priority to unobservable inputs as follows:

•

Level 1-Observable unadjusted quoted prices in active markets for identical assets or liabilities.

•

Level 2-Observable inputs other than quoted prices in active markets for identical assets or liabilities, for which all significant inputs are observable, either directly or indirectly.

•

Level 3-Unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities.

Assets and liabilities carried at fair value as of December 31, 2016 are classified in the categories described above based on the lowest level input that is significant to the fair value measurement in its entirety.

Recurring basis

The following table displays assets and liabilities measured on the Company’s consolidated balance sheet at fair value on a recurring basis subsequent to initial recognition:

As of December 31, 2016

Fair Value Measurements at Reporting Date Using

Quoted Prices

Total Fair

in Active

Significant

Value and

Markets for

Other

Significant

Carrying

Identical

Observable

Unobservable

Value on the

Assets

Inputs

Balance Sheet

(Level 1)

(Level 2)

(Level 3)

Cross currency forward exchange contracts -recorded as derivative assets

2,715,736

Warrant liability

As of December 31, 2015

Fair Value Measurements at Reporting Date Using

Quoted Prices

Total Fair

in Active

Significant

Value and

Markets for

Other

Significant

Carrying

Identical

Observable

Unobservable

Value on the

Assets

Inputs

Balance Sheet

(Level 1)

(Level 2)

(Level 3)

Cross currency forward exchange contracts -recorded as derivative assets

56,253

Cross currency forward exchange contracts -recorded as derivative liabilities

(29,519)

Warrant liability

(577,500)

Derivatives-The Company's use of derivatives primarily consists of foreign currency forward contracts. As quoted prices in active markets for identical assets are not available, the Company uses quotes obtained from professional pricing sources. The Company considers the credit ratings of respective counterparties in determining the impact of risk of defaults on the valuation of derivative assets. These fair value measurements are classified as level 2.

Warrant liability-The fair value of the warrant liability (see Note12) was determined using the Monte Carlo Model, with certain inputs significant to the valuation methodology classified as level 2.

Non-recurring basis

The Company measures certain long-lived assets at fair value on a non-recurring basis in periods after initial measurement in circumstances when the fair value of such assets is below its recorded cost and impairment is required.

The Company recorded impairment charges for certain idled assets of $nil, $nil and $4.6 million for the years ended December 31, 2014, 2015 and 2016 respectively. The fair value of the assets was measured based on prices offered by unrelated third-party willing buyers and classified as level 3 fair value measurements as the offering prices are not observable.

The Company also holds financial instruments that are not recorded at fair value in the consolidated balance sheets, but whose fair value is required to be disclosed under U.S. GAAP.

Cash and cash equivalents, restricted cash, accounts receivable, accounts payable, accounts due to and from related parties, and short-term borrowings are carried at cost on the consolidated balance sheets and the carrying amount approximates their fair value because of the short-term nature of these financial instruments.

The carrying amount of the Company’s outstanding convertible notes as of December 31, 2015 and 2016 was $26.1 million and $nil million, respectively. The estimated fair value of those debts was $24.8 million and $nil million, respectively, as of December 31, 2015 and 2016. The fair value was measured based on observable market quotes and is therefore considered a level 1 fair value measurement.

The Company’s long-term bank borrowing consists of floating rate loans that are reset annually. The carrying amount of long-term borrowings (including the current portions) was $39.9 million and $28.8 million of December 31, 2015 and 2016, respectively. The estimated fair value of long-term borrowings (including the current portion) was $38.6 million and $27.6 million as of December 31, 2015 and 2016, respectively. The fair value is measured using discounted cash flow technique based on current rates for comparable loans on the respective valuation date and it therefore considered a level 2 measurement.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

INCOME TAXES

12 Months Ended

Dec. 31, 2016

INCOME TAXES [Abstract]

INCOME TAXES

8. INCOME TAXES

The tax benefit (expense) comprises:

	Years ended December 31,
	2014		2015		2016
Income (Loss) before income tax
PRC	$	(2,748,982)	$	22,416,826	$	26,560,892
Other jurisdictions		(31,234,691)		(26,818,332)		(58,965,544)
Total		(33,983,673)		(4,401,506)		(32,404,652)
Current tax benefit (expense)
PRC	$	-	$	-	$	(2,412,560)
Other jurisdictions		256,071		(218,556)		(251,202)
Subtotal		256,071		(218,556)		(2,663,762)
Deferred tax benefit (expense)
PRC	$	(4,595,374)	$	97,189	$	(611,029)
Other jurisdictions		4,689,183		(552,249)		981,192
Subtotal		93,809		(455,060)		370,163
Total income tax benefit (expense)	$	349,880	$	(673,616)	$	(2,293,599)

ReneSola is not subject to tax under the laws of British Virgin Islands.

ReneSola Zhejiang is a Foreign Invested Enterprise (“FIE”) incorporated in the PRC. The statutory income tax rate in the PRC is 25% starting from 2008.

ReneSola Zhejiang obtained the approval of High-New Technology Enterprise (“HNTE”) status in 2009 and renewed the HNTE status for another 3-year period twice from 2012 to 2017. ReneSola Jiangsu obtained the approval of HNTE status for the period from 2015 to 2017. Sichuan ReneSola obtained approval of HNTE status for the period from 2015 to 2017. Under the EIT Law, a HNTE is eligible for the 15% reduced EIT rate.

For PRC entities, the qualified research and development expenses incurred by them for development of new technology, new products and new techniques could have a 50% super deduction in addition to the actual expense deductions for PRC enterprise income tax purpose. A number of group entities are eligible for such R&D super deduction.

The Company also has overseas operations in the jurisdiction of the United States, Republic of Singapore, Federal Republic of Germany, Republic of Bulgaria, Commonwealth of Australia, Japan, Republic of India, Grand Duchy of Luxembourg, Republic of Romania, United Kingdom, Republic of South Africa, Republic of Croatia, Republic of Panama and Republic of Korea. The corporate income tax rates range from 10% to 40%.

Sichuan Ruiyu, Sichuan Ruixin, Sichuan SiLiDe, Energy-Saving Technology, Zhejiang Academe, ReneSola Shanghai, Beijing Xuyuan, Zhejiang ReneSola PV Materials, ReneSola Kexu, ReneSola Bangsheng, ReneSola Fuyun and ReneSola Zhejiang Solar New Energy Academe are incorporated in the PRC. The corporate income tax rate is 25%.

There was no reversal or addition of unrecognized tax benefits during the year ended December 31, 2014, 2015 and 2016, respectively.

The Company classifies interest and penalties related to income tax matters in income tax expense. As of December 31, 2014, 2015 and 2016, there were no interests and penalties related to uncertain tax positions. The Company does not anticipate any significant increases or decreases to its liabilities for unrecognized tax benefits within the next twelve months.

According to the PRC Tax Administration and Collection Law, the statute of limitations is three years if the underpayment of taxes is due to computational errors made by the taxpayer. The statute of limitations will be extended to five years under special circumstances, which are not clearly defined, but an underpayment of taxes exceeding RMB100,000 (approximately $15,060) is specifically listed as a special circumstance. In the case of a transfer pricing related adjustment, the statute of limitations is ten years. There is no statute of limitations in the case of tax evasion. The Company’s PRC subsidiaries are therefore generally subject to examination by the PRC tax authorities from 2012 through 2016 on non-transfer pricing matters, and from 2007 through 2016 on transfer pricing matters.

The principal components of deferred income tax assets and liabilities are as follows:

	At December 31,
	2015		2016
Deferred tax assets:
Property, plant and equipment	$	373,994	$	998,093
Inventories provision		452,362		700,182
Tax losses		81,552,073		89,148,913
Contingent liabilities		843,219		264,806
Bad debts provision		1,603,589		1,793,593
Deferred subsidies		4,123,916		3,750,258
Impairment for long-lived assets		43,366,347		40,808,679
Warranty provision		8,925,955		8,435,581
Silicon income		262,383		-
Others		1,557,477		465,334
Total gross deferred tax assets	$	143,061,315	$	146,365,439
Valuation allowance on deferred tax assets		(126,550,971)		(130,567,941)
Net deferred tax assets	$	16,510,344	$	15,797,498
Analysis as
Current	$	5,988,646	$	-
Non-current		10,521,698		15,797,498
	$	16,510,344	$	15,797,498
Deferred tax liabilities:
Prepaid land use right	$	283,980	$	258,556
Total deferred tax liabilities	$	283,980	$	258,556
Analysis as:
Current	$	-	$	-
Non-current		283,980		258,556
	$	283,980	$	258,556

As of December 31, 2016, the PRC Companies had net operating loss carry forwards of $272,699,478, of which $123,322,586, $22,371,011, $60,072,505, $63,210,580 and $3,722,796 will expire in 2017, 2018, 2019, 2020 and 2021, respectively. ReneSola US had net operating loss carry forwards of $20,417,176, which will expire from 2032 to 2036. ReneSola Germany had net operating loss carry forwards of $18,067,167 which can be offset in future without any time restriction.

The Company considers positive and negative evidence to determine whether some portion or all of the deferred tax assets will not be realized. This assessment considers, among other matters, the nature, frequency and severity of recent losses, forecasts of future profitability, the duration of statutory carry forward periods, the Company’s experience with tax attributes expiring unused and tax planning alternatives.

The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible for tax purposes. As a result, the Company has recognized a valuation allowance of $ $126,550,971 and $130,567,941 as at December 31, 2015 and 2016, respectively.

Reconciliation between the applicable statutory income tax rate and the Company’s effective tax rate for the years ended December 31, 2014, 2015 and 2016 is as follows:

	Years ended December 31,
	2014			2015			2016
PRC applicable income tax rate		25.0	%		25.0	%		25.0	%
Effect of Tax holiday - HNTE		11.3	%		-			1.1	%
Effect of Tax holiday - non-taxable income		0.8	%		-			-
Valuation allowance		(36.1)	%		(142.3)	%		(29.9)	%
Expiration of tax loss		(14.0)	%		-			(3.8)	%
Effect of different tax rate of subsidiaries		13.5	%		113.9	%		(4.1)	%
Effect of future tax rate change		-			20.9	%		10.3	%
Non-deductible expense		(7.3)	%		(65.4)	%		(5.6)	%
R&D super deduction		8.4	%		44.3	%		3.7	%
Land value-added tax		-			-			(3.7)	%
Others		(0.6)	%		(11.7)	%		(0.1)	%
Effective income tax rate		1.0	%		(15.3)	%		(7.1)	%

The aggregate amount and per share effect of the Tax Holiday including effect of timing difference reversed in the year with different rate are as follows:

	Years ended December 31,
	2014		2015		2016
Aggregate	$	4,081,529	$	-	$	93,403
Per share effect -basic	$	0.02	$	-	$	-
Per share effect-diluted	$	0.02	$	-	$	-

In accordance with the EIT Law, dividends, which arise from profits of FIEs earned after January 1, 2008, are subject to a 10% withholding income tax. Under applicable accounting principles, a deferred tax liability should be recorded for taxable temporary differences attributable to the excess of financial reporting basis over tax basis in a domestic subsidiary. However, a deferred tax liability is not recognized if the basis difference is not expected to reverse in the foreseeable future and is expected to be permanent in duration. The Company believes that the PRC entities' undistributed earnings generated after January 1, 2008 will be permanently reinvested in the PRC entities. As such, no deferred taxes have been recorded on these undistributed earnings of the Company's PRC subsidiaries as these differences are not expected to reverse in the foreseeable future and are expected to be permanent in duration. The temporary difference for which no deferred tax liability has been recognized is $34.5 million and $52.1 million as of December 31, 2015 and 2016, respectively. The undistributed earnings accumulated in other overseas operating entities are immaterial.

BORROWINGS

12 Months Ended

Dec. 31, 2016

BORROWINGS [Abstract]

BORROWINGS

9. BORROWINGS

The Company’s bank borrowings consist of the following:

	At December 31,
	2015		2016
Short-term	$	667,682,811	$	595,433,960
Long-term, current portion		1,104,735		-
Subtotal		668,787,546		595,433,960
Long-term		38,776,693		28,835,700
	$	707,564,239	$	624,269,660

As of December 31, 2015 and 2016, the maximum bank credit facilities granted to the Company were $759,673,982 and $656,736,068, respectively, of which $663,519,098 and $590,429,784 were drawn down, and $96,154,884 and $66,306,284 were available as of December 31, 2015 and 2016, respectively. The available lines of credit as of December 31, 2016 are subject to annual review and renewal by the financial intuitions.

As of December 31, 2015, short-term borrowings of $307,558,955 and long-term borrowings of $9,294,218 were secured by property, plant and equipment with carrying amounts of $511,097,611, investment of $188,471,367, and prepaid land use right of $34,555,805. As of December 31, 2016, short-term borrowings of $390,898,024 and long-term borrowings of $28,835,700 were secured by property, plant and equipment with carrying amounts of $470,327,154 and prepaid land use right of $26,539,709.

In addition, $318,008,380 and $292,380,900 of borrowings were guaranteed by personal assets of Mr. Xianshou Li, the Company's chief executive officer, and his family as of December 31, 2015 and 2016, respectively.

a) Short-term

Interest rates for all short-term borrowings are variable for certain short-term borrowings, and are updated monthly. The weighted average interest rate of short term loans was 5.75%, 5.65% and 4.85% in the years ended December 31, 2014, 2015 and 2016, respectively. The borrowings are repayable within one year. There are financial covenants associated with Renesola Zhejiang, Renesola Jiangsu, Zhejiang Integration, and Sichuan Ruiyu s short-term borrowings of $323,339,957, $20,164,200, $2,880,600 and $7,201,500 respectively, related to certain operational metrics and financial ratios. As of December 31, 2016, the aforementioned four subsidiaries were in compliance with all debt covenants.

b) Long-term

Interest rates are variable for certain portions of the long-term borrowings, and are updated every three months, once a year or according to a predetermined schedule. The weighted average interest rate of long-term borrowings was 6.91%, 6.58% and 6.8% in the year ended December 31, 2014, 2015 and 2016, respectively.

Future principal repayment on the long-term bank loans are as follows:

2020 and after

28,835,700

c) Interest expense

Interest expense incurred for the years ended December 31, 2014, 2015 and 2016 was $49,261,829, $43,417,785 and $33,939,704, respectively, of which $246,027, $nil and $nil has been capitalized in the carrying value of property, plant and equipment.

OTHER CURRENT LIABILITIES

12 Months Ended

Dec. 31, 2016

OTHER CURRENT LIABILITIES [Abstract]

OTHER CURRENT LIABILITIES

10. OTHER CURRENT LIABILITIES

The Company’s other current liabilities are summarized below:

	At December 31,
	2015		2016
Payable for purchase of property, plant and equipment	$	33,529,239	$	21,959,267
Other payables		43,709,026		40,165,675
	$	77,238,265	$	62,124,942

CONVERTIBLE SENIOR NOTES

12 Months Ended

Dec. 31, 2016

CONVERTIBLE SENIOR NOTES [Abstract]

CONVERTIBLE SENIOR NOTES

11. CONVERTIBLE SENIOR NOTES

On March 15, 2011, the Company issued $175,000,000 of U.S. Dollar-Settled 4.125% Convertible Senior Notes(“Notes”) due March 15, 2018, which are convertible into American Depositary Shares (the “ADSs”), each currently representing two ordinary shares of the Company. On April 7, 2011, an over-allotment option up to $25,000,000 aggregate principal amount of Notes were fully exercised by initial purchasers. The key terms of the Notes are as follows:

Interest. The Notes bear interest at the rate of 4.125% per annum, payable semi-annually in arrears on March 15 and September 15.

Redemption at maturity. Each Note may be redeemed upon maturity at a price of 100% of principal amount plus accrued interest, if any, from March 15, 2016.

Conversion. The Notes may be converted into ADSs at the option of the holders at any time prior to maturity. The conversion price is initially $10.5473 per ADS and is subject to adjustment upon the occurrence of specified events but will not be adjusted for accrued and unpaid interest, if any. Based on the conversion price of $10.5473 per ADS, the number of ADSs to be allotted and issued by the Company on full conversion of the Notes will be approximately 2,478,833 as of December 31, 2015.

Put Options. The holders have the option to require the Company to redeem all or any portion of the Notes on March 15, 2016 (the "repurchase date"), at a repurchase price equal to 100% of the principle amount plus any accrued and unpaid interest, if any, to, but excluding the repurchase date.

No beneficial conversion feature charge was recognized for the issuance of the Notes as the estimated fair value of the ordinary shares was less than the conversion price on the date of issuance.

The embedded conversion option and put options are not bifurcated and recognized as derivatives.

Capped call transaction. In connection with the pricing of the Notes, the Company has entered into a capped call transaction with an affiliate of one of the initial purchasers of the Notes (the "hedge counterparty"). The capped call transaction is expected generally to reduce potential dilution to the Company's ordinary shares and ADSs upon conversion of the Notes. The cap price under the capped call transaction is $15.0675 per ADS, and the premium of preliminary and over-allotment option is $21,504,779 and $3,197,500, respectively. The premium was first credited to additional paid-in capital, and then to retained earnings once additional paid-in capital was reduced to zero. For the year ended December 31, 2011, approximately $88,384,000 par value Notes was repurchased using cash of $57,055,127. The related deferred issuance costs of $2,978,934 were expensed. The Company recorded a net gain of $28,349,939 on the repurchase of the Notes. As a result of the repurchase of these Notes, a portion of the premium paid in connection with the capped call facility of $861,280 was refunded.

For the year ended December 31, 2015, approximately $68,454,000 par value Notes was repurchased using cash of $54,376,600. The related deferred issuance cost of $384,131was expensed. The Company recorded a net gain of $13,693,269 on the repurchase of the Notes.

For the year ended December 31, 2016, approximately $26,145,000 par value Notes was repurchased using cash of $25,931,219. The related deferred issuance cost of $1,725 was expensed. The Company recorded a net gain of $212,056 on the repurchase of the Notes.

As of December 31, 2015 and 2016, the carrying value of the Notes was $26,145,000 and $nil, respectively.

The issuance costs of $7,156,101 paid in 2011 is amortized from the date of issuance to the redemption date, using effective interest rate method. The amortization expense was $933,152, $764,527 and $32,935 for the years ended December 31, 2014, 2015 and 2016, respectively.

WARRANT LIBILITY

12 Months Ended

Dec. 31, 2016

WARRANT LIBILITY [Abstract]

WARRANT LIBILITY

12. WARRANT LIBILITY

In connection with the public offering of the Company’s common stock that closed on September 16, 2013, the Company issued to its underwriters, a warrant to purchase up to a total of 10,500,000 shares of common stock (35% of the shares sold in the public offering) at $30.2 per ADS (aggregate of 1,050,000 ADSs) or $3.02 per share. The option is exercisable from September 16, 2013 to September 16, 2017. There are three ways in which the Company might settle the warrant liability: i) physical delivery of Shares, ii) physical delivery of ADS (at the election of the holder) or iii) net share settlement, if unable to register the shares in the case of i and ii. Warrants are separately transferable, and the holder can choose to exercise the warrant in whole or part. The exercise price is subject to adjustment under several circumstances and also to anti-dilution adjustments. All the warrants are outstanding as of December 31, 2016.

The Company is accounting for the warrant as a derivative liability because the exercise price is subject to adjustment under several special circumstances, including anti-dilution clauses. As a result, the warrant is not considered indexed to the Company’s own stock, and as such, all future changes in the fair value of the option are recognized currently in earnings until such time as the warrant is exercised or expired.

On September 16, 2013, the issue date of the warrant, the Company recorded this warrant at its fair value of $12,547,500 with an offset to shareholders' equity. The Company recognized a gain of $7,455,000, $1,312,500 and $577,500 from the change in fair value of the warrant liability for years ended December 31, 2014, 2015 and 2016.

This warrant does not trade in an active securities market, and as such, the Company estimates its fair value using the Monte Carlo Simulation as of the date that the warrant was originally issued and as of December 31, 2014, 2015 and 2016 using the following main assumptions:

	As September16,			As December 31,			As December 31,
	2014			2015			2016
Stock price	$	7.05		$	8.50		$	3.20
Exercise price	$	30.2		$	30.2		$	30.2
Annual dividend yield		-	%		-	%		-	%
Time to maturity		2.7			1.7			0.7
Risk-free interest rate		0.96	%		0.93	%		0.70	%
Expected volatility		83.0	%		67.2	%		42.9	%

Expected volatility is based on historical volatility. Historical volatility is computed using daily pricing observations for recent periods that correspond to the term of the warrant. The Company believes this method produces an estimate that is representative of future volatility over the expected term of this warrant. The expected life is based on the remaining term of the warrant. The risk-free interest rate is based on U.S. Treasury securities with time to maturity close to the remaining term of the warrant.

The following is a reconciliation of the beginning and ending balances of warrants liability measured at fair value on a recurring basis using Level 2 inputs:

	As December 31,
	2016
Beginning balance	$	577,500
Warrants issued		-
Fair value change of the issued warrants included in earnings		(577,500)
Ending balance	$	-

SHARE BASED COMPENSATION

12 Months Ended

Dec. 31, 2016

SHARE BASED COMPENSATION [Abstract]

SHARE BASED COMPENSATION

13. SHARE BASED COMPENSATION

Share Awards to Employees

In November 2006, the Company entered into an agreement with Mr. Panjian Li (“Mr. Li”), Chief Executive Officer of ReneSola America, and with Binghua Huang (“Mr. Huang”), Chief Technology Officer of the Company, to grant 40,000 and 20,000 common shares, respectively, each year for a period of five and three years, respectively, commencing January 2008. The fair value of the shares was $4.47 per share based on the market price as of the grant date. These shares do not have an exercise price and vest at no cost to Mr. Li or Mr. Huang.

2007 Share Incentive Plan

On September 27, 2007, the Company adopted the ReneSola Ltd 2007 Share Incentive Plan (the “Plan”) that provides for grant of share options, restricted shares and restricted share units to employees in the Plan. A maximum of 7,500,000 authorized but unissued shares of the Company have been reserved and allocated to the Plan, whose shares were subsequently registered and are issuable upon exercise of outstanding options granted under the Plan. The Plan shall be administered by the Compensation Committee of the Board of Directors (the “Committee”).

Except as otherwise noted in the award agreements with the employee or consultant, the options can be exercised within six years from the award date, except for participant’s termination of employment or service. The vesting schedule and the exercise price per share will be determined by the Committee and set forth in the individual award agreement. In the event of any distribution, share split, or recapitalization of the Company, the Committee shall make such proportionate and equitable adjustments, if any, to reflect such change with respect to (a) the aggregate number and type of shares that may be issued under the Plan and (b) the terms and conditions of any outstanding awards. Except as may otherwise be provided in any award agreement, if a change of control occurs and a participant’s awards are not converted, assumed, or replaced by a successor, such awards shall become fully exercisable and all forfeiture restrictions on such awards shall lapse.

Options to Employees

From January to December 2014, the Company granted 2,590,000 share options to certain employees with exercise prices of $0.74. From January to December 2015, the Company granted 1,150,000 share options to certain employees with exercise prices of $0.74.From January to December 2016, the Company granted 825,000 share options to certain employees with exercise prices of $0.74.

Options Modification

On August 8, 2012, the Board of Directors approved an option modification to reduce the exercise price of all the options granted before August 8, 2012 to the then fair market value of the Company’s ordinary shares underlying such options. All other terms of the share options granted remain unchanged. The modification resulted in incremental compensation cost of $774,932, of which $444,373 was recorded during the year ended December 31, 2012. The remaining $330,559 will be amortized over the remaining vesting period of the modified options, ranging from 2013 to 2017.

On March 18, 2014, the Board of Directors approved another option modification to reduce the exercise price of certain options granted between August 8, 2012 and December 31, 2013 to the then fair market value of the Company’s ordinary shares underlying such options. All other terms of the share options granted remain unchanged. The incremental compensation cost resulted from modification was not material.

The fair value of each option grant, as well as the fair value of option immediately before and after the aforementioned modification, is estimated on the date of grant or modification using the Black-Scholes option pricing model using the assumptions noted below.

			Weighted average
	Average risk-free		expected option			Dividend
	rate of return		life	Volatility rate		yield
Granted in 2014		1.63-1.76%	4.5 years		169.77-173.01%		0	%
Granted in 2015		1.36-1.76%	3.2 years		140.01-146.02%		0	%
Granted in 2016		1.00-1.52%	3.2 years		119.83-146.29%		0	%

Expected volatilities based on the average of the standard deviation of the daily stock prices of the Company and other selected comparable companies in the same industry. The expected term of options represents the period of time that options granted are expected to be outstanding. The risk-free rate of return is based on the US Treasury bond yield curve in effect at the time of grant for periods corresponding with the expected term of the option.

A summary of the option activity is as follows:

					Weighted
			Weighted		Average		Aggregate
	Number of		Average		Remaining		Intrinsic
	Options		Exercise Prices		Contractual Life		Value
Options
Outstanding on January 1, 2016		5,947,000		0.74		2.14		-
Granted		825,000		0.74				-
Exercised		-		-
Forfeited		(687,000)		0.74

Outstanding on December 31, 2016		6,085,000		0.74		1.75		-

Vested or expected to vest at December 31, 2016		5,966,260		0.74		1.48		-

Exercisable at December 31, 2016		3,313,600		0.74		0.67		-

The weighted average grant date fair value of options granted during the years ended December 31, 2014, 2015 and 2016 was $1.67, $0.72 and $0.48 respectively.

Total intrinsic value of options exercised for the years ended December 31, 2014, 2015 and 2016was $306,534, $644,895 and $nil respectively.

Compensation cost of $2,104,126, $1,204,494 and $692,322 has been charged against income during the year ended December 31, 2014, 2015 and 2016, respectively. As of December 31, 2016, there was $1,360,533 in total unrecognized compensation expense related to unvested options granted under the Plan, which is expected to be recognized over a weighted-average period of 3.69 years.

Restricted Share Units

In May 2014, the Compensation Committee of the Board of Directors of the Company approved a Restricted Share Units (“RSUs”) award program pursuant to the Plan.

A summary of the RSUs activity is as follows:

			Weighted
	Number of		Average
	shares			Grant Date Fair Value
RSUs
Unvested on January 1, 2016		137,500		1.36
Granted		280,000		0.63

Vested		(137,500)		1.36
Unvested on December 31, 2016		280,000		0.63

The RSUs are measured based on the fair market value of the underlying common stock on the dates of grant. The aggregate compensation cost for RSUs recorded under the Plan was $323,000 and $54,658 for the ended of December 31, 2015 and 2016. As of December 31, 2016, there was $120,342 in total unrecognized compensation expense related to unvested RSUs following the forfeiture.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

EMPLOYEE BENEFITS

12 Months Ended

Dec. 31, 2016

EMPLOYEE BENEFITS [Abstract]

EMPLOYEE BENEFITS

14. EMPLOYEE BENEFITS

In accordance with the relevant rules and regulations in the PRC, employees of the Company are covered by benefit plans established by the local government. These plans are defined contribution plans and ReneSola Zhejiang, Sichuan ReneSola, ReneSola Jiangsu and ReneSola Shanghai have contributed 14%, 19%, 19% and 20% separately of the basic salaries of its employees to such plans. In addition, ReneSola Zhejiang, Sichuan ReneSola, ReneSola Jiangsu and ReneSola Shanghai are required by PRC law to contribute approximately 22%, 18%, 20.4% and 19.2% separately of the basic salaries of its employees for medical insurance benefits, housing funds, unemployment and other statutory benefits. Other than the contribution, there is no further obligation for payments to employees under these plans.

The total contribution was$15,451,989, $11,244,297and $10,592,227 for the years ended December 31, 2014, 2015 and 2016, respectively.

DISTRIBUTION OF PROFIT

12 Months Ended

Dec. 31, 2016

DISTRIBUTION OF PROFIT [Abstract]

DISTRIBUTION OF PROFIT

15. DISTRIBUTION OF PROFIT

As stipulated by the relevant laws and regulations applicable to China’s foreign investment enterprises, the Company’s PRC subsidiaries are required to make appropriations from net income as determined under accounting principles generally accepted in the PRC (“PRC GAAP”) to non-distributable reserves which include a general reserve, an enterprise expansion reserve and a staff welfare and bonus reserve. Wholly-owned PRC subsidiaries are not required to make appropriations to the enterprise expansion reserve but appropriations to the general reserve are required to be made at not less than 10% of the profit after tax as determined under PRC GAAP. The staff welfare and bonus reserve is determined by the board of directors.

The general reserve is used to offset future extraordinary losses. The subsidiary may, upon a resolution passed by the shareholder, convert the general reserve into capital. The staff welfare and bonus reserve is used for the collective welfare of the employees. The enterprise expansion reserve is for the expansion of ReneSola Zhejiang’s operations and can be converted to capital subject to approval by the relevant authorities. These reserves represent appropriations of the retained earnings determined in accordance with the Chinese law.

In addition to the general reserve, the Company’s PRC subsidiaries are required to obtain approval from the local PRC government prior to distributing any registered share capital. Accordingly, both the appropriations to general reserve and the registered share capital of the Company’s PRC subsidiaries are considered as restricted net assets amounting to $864,408,242 and $ 879,908,242 as of December 31, 2015 and 2016, respectively.

EARNINGS PER SHARE

12 Months Ended

Dec. 31, 2016

EARNINGS PER SHARE

EARNINGS PER SHARE

16. EARNINGS PER SHARE

Basic and diluted earnings per share have been calculated as follows:

	Years ended December 31,
	2014		2015		2016
Net loss attributed to holder of ordinary shares	$	(33,630,021)	$	(5,075,122)	$	(34,698,251)
Net loss adjusted for dilutive securities		(33,630,021)		(5,075,122)		(34,698,251)
Weighted-average number of common shares outstanding-basic		203,550,049		204,085,041		202,229,767
Weighted-average number of common shares outstanding-diluted		203,550,049		204,085,041		202,229,767
Basic loss per share	$	(0.17)	$	(0.02)	$	(0.17)
Diluted loss per share	$	(0.17)	$	(0.02)	$	(0.17)

Diluted earnings per share excludes 30,420,950, 18,356,267 and 16,585,000 common shares issuable upon the assumed conversion of the convertible debt, share options, restricted shares and warrant for the year ended December 31, 2014, 2015 and 2016, respectively, as their effect would have been anti-dilutive.

The Company issues ordinary shares to its share depository bank which will be used to settle stock option awards upon their exercise. Any ordinary shares not used in the settlement of stock option awards will be returned to the Company. As of December 31,2015 and 2016,there are 125,600 and 488,100 ordinary shares, respectively, are legally issued to the share depository bank but are treated as escrowed shares for accounting purposes and therefore, have been excluded from the computation of earnings per share.

RELATED PARTY BALANCES AND TRANSACTIONS

12 Months Ended

Dec. 31, 2016

RELATED PARTY BALANCES AND TRANSACTIONS

17. RELATED PARTY BALANCES AND TRANSACTIONS

(a) Related party balances

Amounts due from related parties are comprised of the following amounts receivable from the sales of goods:

	At December 31,
	2015		2016
Zhejiang Yuhuan⁽¹⁾	$	110,952	$	58,581
Jinko and its subsidiaries⁽²⁾		-		13,007,044
Total	$	110,952	$	13,065,625

Amounts due to related parties are comprised of the following amounts payable to the purchase of raw materials and others:

	At December 31,
	2015		2016
Zhejiang Yaohui⁽⁴⁾	$	2,552,385	$	1,162,849
Jinko and its subsidiaries ⁽²⁾		124,229		94,518
Total	$	2,676,614	$	1,257,367

(b) Related party transactions

During the years ended December 31, 2014, 2015 and 2016, related party transactions were as follows:

	Years ended December 31,
	2014		2015		2016
Sale of goods to Jinko and its subsidiaries⁽²⁾		2,898,698		53,538		40,171,544
Purchase of raw materials from Jinko and its subsidiaries ⁽²⁾		90,409		-		-
Purchase of raw materials from Zhejiang Yaohui⁽⁴⁾		5,759,079		4,581,029		2,280,835
Rental payment to Zhejiang Yuhuan⁽¹⁾		3,246		5,236		15,361
Rental expense incurred associated with using Zhejiang Yuhuan’s premises⁽¹⁾		70,107		67,566		62,349
Loan from Champion era enterprises limited⁽³⁾		4,000,000		3,000,000		-
Repayment to Champion era enterprises limited⁽³⁾		-		7,000,000		-

Mr. Xianshou Li and his family individually or jointly provided guarantees for the Company’s short term and long term borrowings totaling RMB2,060,000,000 ($318,008,380) and RMB 2,030,000,000 ($292,380,900) as of December 31, 2015 and 2016, respectively.

(1)

Zhejiang Yuhuan Solar Energy Source Co., Ltd. (“Zhejiang Yuhuan”) is controlled by Xianshou Li, Chief Executive Officer.

(2)

The brothers of Mr. Xianshou Li are the founders and current shareholders of Jinko Solar Co., Ltd. (“Jinko and its subsidiaries”)

(3)

Champion era enterprises Ltd. is controlled by Xianshou Li. The annualized interest rate of the loan is 5%, and the maturity of the loans are three months for the loans during the years ended December 31, 2015.

(4)

The brother of HR VP and shareholder of ReneSola Ltd is the director of Zhejiang Yaohui Photovoltaic Co., Ltd. (“Zhejiang Yaohui”)

COMMITMENTS AND CONTINGENCIES

12 Months Ended

Dec. 31, 2016

COMMITMENTS AND CONTINGENCIES [Abstract]

COMMITMENTS AND CONTINGENCIES

18. COMMITMENTS AND CONTINGENCIES

(a)Purchase commitments

Under the terms of certain supply agreements, the Company is required to purchase polysilicon of $ 32,797,550 in total over the next year, at prevailing market prices at the time of purchase. The quantities of raw materials governed by these contracts represent amounts the Company will utilize in the normal course of operations.

(b) Product warranties

The Company offers warranties on its products and records an estimate of the associated liabilities. Product warranty activity during the years ended December 31, 2015 and 2016 was as follows:

	At December 31,
	2015		2016

Beginning balance	$	31,778,365	$	36,023,946
Warranty provision		8,815,974		5,774,308
Revision of warranty costs		(3,249,623)		(4,429,833)
Warranty expense incurred		(18,132)		-
Foreign exchange effect		(1,302,638)		(2,309,448)
Ending balance	$	36,023,946	$	35,058,973

The Company revised downward the estimated cost to satisfy the Company’s outstanding product warranty by $4,429,833 for the year ended December 31, 2016, attributable primarily to decrease in the average selling prices (“ASPs”) for solar modules, a primary input into the estimated costs of the Company’s warranty policy.

(c) Legal matters

The Company is a party to legal matters and claims in the normal course of its operations. While the Company believes that the ultimate outcome of these matters will not have a material adverse effect on its financial position, results of operations or cash flows, the outcome of these matters is not determinable with certainty and negative outcomes may adversely affect the Company.

In June 2011, CEP Ltd., or CEP, one of the Company's module customers, sued the Company in the High Court in Hong Kong for damages for breach of a sales contract. The Company denied CEP’s assertion and defended that the termination of the sales contract was due to CEP’s material breach of the sales contract by failure to provide a letter of credit in accordance with the sales contract. A pre-trial set in October 2013 and a five-day trial set in December 2013 were held. On April 4, 2014, the High Court of Hong Kong handed down judgment and dismissed CEP’s case. Then CEP applied for the appeal and the trail was heard before the Court of Appeal on February 11, 2015. Eventually, the judgment was handed down on March 12, 2015, and the Court of Appeal dismissed the CEP's appeal.

In November 2013, Jiangsu Shuangliang Boiler Co., Ltd., or Jiangsu Shuangliang, one of the Company's suppliers of polysilicon equipment, filed a case with Shanghai International Economic and Trade Arbitration Commission, against Sichuan ReneSola. The arbitration involved a payment for deoxidization furnaces the Company bought from Jiangsu Shuangliang of approximately RMB55.7 million ($8.9 million), and a penalty of approximately RMB6.7 million ($1.1 million); and Sichuan ReneSola then filed a case to counterclaim against Jiangsu Shuangliang for the compensation of approximately RMB31.6 million ($5.2 million) in relation to the water leaking problems arising with the deoxidization furnaces Jiangsu Shuangliang sold to the Company. On June 30, 2015 Jiangsu Shuangliang and Sichuan ReneSola entered into a settlement agreement, in which the parties have agreed that Sichuan ReneSola shall pay RMB 36.5 million ($5.8 million) to Jiangsu Shuangliang as agreed amount of payment for purchase to settle the original aggregate purchase amount of RMB55.7 million ($8.9 million), and this amount shall be paid by six installments by the end of 2015. On July 14, 2015 the arbitral tribunal has rendered an arbitral award in accordance with the aforementioned settlement agreement. For the year ended December 31, 2015, the Company recorded the difference between RMB55.7 million ($8.9 million) and RMB36.5 million ($5.8 million) as other operating income.

In July 2015, the Company entered into an agreement with Pristine, a San Francisco-based solar project developer, to form a joint venture in the United States to accelerate U.S. project development. On December 3, 2015, ReneSola filed an Action in the Superior Court of California, County of San Francisco, alleging that Pristine had breached the joint venture agreement. Pristine subsequently filed a cross-complaint alleging that the Company breached the joint venture agreement. On March 25, 2016, the Company entered into a binding settlement term sheet with Pristine and certain of its affiliates to resolve the dispute, dismiss the Action and transfer 88 MW solar energy projects under development in California, North Carolina, and Minnesota by Pristine and its affiliates to one of the Company's wholly owned subsidiaries in the United States. The transfer was completed on May 31, 2016. The Company has become the 100% indirect owner of the 88 MW portfolio of solar energy projects since May 31, 2016.

(d) Countervailing and anti-dumping duties

The Company's subsidiary in the United Kingdom, or the UK, ReneSola UK Ltd., has received a decision and subsequently a post-clearance duty demand note from Her Majesty's Revenue and Customs, or HMRC, of the UK Government, which requires ReneSola to pay retrospective anti-dumping duty, or ADD, countervailing duty, or CVD, and value added tax of approximately £1.2 million (US$1.7 million) in total associated with certain imports of solar panels from Renesola Singapore PTE and Enfield Solar Energy Ltd India between December 2013 and February 2014. UK Customs disagreed with the Company's declared country of origin of these products. The Company is contesting the determination and have requested a review before HMRC. The final review decision of HMRC is expected to be announced in April or May 2017. The Company expects to appeal any adverse decision to the competent customs tribunal in the UK.

The Company's subsidiary in Germany, Renesola Deutschland GmbH, has received a post-clearance duty demand note from Dutch Customs, which requires ReneSola Deutschland GmbH to pay retrospective ADD and CVD of approximately €11.8 million (US$13.1 million) in total associated with certain imports of solar panels from its various Indian OEM suppliers in late 2013 and early 2014. Dutch Customs disagreed with the Company's declared country of origin of these imported products, and the Company has filed an administrative appeal with Dutch Customs and expect to receive a final decision by the end of April 2017. If Dutch Customs dismisses the appeal, the Company expect to ask for a judicial review by lodging a judicial appeal before the Dutch Court.

The Company is vigorously contesting the above two claims, and is currently unable to estimate the possibility of success or loss from its requests for review and/or appeal. The general statute of limitations to collect arrears of custom duties expires after three years from the date on which an import declaration was filed provided that no deliberate customs fraud possibly leading to criminal liability has been committed. As such and since the Company has not received any additional claims up to the date of this announcement, its products imported into the European Union before April 28, 2014 should not be subject to further duty demand by relevant customs. Moreover, the Company have fully exited from using OEMs from India, and made no further shipments to the European Union since the termination of its undertaking agreement to sell PV products at or above the Minimum Import Price in June 2015. However, any unfavorable outcome from these actions and disputes, including appeal of the outcome in these actions or disputes, may have a material adverse effect on the Company's financial position, results of operations or resources in the future.

(e) Guarantee

In March 2014, Renesola Zhejiang guaranteed loan facilities from China Development Bank for Zhejiang Ruixu of $26,573,535 for 11.5 years and $42,632,880 for 11.25 years. The fair value of the debt guarantee was not material.

SEGMENT REPORTING

12 Months Ended

Dec. 31, 2016

SEGMENT REPORTING [Abstract]

SEGMENT REPORTING

19. SEGMENT REPORTING

The Company operates in three principal reportable business segments: Wafer, Cell and module, and Solar power projects. The Wafer segment involves the manufacture and sales of monocrystalline and multicrystalline solar wafers and processing services. The Cell and module segment involves manufacture and sale of PV cells and modules, and service revenue from tolling arrangements. The solar power projects segment is a newly formed segment in year 2015 which involves solar power project development, EPC services and electricity revenue generation. Ancillary revenues and expenses and other unallocated costs and expenses are recorded in Other. Prior to 2015, electricity revenue generation was reported as "Other". The transactions between reportable segments relate to supplier contracts for the sales of wafers and modules. Prior year comparable information has been updated to reflect the new reportable segments.

The chief operating decision maker is the chief executive officer of the Company.

The Company only reports the segment information of net sales and gross profit, to conform to the information the chief operating decision maker receives to assess the financial performance and allocate resources. There are no differences between the measurements of the Company's reportable segment's gross profit and the Company's consolidated gross profit, as the Company uses the same profit measurement for all of the reportable segments and the consolidated entity. Furthermore, the Company's chief operating decision maker is not provided with asset information by segment. As such, no asset information by segment is presented.

The following table summarizes the Company’s revenues generated from each segment:

	Year ended December 31, 2014
	Wafer		Cell and module		Solar power projects		Other		Elimination		Total
Net sales	$	1,416,614,234	$	1,311,867,301	$	8,740,222	$	695,750	$	(1,176,420,479)	$	1,561,497,028
Gross profit	$	71,483,745	$	134,289,199	$	3,901,264	$	36,679	$	(427,602)	$	209,283,285

	Year ended December 31, 2015
	Wafer		Cell and module		Solar power projects		Other		Elimination		Total
Net sales	$	1,032,418,596	$	1,024,331,572	$	116,289,676	$	1,044,975	$	(892,053,374)	$	1,282,031,446
Gross profit	$	62,884,189	$	88,563,261	$	22,007,895	$	600,087	$	13,818,412	$	187,873,844

	Year ended December 31, 2016
	Wafer		Cell and module		Solar power projects		Other		Elimination		Total
Net sales		1,018,667,813		712,503,016		85,955,337		45,708,768		(932,998,645)		929,836,289
Gross profit		79,317,633		37,515,810		7,482,057		6,200,915		(21,020,333)		109,496,082

The following table summarizes the Company’s revenues generated from each product:

	Years ended December 31,
	2014		2015		2016
Solar modules	$	1,309,008,400	$	920,271,824	$	547,316,223
Solar wafers		182,513,034		163,700,069		223,606,146
Solar power project		-		110,737,934		83,107,906
Other materials		40,975,806		61,932,953		48,800,671
Solar cells		12,422,486		8,266,709		5,873,645
Electricity		8,740,222		5,649,282		2,847,431
Service revenue from tolling arrangement		7,837,080		11,472,675		18,284,267

Total	$	1,561,497,028	$	1,282,031,446	$	929,836,289

The following table summarizes the Company’s revenues generated by the geographic location of customers:

	Years ended December 31,
	2014		2015		2016
Mainland China	$	227,182,419	$	264,803,111	$	452,572,919
Taiwan		43,696,851		34,710,699		41,390,952
Australia		58,621,500		26,445,835		9,004,912
Singapore		10,506,110		23,478,282		28,060,571
Korea		21,120,646		8,765,334		7,342,063
India		51,256,611		135,768,107		117,189,159
Hong Kong		63,899		61,240		400,031
Thailand		-		7,767,452		3,121,450
Japan		369,369,451		298,855,541		80,639,530

Asia Pacific Total	$	781,817,487	$	800,655,601	$	739,721,587

Germany		147,261,159		53,603,098		3,612,885
Greece		310,076		103,193		-
Belgium		1,164,431		18,252,371		-
America		170,717,859		50,176,517		23,507,186
Italy		5,781,328		4,013,709		944,844
France		89,635,307		3,529,467		2,882,919
Spain		39,246,414		202,527		-
Czech Republic		2,628,333		4,861,462		-
England		224,990,352		242,425,493		81,761,719
Netherlands		3,234,732		4,706,979		-
South Africa		13,912,446		17,068,687		5,769,575
Others		80,797,104		82,432,342		71,635,574

Total	$	1,561,497,028	$	1,282,031,446	$	929,836,289

Substantially all of the Company’s long-lived assets are located in Mainland China.

There is no customer that contributed more than 10% of net sales for years ended December 31, 2014. Sales to one customer constitute approximately 11% of the total net sales for years ended December 31, 2015. As for year ended December 31, 2016, there is no customer that contributed more than 10% of net sales.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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+ Details

SUBSEQUENT EVENTS

12 Months Ended

Dec. 31, 2016

SUBSEQUENT EVENTS [Abstract]

SUBSEQUENT EVENTS

20. SUBSEQUENT EVENTS

Subsequent to December 31, 2016, the Company successfully rolled over $83.7 million short-term borrowings outstanding as of December 31, 2016.

On February 10, 2017, the Company changed the number of the Company's shares represented by each American Depositary Share ("ADS") from two (2) shares to ten (10) shares (the "Ratio Change").

Subsequent to December 31, 2016, the Company obtained related party loans of RMB 30 million ($4.3 million), with an annual interest rate of 5.44% and six months' borrowing period.

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS

12 Months Ended

Dec. 31, 2016

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS [Abstract]

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS

(Amounts expressed in U.S. dollars)

RENESOLA LTD

BALANCE SHEETS

	As of December 31,
	2015		2016
ASSETS
Current assets:
Cash and cash equivalents	$	10,181,328	$	22,143
Prepaid expenses and other current assets		257,933		357,822
Deferred convertible notes issue costs-current		34,660		-

Total current assets		10,473,921		379,965
Investment in subsidiaries		213,430,832		170,945,179
Total assets	$	223,904,753	$	171,325,144

LIABILITIES AND EQUITY
Current liabilities:
Amount due to subsidiaries	$	84,821,631	$	105,028,653
Other current liabilities		333,237		57,238
Warrant liabilities		577,500		-
Convertible notes payable-current		26,145,000		-

Total current liabilities		111,877,368		105,085,891
Income tax payable		93,473		93,473

Total liabilities		111,970,841		105,179,364

Equity:
Common shares (500,000,000 shares; no par value shares authorized at December 31, 2015 and 2016; 203,331,288shares issued and 203,205,688 shares outstanding at December 31, 2015; 202,478,702 shares issued and 200,538,902 shares outstanding at December 31, 2016)		477,964,702		477,171,487
Treasury stock		-		(513,137)
Additional paid-in capital		7,669,350		8,229,330
Accumulated loss		(435,276,897)		(469,975,148)
Accumulated other comprehensive income		61,576,757		51,233,248

Total equity		111,933,912		66,145,780

Total Liabilities and Equity	$	223,904,753	$	171,325,144

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS

(Amounts expressed in U.S. dollars except number of shares and per share data)

RENESOLA LTD

STATEMENTS OF INCOME

	Year ended December 31,
	2014		2015		2016
Operating expenses(income):
Sales and marketing		71,669		40,469		11,005
General and administrative		4,180,518		2,745,035		2,063,865
Research and development		9,189		-		-
Other operating income		(2,582,694)		-		-

Total operating expenses		1,678,682		2,785,504		2,074,870

Loss from operations		(1,678,682)		(2,785,504)		(2,074,870)
Non-operating income(expense):
Interest income		228		194		140
Interest expense		(5,631,282)		(3,361,077)		(1,285,370)
Foreign exchange gains (losses)		(26,628)		(76,586)		14,437
Gains on derivative, net		7,202,205		7,784,352		-
Gains on repurchase of convertible notes		7,048,188		13,693,269		212,056
Fair value change of warrant liability		7,455,000		1,312,500		577,500

Income(loss) before income taxes and equity in earnings of subsidiaries		14,295,000		16,505,835		(2,556,107)
Income tax benefit		-		-		-
Equity in losses of subsidiaries		(47,999,050)		(21,642,270)		(32,142,144)

Net loss	$	(33,630,021)	$	(5,075,122)	$	(34,698,251)

STATEMENTS OF COMPREHENSIVE LOSS

(Amounts expressed in U.S. dollars)

	Year ended December 31,
	2014		2015		2016
Net loss	$	(33,630,021)	$	(5,075,122)	$	(34,698,251)

Other comprehensive loss:
Foreign currency translation adjustment		(2,533,628)		(19,503,275)		(10,343,509)

Other comprehensive loss		(2,533,628)		(19,503,275)		(10,343,509)

Comprehensive loss	$	(36,163,649)	$	(24,578,397)	$	(45,041,760)

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS

(Amounts expressed in U.S. dollars)

RENESOLA LTD

STATEMENTS OF CASH FLOWS

	Year ended December 31,
	2014		2015		2016
Net loss	$	(33,630,021)	$	(5,075,122)	$	(34,698,251)
Equity in losses of subsidiaries		47,999,050		21,642,270		32,142,144
Adjustments to reconcile net income to net cash used in operating activities:
Amortization of deferred convertible notes issue costs and premium		933,152		764,527		32,935
Gains from repurchase of convertible bond		(7,048,188)		(13,693,269)		(212,056)
Share-based compensation		2,166,097		1,466,181		746,980
Gains on derivatives		(7,202,205)		(7,784,352)		-
Fair value change of warrant liability		(7,455,000)		(1,312,500)		(577,500)
Changes in assets and liabilities :
Other long-term assets		(158,952)		-		-
Prepaid expenses and other current assets		313,310		(257,933)		(99,889)
Other current liabilities		(536,417)		(1,067,521)		(275,999)
Other long-term liabilities		(2,582,694)		-		-

Net cash used in operating activities		(7,201,868)		(5,317,719)		(2,941,636)

Investing activities:
Investment in subsidiaries		(15,623)		(33,783)		-
Net cash received from settlement of derivatives		4,960,574		9,078,226		-

Net cash provided by (used in) investing activities		4,944,951		9,044,443		-

Financing activities:
Proceeds from exercise of share option		362,801		640,680		-
Cash paid for repurchase of convertible notes		(9,809,860)		(54,376,600)		(25,931,219)
Cash paid for ADS repurchase		-		(812,184)		(1,493,352)
Receipt of loan from subsidiaries		11,999,596		59,675,011		20,207,022

Net cash provided by (used in)financing activities		2,552,537		5,126,907		(7,217,549)

Net (decrease) increase in cash and cash equivalents		295,620		8,853,631		(10,159,185)
Cash and cash equivalents, beginning of year	$	1,032,077	$	1,327,697	$	10,181,328
Cash and cash equivalents, end of year	$	1,327,697	$	10,181,328	$	22,143

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS

(Amounts expressed in U.S. dollars, unless otherwise stated)

Note to Schedule 1

Schedule I has been provided pursuant to the requirements of Rule 12-04(a) and 5-04(c) of Regulation S-X, which require condensed financial information as to the financial position, changes in financial position and results of operations of a parent company as of the same dates and for the same periods for which audited consolidated financial statements have been presented when the restricted net assets of consolidated subsidiaries exceed 25 percent of consolidated net assets as of the end of the most recently completed fiscal year. The condensed financial information has been prepared using the same accounting policies as set out in the accompanying consolidated financial statements except that the equity method has been used to account for investments in its subsidiaries.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted. The footnote disclosure certain supplemental information relating to the operations of the Company and, as such, these statements should be read in conjunction with the notes to the accompanying Consolidated Financial Statements.

- Definition

The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.

+ References + Details

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2016

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES [Abstract]

Basis of presentation

(a) Basis of presentation

The consolidated financial statements have been prepared and presented in accordance with accounting principles generally accepted in the United States of America (“US GAAP”).

The following factors raise substantial doubt about the Company's ability to continue as a going concern for the foreseeable future.

For the year ended December 31, 2016, the Company incurred a net loss of $34,698,251.

These factors are mitigated by the following plans and actions:

Basis of consolidation

(b) Basis of consolidation

Fair value measurement

(c) Fair value measurement

Use of estimates

(d) Use of estimates

Cash and cash equivalents

(e) Cash and cash equivalents

Restricted cash

(f) Restricted cash

Inventories

(g) Inventories

Project assets and deferred project costs

(h) Project assets and deferred project costs

Investments

(i) Investments

Advances to suppliers and advances for purchase of property, plant and equipment

(j) Advances to suppliers and advances for purchase of property, plant and equipment

As of December 31, 2015 and 2016, advances to suppliers in excess of 10% of total advances to suppliers are as follows:

	At December 31,
	2015		2016
Supplier A	$	6,400,000	$	1,614,677
Supplier B	$	1,070,954	$	1,458,913

As of December 31, 2015 and 2016, advances for purchases of property, plant and equipment in excess of 10% of total advances and prepayments to equipment suppliers are as follows:

	At December 31,
	2015		2016
Supplier A	$	71,783	$	236,929
Supplier B	$	66,689		-

Property, plant and equipment

(k) Property, plant and equipment

Property, plant and equipment are stated at cost less accumulated depreciation and impairment. Depreciation is computed on a straight-line basis over the following estimated useful lives:

Buildings	40-50 years
Leasehold improvement	10-25 years
Plant and machinery	10-25 years
Motor vehicles	4-5 years
Office equipment	3-5 years
Solar power projects	25 years

Assets held-for-sale

(l) Assets held-for-sale

The company's assets held for sale are summarized below:

	At December 31, 2015		At December 31, 2016
Property, plant and equipment, net	$	3,530,744	$	6,638,018
Prepaid land use right, net	$	710,134	$	920,200
Total	$	4,240,878	$	7,558,218

Interest capitalization

(m) Interest capitalization

Prepaid land use right

(n) Prepaid land use right

Prepaid land use right represent payments made to obtain land use rights. Prepaid land use right is recognized as an expense on a straight-line basis over the lease period of 40-50 years.

Expenses recognized were $779,703, $910,157 and $815,236 for the years ended December 31, 2014, 2015 and 2016, respectively.

Impairment of long-lived assets

(o) Impairment of long-lived assets

The impairment losses of long-lived assets were $nil, $nil and $ 4,624,979 for the years ended December 31, 2014, 2015 and 2016 respectively (see Note 6).

Deferred convertible notes issuance costs

(p) Deferred convertible notes issuance costs

Contingencies

(q) Contingencies

Income taxes

(r) Income taxes

Revenue recognition

(s) Revenue recognition

Solar power products

Solar power projects

The Company has recognized $nil, $110,737,934 and $83,107,906 from sales of project assets for the years ended December 31, 2014, 2015 and 2016, respectively

Deferred project revenue

(t) Deferred project revenue

Cost of revenues

(u) Cost of revenues

Research and development

(v) Research and development

Warranty expenses

(w) Warranty expenses

Government grants

(x) Government grants

Other operating expense (income)

(y) Other operating expense (income)

Foreign currency

(z) Foreign currency

Fair value of financial instruments

(aa) Fair value of financial instruments

Derivative financial instruments

(ab) Derivative financial instruments

Earnings (loss) per share

(ac) Earnings (loss) per share

Share-based compensation

(ad) Share-based compensation

Comprehensive income (loss)

(ae) Comprehensive income (loss)

Treasury Stock

(af) Treasury Stock

In September 2016, the Company's Board of Directors decided to extend the share repurchase program for another 12 months ending September 2017.

Concentrations of credit risk

(ag) Concentrations of credit risk

Recently issued accounting pronouncements

(ah) Recently issued accounting pronouncements

ORGANIZATION AND NATURE OF OPERATIONS (Tables)

12 Months Ended

Dec. 31, 2016

ORGANIZATION AND NATURE OF OPERATIONS [Abstract]

Schedule showing list of all subsidiaries

Subsidiaries

Date of

acquisition

Date of

incorporation

Place of

incorporation

Date of

commencement

Percentage of

ownership

ReneSola Zhejiang Ltd.
formerly known as ZhejiangYuhui Solar Energy Source Co., Ltd. (“ReneSola Zhejiang”)

N/A

August 7, 2003

People’s Republic of China (“PRC”)

July, 2005

100

ReneSola America Inc.
(“ReneSola America”)

N/A

November 12, 2006

United States of America

November, 2006

100

ReneSola Singapore Pte Ltd.
(“ReneSola Singapore”)

N/A

March 28, 2007

Singapore

May, 2007

100

Sichuan ReneSola Silicon Material Co., Ltd.
(“Sichuan ReneSola”)

N/A

August 25, 2007

PRC

July, 2009

100

ReneSola Jiangsu Ltd.
(“ReneSola Jiangsu”)

May 31, 2009

November 8, 2005

PRC

May 31, 2009

100

Zhejiang ReneSola System Integration Ltd. Formerly known as Zhejiang ReneSola Photovoltaic Materials Co., Ltd.
(“Zhejiang ReneSola PV Materials”)

N/A

April 30,2010

PRC

January, 2011

100

Sichuan Ruiyu New Materials Technology Co., Ltd.
(“Sichuan Ruiyu”)

N/A

August 24,2010

PRC

July, 2011

100

Sichuan Ruixin Photovoltaic Materials Co., Ltd.
(“Sichuan Ruixin”)

N/A

November 23, 2010

PRC

N/A*

100

Sichuan SiLiDe Composite Materials Co., Ltd.
(“Sichuan SiLiDe”)

N/A

July 11, 2011

PRC

N/A*

100

ReneSola Deutschland GmbH
(“ReneSola Germany”)

N/A

September26, 2011

Germany

August, 2012

100

ReneSola New Energy S.A.R.L
(“ReneSola New Energy”)

N/A

March 28, 2012

Luxemburg

N/A*

100

ReneSola Australia PTY LTD
(“ReneSola Australia”)

N/A

July 30, 2012

Australia

November, 2012

100

ReneSola Japan Ltd.
(“ReneSola Japan”)

N/A

July 9, 2012

Japan

November, 2012

100

LUCAS EST S.R.L
(“LUCAS”).

September 13, 2012

December 17, 2008

Romania

January, 2014

100

ECOSFER ENERGY S.R.L
(“ECOSFER”).

September 26, 2012

November 17, 2011

Romania

January, 2014

100

ReneSola India Private Limited
(“ReneSola India”)

N/A

November 22, 2012

India

December, 2012

100

Lucas Est Korea Co., Ltd
(“Lucas Korea”)

N/A

March 12, 2013

Korea

N/A*

100

Subsidiaries

Date of

acquisition

Date of

incorporation

Place of

incorporation

Date of

commencement

Percentage of

ownership

Ecosfer Energy Korea Co., Ltd
(“Ecosfer Korea”)

N/A

March 12, 2013

Korea

N/A*

100

ReneSola UK Limited
(“ReneSola UK”)

N/A

April 11, 2013

July, 2013

100

ReneSola Shanghai Ltd
(“ReneSola Shanghai”)

N/A

May 30, 2013

PRC

October, 2013

100

ReneSola South Africa Proprietary Limited
(“ReneSola South Africa”)

N/A

July 6, 2013

South Africa

February, 2014

100

ReneSola Panama Inc.
(“ReneSola Panama”)

N/A

December 28, 2013

Panama

March, 2014

100

ReneSola France SAS
(“ReneSola France”)

N/A

February 7, 2014

France

July, 2014

100

ReneSola Italy S.R.L.
(“ReneSola Italy”)

N/A

March 28, 2014

Italy

June, 2014

100

ReneSola(Thailand) Inc.
(“ReneSola Thailand”)

N/A

February 24, 2014

Thailand

February, 2015

100

RENESOLA MEXICO,S,de R.L de C.V.
(“ReneSola Mexico”)

N/A

April 10, 2014

Mexico

July, 2014

100

RENESOLA TURKEY GüNES ENERJISI TEKNOLOJI HIZMETLERI VE TICARET L
(“ReneSola Turkey”)

N/A

April 22, 2014

Turkey

August, 2014

100

PT. ReneSola Clean Energy
(“ReneSola Indonesia”)

N/A

May 14, 2014

Indonesia

February, 2015

100

RENESOLA DO BRASIL COMERCIO E REPRENTACAO LTDA
(“ReneSola Brazil”)

N/A

May 12, 2014

Brazil

December, 2015

100

RENESOLA ENGINEERING INTERNATIONAL GMBH
(“ReneSola Austria”)

N/A

July 22, 2014

Austria

December, 2014

100

RENESOLA Canada Limited
(“ReneSola Canada")

N/A

June 23, 2014

Canada

December, 2014

100

ReneSola Investment Management Ltd
("ReneSola Investment")

N/A

December 2, 2014

British Virgin Island

July, 2015

100

Renesola Energy, INC.

N/A

December 22, 2014

United States

September, 2015

100

Renesola Power, Inc. ("Renesola Power")

N/A

July 23, 2015

United States

September, 2016

100

Renesola UK Rooftop Limited ("Renesola UK Rooftop")

N/A

August 6, 2015

April, 2016

100

Baynergy, LLC ("Baynergy")

N/A

July 8, 2015

United States

April, 2016

100

Renesola Shaoxing Ltd

N/A

March 9, 2016

PRC

April, 2016

100

Renesola Pan'an Ltd

N/A

March 28, 2016

PRC

April, 2016

100

ReneSola Power Holdings LLC.

N/A

May 19, 2016

United States

September, 2016

100

RSE Land Holdings, LLC.

N/A

December 12, 2016

United States

N/A*

100

*: These companies had not commenced operations as of December 31, 2016.

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2016

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES [Abstract]

Schedule of property, plant and equipment stated at cost less accumulated depreciation

Buildings	40-50 years
Leasehold improvement	10-25 years
Plant and machinery	10-25 years
Motor vehicles	4-5 years
Office equipment	3-5 years
Solar power projects	25 years

Summary of company's assets held for sale

	At December 31, 2015		At December 31,2016
Property, plant and equipment, net	$	3,530,744	$	6,638,018
Prepaid land use right, net	$	710,134	$	920,200
Total	$	4,240,878	$	7,558,218

Largest prepayments made to individual suppliers [Member] | Suppliers concentration risk [Member]

Concentration Risk [Line Items]

Schedule of concentration risk

	At December 31,
	2015		2016
Supplier A	$	6,400,000	$	1,614,677
Supplier B	$	1,070,954	$	1,458,913

Advances and prepayments to equipment suppliers [Member] | Suppliers concentration risk [Member]

Concentration Risk [Line Items]

Schedule of concentration risk

	At December 31,
		2015		2016
Supplier A		$	71,783	$	236,929
Supplier B		$	66,689		-

ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES (Tables)

12 Months Ended

Dec. 31, 2016

Allowances for accounts receivable [Member]

ALLOWANCE [Line Items]

Schedule of allowances

	At December 31,
	2014		2015		2016
Beginning of the year	$	4,869,942	$	7,638,434	$	5,152,466
Allowances made during the year		9,526,878		2,516,554		1,540,047
Reversals made during the year		(4,090,855)		(2,943,154)		(2,401,464)
Write off		(2,371,420)		(1,847,631)		(1,493)
Foreign exchange effect		(296,111)		(211,737)		(208,053)
Closing balance	$	7,638,434	$	5,152,466	$	4,081,503

Allowances for other receivables [Member]

ALLOWANCE [Line Items]

Schedule of allowances

	At December 31,
	2014		2015		2016
Beginning of the year	$	8,904,534	$	9,130,804	$	8,882,559
Allowances(reversal) made during the year		234,898		(226,533)		1,273,437
Foreign exchange effect		(8,628)		(21,712)		(67,125)
Closing balance	$	9,130,804	$	8,882,559	$	10,088,871

Allowances for advances for purchases of property, plant and equipment [Member]

ALLOWANCE [Line Items]

Schedule of allowances

	At December 31,
	2014		2015		2016
Beginning of the year	$	1,306,139	$	1,286,046	$	1,960,329
Allowances made during the year		12,983		769,367		30,811
Write off		-		-		(350)
Foreign exchange effect		(33,076)		(95,084)		(149,647)

Closing balance	$	1,286,046	$	1,960,329	$	1,841,143

Allowances for advances to suppliers [Member]

ALLOWANCE [Line Items]

Schedule of allowances

	At December 31,
	2014		2015		2016
Beginning of the year	$	4,442,627	$	4,459,487	$	4,441,461
Allowances made during the year		26,263		1,286		1,550,615
Write-off		-		(49)		-
Foreign exchange effect		(9,403)		(19,263)		(195,396)
Closing balance	$	4,459,487	$	4,441,461	$	5,796,680

INVENTORIES (Tables)

12 Months Ended

Dec. 31, 2016

INVENTORIES [Abstract]

Schedule of inventories

	At December 31,
	2015		2016
Raw materials	$	44,208,096	$	21,112,892
Work-in-process		27,302,298		27,941,926
Finished goods		121,660,725		94,921,237
Total inventories	$	193,171,119	$	143,976,055

PROJECT ASSETS AND DEFERRED PROJECT COSTS (Tables)

12 Months Ended

Dec. 31, 2016

PROJECT ASSETS AND DEFERRED PROJECT COSTS [Abstract]

Schedule of project assets and deferred project costs

	At December 31,
	2015		2016
Project assets - Module cost	$	1,923,114	$	6,822,294
Project assets - Development		13,495,278		42,615,862
Project assets - Others		4,795,230		5,449,251
Total project assets	$	20,213,622	$	54,887,407

Current portion		20,213,622		48,177,416
Non-current portion		-		6,709,991

Total deferred project costs	$	20,874,446	$	16,374,899

Current portion		-		-
Noncurrent portion		20,874,446		16,374,899

Total project assets and deferred project costs	$	41,088,068	$	71,262,306

PROPERTY, PLANT AND EQUIPMENT, NET (Tables)

12 Months Ended

Dec. 31, 2016

PROPERTY, PLANT AND EQUIPMENT, NET [Abstract]

Schedule of property, plant and equipment. net

	At December 31,
	2015		2016
Buildings	$	218,144,388	$	206,408,397
Leasehold improvement		129,294		129,294
Plant and machinery		793,331,294		722,238,300
Motor vehicles		2,442,337		2,258,912
Office equipment		11,893,297		12,998,049
Power stations		36,737,149		23,170,604

		1,062,677,759		967,203,556
Less: Accumulated depreciation		441,165,827		483,716,135

		621,511,932		483,487,421
Construction in progress		8,950,138		7,767,791

Property, plant and equipment, net	$	630,462,070	$	491,255,212

FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2016

FAIR VALUE MEASUREMENTS [Abstract]

Schedule of assets and liabilities measured on the Company's consolidated balance sheet at fair value on a recurring basis subsequent to initial recognition

As of December 31, 2016

Fair Value Measurements at Reporting Date Using

Quoted Prices

Total Fair

in Active

Significant

Value and

Markets for

Other

Significant

Carrying

Identical

Observable

Unobservable

Value on the

Assets

Inputs

Balance Sheet

(Level 1)

(Level 2)

(Level 3)

Cross currency forward exchange contracts -recorded as derivative assets

2,715,736

Warrant liability

As of December 31, 2015

Fair Value Measurements at Reporting Date Using

Quoted Prices

Total Fair

in Active

Significant

Value and

Markets for

Other

Significant

Carrying

Identical

Observable

Unobservable

Value on the

Assets

Inputs

Balance Sheet

(Level 1)

(Level 2)

(Level 3)

Cross currency forward exchange contracts -recorded as derivative assets

56,253

Cross currency forward exchange contracts -recorded as derivative liabilities

(29,519)

Warrant liability

(577,500)

INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2016

INCOME TAXES [Abstract]

Schedule of Components of Tax Benefit (Expense)

	Years ended December 31,
	2014		2015		2016
Income (Loss) before income tax
PRC	$	(2,748,982)	$	22,416,826	$	26,560,892
Other jurisdictions		(31,234,691)		(26,818,332)		(58,965,544)
Total		(33,983,673)		(4,401,506)		(32,404,652)
Current tax benefit (expense)
PRC	$	-	$	-	$	(2,412,560)
Other jurisdictions		256,071		(218,556)		(251,202)
Subtotal		256,071		(218,556)		(2,663,762)
Deferred tax benefit (expense)
PRC	$	(4,595,374)	$	97,189	$	(611,029)
Other jurisdictions		4,689,183		(552,249)		981,192
Subtotal		93,809		(455,060)		370,163
Total income tax benefit (expense)	$	349,880	$	(673,616)	$	(2,293,599)

Schedule of Principal Components of Deferred Income Tax Assets and Liabilities

	At December 31,
	2015		2016
Deferred tax assets:
Property, plant and equipment	$	373,994	$	998,093
Inventories provision		452,362		700,182
Tax losses		81,552,073		89,148,913
Contingent liabilities		843,219		264,806
Bad debts provision		1,603,589		1,793,593
Deferred subsidies		4,123,916		3,750,258
Impairment for long-lived assets		43,366,347		40,808,679
Warranty provision		8,925,955		8,435,581
Silicon income		262,383		-
Others		1,557,477		465,334
Total gross deferred tax assets	$	143,061,315	$	146,365,439
Valuation allowance on deferred tax assets		(126,550,971)		(130,567,941)
Net deferred tax assets	$	16,510,344	$	15,797,498
Analysis as
Current	$	5,988,646	$	-
Non-current		10,521,698		15,797,498
	$	16,510,344	$	15,797,498
Deferred tax liabilities:
Prepaid land use right	$	283,980	$	258,556
Total deferred tax liabilities	$	283,980	$	258,556
Analysis as:
Current	$	-	$	-
Non-current		283,980		258,556
	$	283,980	$	258,556

Schedule of Reconciliation Between the Applicable Statutory Income Tax Rate and the Company's Effective Tax Rate

	Years ended December 31,
	2014			2015			2016
PRC applicable income tax rate		25.0	%		25.0	%		25.0	%
Effect of Tax holiday - HNTE		11.3	%		-			1.1	%
Effect of Tax holiday - non-taxable income		0.8	%		-			-
Valuation allowance		(36.1)	%		(142.3)	%		(29.9)	%
Expiration of tax loss		(14.0)	%		-			(3.8)	%
Effect of different tax rate of subsidiaries		13.5	%		113.9	%		(4.1)	%
Effect of future tax rate change		-			20.9	%		10.3	%
Non-deductible expense		(7.3)	%		(65.4)	%		(5.6)	%
R&D super deduction		8.4	%		44.3	%		3.7	%
Land value-added tax		-			-			(3.7)	%
Others		(0.6)	%		(11.7)	%		(0.1)	%
Effective income tax rate		1.0	%		(15.3)	%		(7.1)	%

Schedule of Aggregate Amount and Per Share Effect of the Tax Holiday

	Years ended December 31,
	2014		2015		2016
Aggregate	$	4,081,529	$	-	$	93,403
Per share effect -basic	$	0.02	$	-	$	-
Per share effect-diluted	$	0.02	$	-	$	-

BORROWINGS (Tables)

12 Months Ended

Dec. 31, 2016

BORROWINGS [Abstract]

Schedule of bank borrowings

	At December 31,
	2015		2016
Short-term	$	667,682,811	$	595,433,960
Long-term, current portion		1,104,735		-
Subtotal		668,787,546		595,433,960
Long-term		38,776,693		28,835,700
	$	707,564,239	$	624,269,660

Schedule of future principal repayment on the long-term bank loans

2020 and after

28,835,700

OTHER CURRENT LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2016

OTHER CURRENT LIABILITIES [Abstract]

Schedule of Other Current Liabilities

	At December 31,
	2015		2016
Payable for purchase of property, plant and equipment	$	33,529,239	$	21,959,267
Other payables		43,709,026		40,165,675
	$	77,238,265	$	62,124,942

WARRANT LIBILITY (Tables)

12 Months Ended

Dec. 31, 2016

WARRANT LIBILITY [Abstract]

Schedule of Assumptions Used to Estimate Fair Value of Warrants Using the Monte Carlo Simulation

	As September16,			As December 31,			As December 31,
	2014			2015			2016
Stock price	$	7.05		$	8.50		$	3.20
Exercise price	$	30.2		$	30.2		$	30.2
Annual dividend yield		-	%		-	%		-	%
Time to maturity		2.7			1.7			0.7
Risk-free interest rate		0.96	%		0.93	%		0.70	%
Expected volatility		83.0	%		67.2	%		42.9	%

Reconciliation of the Beginning and Ending Balances of Warrants Liability Measured at Fair Value on a Recurring Basis Using Level 2 Inputs

	As December 31,
	2016
Beginning balance	$	577,500
Warrants issued		-
Fair value change of the issued warrants included in earnings		(577,500)
Ending balance	$	-

SHARE BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2016

SHARE BASED COMPENSATION [Abstract]

Schedule of assumptions used to estimate the fair value of the options

			Weighted average
	Average risk-free		expected option			Dividend
	rate of return		life	Volatility rate		yield
Granted in 2014		1.63-1.76%	4.5 years		169.77-173.01%		0	%
Granted in 2015		1.36-1.76%	3.2 years		140.01-146.02%		0	%
Granted in 2016		1.00-1.52%	3.2 years		119.83-146.29%		0	%

Summary of the option activity

					Weighted
			Weighted		Average		Aggregate
	Number of		Average		Remaining		Intrinsic
	Options		Exercise Prices		Contractual Life		Value
Options
Outstanding on January 1, 2016		5,947,000		0.74		2.14		-
Granted		825,000		0.74				-
Exercised		-		-
Forfeited		(687,000)		0.74

Outstanding on December 31, 2016		6,085,000		0.74		1.75		-

Vested or expected to vest at December 31, 2016		5,966,260		0.74		1.48		-

Exercisable at December 31, 2016		3,313,600		0.74		0.67		-

Schedule of summary of the RSUs

			Weighted
	Number of		Average
	shares			Grant Date Fair Value
RSUs
Unvested on January 1, 2016		137,500		1.36
Granted		280,000		0.63

Vested		(137,500)		1.36
Unvested on December 31, 2016		280,000		0.63

EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2016

EARNINGS PER SHARE

Schedule of basic and diluted earnings per share

	Years ended December 31,
	2014		2015		2016
Net loss attributed to holder of ordinary shares	$	(33,630,021)	$	(5,075,122)	$	(34,698,251)
Net loss adjusted for dilutive securities		(33,630,021)		(5,075,122)		(34,698,251)
Weighted-average number of common shares outstanding-basic		203,550,049		204,085,041		202,229,767
Weighted-average number of common shares outstanding-diluted		203,550,049		204,085,041		202,229,767
Basic loss per share	$	(0.17)	$	(0.02)	$	(0.17)
Diluted loss per share	$	(0.17)	$	(0.02)	$	(0.17)

RELATED PARTY BALANCES AND TRANSACTIONS (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of amounts due from related parties comprised of amounts receivable from the sales of goods

	At December 31,
	2015		2016
Zhejiang Yuhuan⁽¹⁾	$	110,952	$	58,581
Jinko and its subsidiaries⁽²⁾		-		13,007,044
Total	$	110,952	$	13,065,625

Schedule of amounts due to related parties comprised of amounts payable to purchase of raw materials and others

	At December 31,
	2015		2016
Zhejiang Yaohui⁽⁴⁾	$	2,552,385	$	1,162,849
Jinko and its subsidiaries ⁽²⁾		124,229		94,518
Total	$	2,676,614	$	1,257,367

Schedule of related party transactions

	Years ended December 31,
	2014		2015		2016
Sale of goods to Jinko and its subsidiaries⁽²⁾		2,898,698		53,538		40,171,544
Purchase of raw materials from Jinko and its subsidiaries ⁽²⁾		90,409		-		-
Purchase of raw materials from Zhejiang Yaohui⁽⁴⁾		5,759,079		4,581,029		2,280,835
Rental payment to Zhejiang Yuhuan⁽¹⁾		3,246		5,236		15,361
Rental expense incurred associated with using Zhejiang Yuhuan’s premises⁽¹⁾		70,107		67,566		62,349
Loan from Champion era enterprises limited⁽³⁾		4,000,000		3,000,000		-
Repayment to Champion era enterprises limited⁽³⁾		-		7,000,000		-

(1)

Zhejiang Yuhuan Solar Energy Source Co., Ltd. (“Zhejiang Yuhuan”) is controlled by Xianshou Li, Chief Executive Officer.

(2)

The brothers of Mr. Xianshou Li are the founders and current shareholders of Jinko Solar Co., Ltd. (“Jinko and its subsidiaries”)

(3)

(4)

The brother of HR VP and shareholder of ReneSola Ltd is the director of Zhejiang Yaohui Photovoltaic Co., Ltd. (“Zhejiang Yaohui”)

COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2016

COMMITMENTS AND CONTINGENCIES [Abstract]

Schedule of product warranty activity

	At December 31,
	2015		2016

Beginning balance	$	31,778,365	$	36,023,946
Warranty provision		8,815,974		5,774,308
Revision of warranty costs		(3,249,623)		(4,429,833)
Warranty expense incurred		(18,132)		-
Foreign exchange effect		(1,302,638)		(2,309,448)
Ending balance	$	36,023,946	$	35,058,973

SEGMENT REPORTING (Tables)

12 Months Ended

Dec. 31, 2016

SEGMENT REPORTING [Abstract]

Schedule of the Company's revenues generated from each segment

	Year ended December 31, 2014
	Wafer		Cell and module		Solar power projects		Other		Elimination		Total
Net sales	$	1,416,614,234	$	1,311,867,301	$	8,740,222	$	695,750	$	(1,176,420,479)	$	1,561,497,028
Gross profit	$	71,483,745	$	134,289,199	$	3,901,264	$	36,679	$	(427,602)	$	209,283,285

	Year ended December 31, 2015
	Wafer		Cell and module		Solar power projects		Other		Elimination		Total
Net sales	$	1,032,418,596	$	1,024,331,572	$	116,289,676	$	1,044,975	$	(892,053,374)	$	1,282,031,446
Gross profit	$	62,884,189	$	88,563,261	$	22,007,895	$	600,087	$	13,818,412	$	187,873,844

	Year ended December 31, 2016
	Wafer		Cell and module		Solar power projects		Other		Elimination		Total
Net sales		1,018,667,813		712,503,016		85,955,337		45,708,768		(932,998,645)		929,836,289
Gross profit		79,317,633		37,515,810		7,482,057		6,200,915		(21,020,333)		109,496,082

Schedule of the Company's revenues generated from each product

	Years ended December 31,
	2014		2015		2016
Solar modules	$	1,309,008,400	$	920,271,824	$	547,316,223
Solar wafers		182,513,034		163,700,069		223,606,146
Solar power project		-		110,737,934		83,107,906
Other materials		40,975,806		61,932,953		48,800,671
Solar cells		12,422,486		8,266,709		5,873,645
Electricity		8,740,222		5,649,282		2,847,431
Service revenue from tolling arrangement		7,837,080		11,472,675		18,284,267

Total	$	1,561,497,028	$	1,282,031,446	$	929,836,289

Schedule of the Company's revenues generated by geographic location of customers

	Years ended December 31,
	2014		2015		2016
Mainland China	$	227,182,419	$	264,803,111	$	452,572,919
Taiwan		43,696,851		34,710,699		41,390,952
Australia		58,621,500		26,445,835		9,004,912
Singapore		10,506,110		23,478,282		28,060,571
Korea		21,120,646		8,765,334		7,342,063
India		51,256,611		135,768,107		117,189,159
Hong Kong		63,899		61,240		400,031
Thailand		-		7,767,452		3,121,450
Japan		369,369,451		298,855,541		80,639,530

Asia Pacific Total	$	781,817,487	$	800,655,601	$	739,721,587

Germany		147,261,159		53,603,098		3,612,885
Greece		310,076		103,193		-
Belgium		1,164,431		18,252,371		-
America		170,717,859		50,176,517		23,507,186
Italy		5,781,328		4,013,709		944,844
France		89,635,307		3,529,467		2,882,919
Spain		39,246,414		202,527		-
Czech Republic		2,628,333		4,861,462		-
England		224,990,352		242,425,493		81,761,719
Netherlands		3,234,732		4,706,979		-
South Africa		13,912,446		17,068,687		5,769,575
Others		80,797,104		82,432,342		71,635,574

Total	$	1,561,497,028	$	1,282,031,446	$	929,836,289

ORGANIZATION AND NATURE OF OPERATIONS (Details)	12 Months Ended
ORGANIZATION AND NATURE OF OPERATIONS (Details)	Dec. 31, 2016	May 31, 2016
List of all subsidiaries [Line Items]
Percentage of ownership		100.00%
ReneSola Zhejiang Ltd. formerly known as ZhejiangYuhui Solar Energy Source Co., Ltd. ("ReneSolaZhejiang")
List of all subsidiaries [Line Items]
Date of incorporation	Aug. 07, 2003
Place of incorporation	People’s Republic of China (“PRC”)
Date of commencement	Jul. 01, 2005
Percentage of ownership	100.00%
ReneSola America Inc. ("ReneSola America")
List of all subsidiaries [Line Items]
Date of incorporation	Nov. 12, 2006
Place of incorporation	United States of America
Date of commencement	Nov. 01, 2006
Percentage of ownership	100.00%
ReneSola Singapore Pte Ltd. ("ReneSola Singapore")
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 28, 2007
Place of incorporation	Singapore
Date of commencement	May 01, 2007
Percentage of ownership	100.00%
Sichuan ReneSola Silicon Material Co., Ltd. ("Sichuan ReneSola")
List of all subsidiaries [Line Items]
Date of incorporation	Aug. 25, 2007
Place of incorporation	PRC
Date of commencement	Jul. 01, 2009
Percentage of ownership	100.00%
ReneSola Jiangsu Ltd. ("ReneSola Jiangsu")
List of all subsidiaries [Line Items]
Date of acquisition	May 31, 2009
Date of incorporation	Nov. 08, 2005
Place of incorporation	PRC
Date of commencement	May 31, 2009
Percentage of ownership	100.00%
Zhejiang ReneSola System Integration Ltd. formerly known as Zhejiang ReneSola Photovoltaic Materials Co., Ltd. ("Zhejiang ReneSolaPV Materials")
List of all subsidiaries [Line Items]
Date of incorporation	Apr. 30, 2010
Place of incorporation	PRC
Date of commencement	Jan. 01, 2011
Percentage of ownership	100.00%
Sichuan Ruiyu New Materials Technology Co., Ltd. ("Sichuan Ruiyu") [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Aug. 24, 2010
Place of incorporation	PRC
Date of commencement	Jul. 01, 2011
Percentage of ownership	100.00%
Sichuan RuixinPhotovoltaic Materials Co., Ltd. ("Sichuan Ruixin")
List of all subsidiaries [Line Items]
Date of incorporation	Nov. 23, 2010
Place of incorporation	PRC
Percentage of ownership	100.00%
Sichuan SiLiDe Composite Materials Co., Ltd. ("Sichuan SiLiDe")
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 11, 2011
Place of incorporation	PRC
Percentage of ownership	100.00%
ReneSola Deutschland GmbH ("ReneSola Germany")
List of all subsidiaries [Line Items]
Date of incorporation	Sep. 26, 2011
Place of incorporation	Germany
Date of commencement	Aug. 01, 2012
Percentage of ownership	100.00%
ReneSola New Energy S.A.R.L ("ReneSola New Energy")
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 28, 2012
Place of incorporation	Luxemburg
Percentage of ownership	100.00%
ReneSola Australia PTY LTD ("ReneSola Australia")
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 30, 2012
Place of incorporation	Australia
Date of commencement	Nov. 01, 2012
Percentage of ownership	100.00%
ReneSola Japan Ltd. ("ReneSola Japan")
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 09, 2012
Place of incorporation	Japan
Date of commencement	Nov. 01, 2012
Percentage of ownership	100.00%
LUCAS EST S.R.L ("LUCAS")
List of all subsidiaries [Line Items]
Date of acquisition	Sep. 13, 2012
Date of incorporation	Dec. 17, 2008
Place of incorporation	Romania
Date of commencement	Jan. 01, 2014
Percentage of ownership	100.00%
ECOSFER ENERGY S.R.L ("ECOSFER")
List of all subsidiaries [Line Items]
Date of acquisition	Sep. 26, 2012
Date of incorporation	Nov. 17, 2011
Place of incorporation	Romania
Date of commencement	Jan. 01, 2014
Percentage of ownership	100.00%
ReneSola India Private Limited ("ReneSola India")
List of all subsidiaries [Line Items]
Date of incorporation	Nov. 22, 2012
Place of incorporation	India
Date of commencement	Dec. 01, 2012
Percentage of ownership	100.00%
Lucas Est Korea Co., Ltd ("Lucas Korea")
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 12, 2013
Place of incorporation	Korea
Percentage of ownership	100.00%
Ecosfer Energy Korea Co., Ltd ("Ecosfer Korea")
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 12, 2013
Place of incorporation	Korea
Percentage of ownership	100.00%
ReneSola UK Limited ("ReneSola UK")
List of all subsidiaries [Line Items]
Date of incorporation	Apr. 11, 2013
Place of incorporation	UK
Date of commencement	Jul. 01, 2013
Percentage of ownership	100.00%
ReneSola Shanghai Ltd ("ReneSola Shanghai")
List of all subsidiaries [Line Items]
Date of incorporation	May 30, 2013
Place of incorporation	PRC
Date of commencement	Oct. 01, 2013
Percentage of ownership	100.00%
ReneSola South Africa Proprietary Limited ("ReneSola South Africa")
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 06, 2013
Place of incorporation	South Africa
Date of commencement	Feb. 01, 2014
Percentage of ownership	100.00%
ReneSola Panama Inc. ("ReneSola Panama")
List of all subsidiaries [Line Items]
Date of incorporation	Dec. 28, 2013
Place of incorporation	Panama
Date of commencement	Mar. 01, 2014
Percentage of ownership	100.00%
ReneSola France SAS ("ReneSola France")
List of all subsidiaries [Line Items]
Date of incorporation	Feb. 07, 2014
Place of incorporation	France
Date of commencement	Jul. 01, 2014
Percentage of ownership	100.00%
ReneSola Italy S.R.L. ("ReneSola Italy")
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 28, 2014
Place of incorporation	Italy
Date of commencement	Jun. 01, 2014
Percentage of ownership	100.00%
ReneSola (Thailand) Inc. ("ReneSola Thailand")
List of all subsidiaries [Line Items]
Date of incorporation	Feb. 24, 2014
Place of incorporation	Thailand
Date of commencement	Feb. 01, 2015
Percentage of ownership	100.00%
RENESOLA MEXICO,S,de R.L de C.V. ("ReneSola Mexico")
List of all subsidiaries [Line Items]
Date of incorporation	Apr. 10, 2014
Place of incorporation	Mexico
Date of commencement	Jul. 01, 2014
Percentage of ownership	100.00%
RENESOLA TURKEY GuNES ENERJISI TEKNOLOJI HIZMETLERI VE TICARET L ("ReneSola Turkey")
List of all subsidiaries [Line Items]
Date of incorporation	Apr. 22, 2014
Place of incorporation	Turkey
Date of commencement	Aug. 01, 2014
Percentage of ownership	100.00%
PT. ReneSola Clean Energy ("ReneSola Indonesia")
List of all subsidiaries [Line Items]
Date of incorporation	May 14, 2014
Place of incorporation	Indonesia
Date of commencement	Feb. 01, 2015
Percentage of ownership	100.00%
RENESOLA DO BRASIL COMERCIO E REPRENTACAO LTDA ("ReneSola Brazil")
List of all subsidiaries [Line Items]
Date of incorporation	May 12, 2014
Place of incorporation	Brazil
Date of commencement	Dec. 01, 2015
Percentage of ownership	100.00%
RENESOLA ENGINEERING INTERNATIONAL GMBH ("ReneSola Austria")
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 22, 2014
Place of incorporation	Austria
Date of commencement	Dec. 01, 2014
Percentage of ownership	100.00%
RENESOLA Canada Limited ("ReneSola Canada")
List of all subsidiaries [Line Items]
Date of incorporation	Jun. 23, 2014
Place of incorporation	Canada
Date of commencement	Dec. 01, 2014
Percentage of ownership	100.00%
ReneSola Investment Management Ltd ("ReneSola Investment")
List of all subsidiaries [Line Items]
Date of incorporation	Dec. 02, 2014
Place of incorporation	British Virgin Island
Date of commencement	Jul. 01, 2015
Percentage of ownership	100.00%
Renesola Energy, INC. [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Dec. 22, 2014
Place of incorporation	United States
Date of commencement	Sep. 01, 2015
Percentage of ownership	100.00%
Renesola Power, Inc. ("Renesola Power") [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 23, 2015
Place of incorporation	United States
Date of commencement	Sep. 01, 2016
Percentage of ownership	100.00%
Renesola UK Rooftop Limited ("Renesola UK Rooftop") [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Aug. 06, 2015
Place of incorporation	UK
Date of commencement	Apr. 01, 2016
Percentage of ownership	100.00%
Baynergy, LLC ("Baynergy") [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Jul. 08, 2015
Place of incorporation	United States
Date of commencement	Apr. 01, 2016
Percentage of ownership	100.00%
Renesola Shaoxing Ltd [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 09, 2016
Place of incorporation	PRC
Date of commencement	Apr. 01, 2016
Percentage of ownership	100.00%
Renesola Panan Ltd [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Mar. 28, 2016
Place of incorporation	PRC
Date of commencement	Apr. 01, 2016
Percentage of ownership	100.00%
Renesola Power Holdings Llc [Member]
List of all subsidiaries [Line Items]
Date of incorporation	May 19, 2016
Place of incorporation	United States
Date of commencement	Sep. 01, 2016
Percentage of ownership	100.00%
RSE Land Holdings Llc [Member]
List of all subsidiaries [Line Items]
Date of incorporation	Dec. 12, 2016
Place of incorporation	United States
Percentage of ownership	100.00%

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Basis of Presentation and Restricted Cash) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2017	Dec. 31, 2013
Basis of presentation [Line Items]
Net loss	$ 34,698,251	$ 5,075,122	$ 33,633,793
Excess of current liabilities over current assets	396,938,100
Cash and cash equivalents	37,336,382	38,045,225	$ 99,847,604		$ 86,772,678
Short-term bank borrowings	595,433,960	667,682,811
Unused lines of credit	66,306,284	96,154,884
Maximum capacity of letters of commitment	$ 656,736,068	$ 759,673,982
Subsequent event [Member]
Basis of presentation [Line Items]
Amount of roll-over in short-term loans				$ 83,700,000
Subsequent event [Member] \| Forecast [Member]
Basis of presentation [Line Items]
Amount of roll-over in short-term loans				83,700,000
Unused lines of credit				61,000,000
Maximum capacity of letters of commitment				389,900,000
Subsequent event [Member] \| Trade financing [Member] \| Forecast [Member]
Basis of presentation [Line Items]
Unused lines of credit				59,500,000
Maximum capacity of letters of commitment				101,300,000
Subsequent event [Member] \| Short-term bank borrowings [Member] \| Forecast [Member]
Basis of presentation [Line Items]
Maximum capacity of letters of commitment				$ 288,600,000

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Project Assets and Investments) (Narrative) (Details)	Dec. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)
Project assets [Line Items]
Property, plant and equipment	$ 491,255,212	$ 630,462,070
Deferred project costs	$ 16,374,899	$ 20,874,446
Romania [Member]
Project assets [Line Items]
Number of project assets \| item	2
Property, plant and equipment	$ 27,127,591

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Advances to Suppliers and Advances for Purchase of Property, Plant and Equipment and Intangible Assets) (Narrative) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Advances to suppliers-current	$ 14,943,450	$ 18,479,686
Prepayments for property, plant and equipment, recorded in non-current assets	$ 845,907	$ 381,958

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Schedule of Concentration Risk) (Details) - Suppliers concentration risk [Member] - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Largest prepayments made to individual suppliers [Member] \| Supplier A [Member]
Advances to suppliers and advances for purchase of property, plant and equipment [Line Items]
Amount of concentration risk	$ 1,614,677	$ 6,400,000
Largest prepayments made to individual suppliers [Member] \| Supplier B [Member]
Advances to suppliers and advances for purchase of property, plant and equipment [Line Items]
Amount of concentration risk	1,458,913	1,070,954
Advances and prepayments to equipment suppliers [Member] \| Supplier A [Member]
Advances to suppliers and advances for purchase of property, plant and equipment [Line Items]
Amount of concentration risk	236,929	71,783
Advances and prepayments to equipment suppliers [Member] \| Supplier B [Member]
Advances to suppliers and advances for purchase of property, plant and equipment [Line Items]
Amount of concentration risk		$ 66,689

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Schedule of Estimated Useful Lives of Property, Plant and Equipment Stated at Cost Less Accumulated Depreciation) (Details)	12 Months Ended
	Dec. 31, 2016
Buildings [Member] \| Minimum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	40 years
Buildings [Member] \| Maximum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	50 years
Leasehold Improvements [Member] \| Minimum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	10 years
Leasehold Improvements [Member] \| Maximum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	25 years
Plant and machinery [Member] \| Minimum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	10 years
Plant and machinery [Member] \| Maximum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	25 years
Motor vehicles [Member] \| Minimum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	4 years
Motor vehicles [Member] \| Maximum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	5 years
Office equipment [Member] \| Minimum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	3 years
Office equipment [Member] \| Maximum [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	5 years
Solar Power Project [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Estimated useful lives	25 years

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Summary of Assets Held for Sale) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Assets held-for-sale [Line Items]
Assets held-for-sale	$ 7,558,218	$ 4,240,878
Property, plant and equipment, net [Member]
Assets held-for-sale [Line Items]
Assets held-for-sale	6,638,018	3,530,744
Prepaid land use right, net [Member]
Assets held-for-sale [Line Items]
Assets held-for-sale	$ 920,200	$ 710,134

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Assets retirement obligation, Prepaid Land Use Right and Impairment of Long-Lived Assets) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Prepaid land use right
Period for recognition of intangible assets as an expense, minimum	40 years
Period for recognition of intangible assets as an expense, maximum	50 years
Expenses recognized	$ 815,236	$ 910,157	$ 779,703
Impairment of long-lived assets
Impairment charge of long-lived assets	$ 4,624,979

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Convertible Senior Notes, Revenue Recognition, Deferred Project Revenue, Cost of Revenues, Warranty Costs and Government Grants) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue recognition [Line Items]
Amortization of deferred convertible notes issuance costs and premium	$ 32,935	$ 764,527	$ 933,152
Sales of project assets	911,552,022	1,270,558,771	1,552,893,052
Deferred project revenue
Deferred project revenue	32,242,995	32,376,386
Cost of revenues
Shipping and handling costs	$ 19,598,411	34,734,098	55,474,721
Warranty expenses
Period of warranties for solar modules against specified declines in the initial minimum power generation capacity at the time of delivery	25 years
Warranty accrual rate as a percentage of PV module revenues	1.00%
Product warranty expense	$ 4,429,833	3,249,623
Government grants
Government grants recorded in other operating income	2,457,077	3,815,650	4,618,498
Government grants received, related to property, plant and equipment and land use right	0	0	12,037,938
Deferred government grants	20,824,155	23,241,899
Amortization of government grant received, related to property, plant and equipment	644,451	829,668	1,455,103
Solar power projects [Member]
Revenue recognition [Line Items]
Sales of project assets	$ 83,107,906	$ 110,737,934	$ 0

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Foreign Currency and Derivative Financial Instruments) (Narrative) (Details)	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)
Foreign currency [Line Items]
Cash and cash equivalents, functional currency equivalent of foreign currency denominated amount	$ 16,157,889	$ 5,342,001		¥ 112,184,192	¥ 34,604,501
Restricted cash	95,865,515	140,337,531		¥ 613,666,780	¥ 560,065,172
Restricted cash, functional currency equivalent of foreign currency denominated amount	88,386,426	86,458,941
Derivative financial instruments
Net (gains) losses on derivative instruments from foreign currency forward exchange contracts	(4,591,991)	$ 6,030,915	$ (6,057,941)
Foreign exchange contracts [Member] \| Non-designated [Member]
Foreign currency [Line Items]
Notional amount of outstanding foreign currency forward exchange contracts	$ 50,605,200

SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Earnings (Loss) Per Share and Treasury Stock) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Sep. 23, 2015
Treasury Stock
Total cash consideration of shares repurchased	$ (1,493,352)	$ (812,184)
Treasury stock [Member]
Treasury Stock
Total cash consideration of shares repurchased	$ (1,493,352)	$ (812,184)
American Depository Shares (ADS) [Member]
Treasury Stock
Maximum amount authorized to repurchase ADS			$ 20,000,000
Treasury Stock, Shares, Retired	2,804,286	1,614,776
ADS repurchased	280,429	161,477
American Depository Shares (ADS) [Member] \| Treasury stock [Member]
Treasury Stock
Treasury Stock, Shares, Retired	1,352,586

ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance of doubtful receivables, advance to suppliers and prepayment for purchases of property, plant and equipment	$ 1,993,446	$ 117,520	$ 5,710,167

ALLOWANCES FOR DOUBTFUL RECEIVABLES AND ADVANCES (Schedule of Allowances) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowances for accounts receivable [Member]
Movement of allowances
Beginning of the year	$ 5,152,466	$ 7,638,434	$ 4,869,942
Allowances made during the year	1,540,047	2,516,554	9,526,878
Reversals made during the year	(2,401,464)	(2,943,154)	(4,090,855)
Write off	(1,493)	(1,847,631)	(2,371,420)
Foreign exchange effect	(208,053)	(211,737)	(296,111)
Closing balance	4,081,503	5,152,466	7,638,434
Allowances for other receivables [Member]
Movement of allowances
Beginning of the year	8,882,559	9,130,804	8,904,534
Allowances(reversal) made during the year	1,273,437	(226,533)	234,898
Foreign exchange effect	(67,125)	(21,712)	(8,628)
Closing balance	10,088,871	8,882,559	9,130,804
Allowances for advances for purchases of property, plant and equipment [Member]
Movement of allowances
Beginning of the year	1,960,329	1,286,046	1,306,139
Allowances(reversal) made during the year	30,811	769,367	12,983
Write off	(350)
Foreign exchange effect	(149,647)	(95,084)	(33,076)
Closing balance	1,841,143	1,960,329	1,286,046
Allowances for advances to suppliers [Member]
Movement of allowances
Beginning of the year	4,441,461	4,459,487	4,442,627
Allowances(reversal) made during the year	1,550,615	1,286	26,263
Write off		(49)
Foreign exchange effect	(195,396)	(19,263)	(9,403)
Closing balance	$ 5,796,680	$ 4,441,461	$ 4,459,487

INVENTORIES (Schedule of Inventories) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Raw materials	$ 21,112,892	$ 44,208,096
Work-in-process	27,941,926	27,302,298
Finished goods	94,921,237	121,660,725
Total inventories	$ 143,976,055	$ 193,171,119

INVENTORIES (Narrative) (Details) - USD ($)	12 Months Ended
INVENTORIES (Narrative) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Inventories [Line Items]
Inventory write-down	$ 1,963,411	$ 619,858	$ 808,031

PROJECT ASSETS AND DEFERRED PROJECT COSTS (Schedule of Project Assets and Deferred Project Costs) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Project assets - Module cost	$ 6,822,294	$ 1,923,114
Project assets - Development	42,615,862	13,495,278
Project assets - Others	5,449,251	4,795,230
Total project assets	54,887,407	20,213,622
Current portion	48,177,416	20,213,622
Non-current portion	6,709,991
Total deferred project costs	16,374,899	20,874,446
Current portion
Noncurrent portion	16,374,899	20,874,446
Total project assets and deferred project costs	$ 71,262,306	$ 41,088,068

PROPERTY, PLANT AND EQUIPMENT, NET (Schedule of Property, Plant and Equipment Net) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	$ 967,203,556	$ 1,062,677,759
Less: Accumulated depreciation	483,716,135	441,165,827
Property, plant and equipment, net before construction in progress	483,487,421	621,511,932
Property, plant and equipment, net	491,255,212	630,462,070
Buildings [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	206,408,397	218,144,388
Leasehold improvement [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	129,294	129,294
Plant and machinery [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	722,238,300	793,331,294
Motor vehicles [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	2,258,912	2,442,337
Office equipment [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	12,998,049	11,893,297
Construction in progress [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, net	7,767,791	8,950,138
Power stations [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, gross	$ 23,170,604	$ 36,737,149

PROPERTY, PLANT AND EQUIPMENT, NET (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, net	$ 491,255,212	$ 630,462,070
Depreciation expense	83,205,965	90,112,980	$ 90,223,634
Impairment of long-lived assets for the period	4,624,979
Power station built for generating electricity business, portion included in Buildings, Plant and machinery [Member]
PROPERTY, PLANT AND EQUIPMENT, NET [Line Items]
Property, plant and equipment, net	$ 23,200,000	$ 36,700,000

FAIR VALUE MEASUREMENTS (Schedule of Assets and Liabilities Measured on the Company's Consolidated Balance Sheet at Fair Value on a Recurring Basis Subsequent to Initial Recognition) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
FAIR VALUE MEASUREMENTS [Line Items]
Warrant liability		$ (577,500)
Recurring basis [Member] \| Cross currency forward exchange contracts [Member]
FAIR VALUE MEASUREMENTS [Line Items]
Derivative assets		56,253
Recurring basis [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Cross currency forward exchange contracts [Member]
FAIR VALUE MEASUREMENTS [Line Items]
Derivative assets
Derivative liabilities
Warrant liability
Recurring basis [Member] \| Significant Other Observable Inputs (Level 2) [Member]
FAIR VALUE MEASUREMENTS [Line Items]
Warrant liability		(577,500)
Recurring basis [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Cross currency forward exchange contracts [Member]
FAIR VALUE MEASUREMENTS [Line Items]
Derivative assets	2,715,736
Derivative liabilities		(29,519)
Warrant liability		(577,500)
Recurring basis [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Cross currency forward exchange contracts [Member]
FAIR VALUE MEASUREMENTS [Line Items]
Derivative assets
Derivative liabilities
Warrant liability
Recurring basis [Member] \| Total Fair Value and Carrying Value on the Balance Sheet [Member] \| Cross currency forward exchange contracts [Member]
FAIR VALUE MEASUREMENTS [Line Items]
Derivative assets	2,715,736	56,253
Derivative liabilities		(29,519)
Warrant liability		$ (577,500)

FAIR VALUE MEASUREMENTS (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
FAIR VALUE MEASUREMENTS [Line Items]
Outstanding convertible notes		$ 26.1
Estimated fair value of convertible notes		24.8
Long-term bank borrowings (including the current portions)	28.8	39.9
Fair value of long-term borrowings (including the current portions)	27.6	38.6
Other Asset Impairment Charges	$ 4.6

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

INCOME TAXES (Narrative) (Details)	12 Months Ended
INCOME TAXES (Narrative) (Details)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014	Dec. 31, 2016 CNY (¥)
INCOME TAXES
Statutory income tax rate in PRC (as a percent)	25.00%	25.00%	25.00%
Period of statute of limitations	3 years
Extended period of statute of limitations	5 years
Temporary difference for which no deferred tax liability recognized	$ 52,100,000	$ 34,500,000
Deferred Tax Assets, Valuation Allowance	130,567,941	$ 126,550,971
Minimum [Member]
INCOME TAXES
Amount of underpayment of tax considered for applicability of extended period of statute of limitations Period	$ 15,060			¥ 100,000
PRC [Member]
INCOME TAXES
Percentage of super deduction for research and development in addition to actual expenses deduction	50.00%
Net operating loss carryforwards	$ 272,699,478
PRC [Member] \| 2017 [Member]
INCOME TAXES
Net operating loss carryforwards	123,322,586
PRC [Member] \| 2018 [Member]
INCOME TAXES
Net operating loss carryforwards	22,371,011
PRC [Member] \| 2019 [Member]
INCOME TAXES
Net operating loss carryforwards	60,072,505
PRC [Member] \| 2020 [Member]
INCOME TAXES
Net operating loss carryforwards	63,210,580
PRC [Member] \| 2021 [Member]
INCOME TAXES
Net operating loss carryforwards	$ 3,722,796
Overseas [Member] \| Minimum [Member]
INCOME TAXES
Statutory income tax rate in PRC (as a percent)	10.00%
Overseas [Member] \| Maximum [Member]
INCOME TAXES
Statutory income tax rate in PRC (as a percent)	40.00%
US [Member] \| 2032 to 2035 [Member]
INCOME TAXES
Net operating loss carryforwards	$ 20,417,176
ReneSola Jiangsu [Member]
INCOME TAXES
Reduced income tax rate for high-new-technology (as a percent)	15.00%
Rene Sola Bangsheng [Member]
INCOME TAXES
Statutory income tax rate in PRC (as a percent)	25.00%
ReneSola Germany [Member]
INCOME TAXES
Net operating loss carryforwards	$ 18,067,167

INCOME TAXES (Schedule of Components of Tax Benefit (Expense) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income (Loss) before income tax
PRC	$ 26,560,892	$ 22,416,826	$ (2,748,982)
Other jurisdictions	(58,965,544)	(26,818,332)	(31,234,691)
Loss before income tax, non-controlling interests	(32,404,652)	(4,401,506)	(33,983,673)
Current tax benefit (expense)
PRC	(2,412,560)
Other jurisdictions	(251,202)	(218,556)	256,071
Subtotal	(2,663,762)	(218,556)	256,071
Deferred tax benefit (expense)
PRC	(611,029)	97,189	(4,595,374)
Other jurisdictions	981,192	(552,249)	4,689,183
Subtotal	370,163	(455,060)	93,809
Total income tax benefit (expense)	$ (2,293,599)	$ (673,616)	$ 349,880

INCOME TAXES (Schedule of Principal Components of Deferred Income Tax Assets and Liabilities) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Property, plant and equipment	$ 998,093	$ 373,994
Inventories provision	700,182	452,362
Tax losses	89,148,913	81,552,073
Contingent liabilities	264,806	843,219
Bad debts provision	1,793,593	1,603,589
Deferred subsidies	3,750,258	4,123,916
Impairment for long-lived assets	40,808,679	43,366,347
Warranty provision	8,435,581	8,925,955
Silicon income		262,383
Others	465,334	1,557,477
Total gross deferred tax assets	146,365,439	143,061,315
Valuation allowance on deferred tax assets	(130,567,941)	(126,550,971)
Net deferred tax assets	15,797,498	16,510,344
Analysis as
Current		5,988,646
Non-current	15,797,498	10,521,698
Net deferred tax assets	15,797,498	16,510,344
Deferred tax liabilities:
Prepaid land use right	258,556	283,980
Total deferred tax liabilities	258,556	283,980
Analysis as:
Current
Non-current	258,556	283,980
Total deferred tax liabilities	$ 258,556	$ 283,980

INCOME TAXES (Schedule of Reconciliation Between the Applicable Statutory Income Tax Rate and the Company's Effective Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation between the applicable statutory income tax rate and the Company's effective tax rate
PRC applicable income tax rate (as a percent)	25.00%	25.00%	25.00%
Effect of Tax holiday - HNTE (as a percent)	1.10%		11.30%
Effect of Tax holiday - non-taxable income (as a percent)			0.80%
Valuation allowance (as a percent)	(29.90%)	(142.30%)	(36.10%)
Expiration of tax loss (as a percent)	(3.80%)	0.00%	(14.00%)
Effect of different tax rate of subsidiaries (as a percent)	(4.10%)	113.90%	13.50%
Effect of future tax rate change (as a percent)	10.30%	20.90%
Non-deductible expense (as a percent)	(5.60%)	(65.40%)	(7.30%)
R and D super deduction (as a percent)	3.70%	44.30%	8.40%
Land value-added tax (as a percent)	(3.70%)
Others (as a percent)	(0.10%)	(11.70%)	(0.60%)
Effective income tax rate (as a percent)	(7.10%)	(15.30%)	1.00%

INCOME TAXES (Schedule of Aggregate Amount and Per Share Effect of the Tax Holiday) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Aggregate amount and per share effect of the Tax Holiday
Aggregate	$ 93,403		$ 4,081,529
Per share effect -basic (in dollar per share)			$ 0.02
Per share effect-diluted (in dollar per share)			$ 0.02

BORROWINGS (Schedule of Bank Borrowings) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Short-term	$ 595,433,960	$ 667,682,811
Long-term, current portion		1,104,735
Subtotal	595,433,960	668,787,546
Long-term	28,835,700	38,776,693
Total	$ 624,269,660	$ 707,564,239

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

BORROWINGS (Narrative) (Details) - USD ($)	12 Months Ended
BORROWINGS (Narrative) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
BORROWINGS [Line Items]
Maximum bank credit facilities	$ 656,736,068	$ 759,673,982
Available bank credit facilities	66,306,284	96,154,884
Short-term	595,433,960	667,682,811
Carrying amount of property plant and equipment secured for borrowing	470,327,154	511,097,611
Carrying amount of prepaid land use right secured for borrowing	$ 26,539,709	$ 34,555,805
Short-term
Weighted average interest rate (as a percent)	4.85%	5.65%	5.75%
Interest expense
Interest expense incurred	$ 33,939,704	$ 43,417,785	$ 49,261,829
Interest expense capitalized			$ 246,027
ReneSola Zhejiang [Member]
BORROWINGS [Line Items]
Short-term	323,339,957
ReneSola Jiangsu [Member]
BORROWINGS [Line Items]
Short-term	20,164,200
Sichuan Ruiyu [Member]
BORROWINGS [Line Items]
Short-term	7,201,500
Zhejiang Integration [Member]
BORROWINGS [Line Items]
Short-term	2,880,600
Mr. Xianshou Li and his family [Member]
BORROWINGS [Line Items]
Guarantees provided by related party for debt	292,380,900	318,008,380
Credit facilities [Member]
BORROWINGS [Line Items]
Secured borrowings	$ 590,429,784	$ 663,519,098
Long-term [Member]
Long-term
Weighted average interest rate (as a percent)	6.80%	6.58%	6.91%
Secured debt [Member]
BORROWINGS [Line Items]
Short-term	$ 390,898,024	$ 307,558,955
Secured borrowings	$ 28,835,700	$ 9,294,218

BORROWINGS (Schedule of Future Principal Repayment on the Long-Term Bank Loans) (Details)	Dec. 31, 2016 USD ($)
Future principal repayment on the long-term bank loans
2020 and after	$ 28,835,700

OTHER CURRENT LIABILITIES (Schedule of Other Current Liabilities) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Payable for purchase of property, plant and equipment	$ 21,959,267	$ 33,529,239
Other payables	40,165,675	43,709,026
Other current liabilities	$ 62,124,942	$ 77,238,265

CONVERTIBLE SENIOR NOTES (Details)		12 Months Ended
CONVERTIBLE SENIOR NOTES (Details)	Apr. 07, 2011 USD ($)	Dec. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($) $ / shares	Dec. 31, 2014 USD ($)	Dec. 31, 2011 USD ($)	Mar. 15, 2011 USD ($)
CONVERTIBLE SENIOR NOTES [Line Items]
Cash used for repurchase of debt		$ 25,931,219	$ 54,376,600	$ 9,809,860
Net gain repurchase of debt		212,056	13,693,269	7,048,188
Amortization of deferred convertible notes issuance costs and premium		$ 32,935	764,527	933,152
Convertible Senior Notes due 2018 [Member]
CONVERTIBLE SENIOR NOTES [Line Items]
Debt issued						$ 175,000,000
Interest rate (as a percent)		4.125%
Redemption price as a percentage of principal amount at maturity together with any accrued but unpaid interest		100.00%
Redemption price at the option of the holder as a percentage of principal amount together with any accrued but unpaid interest		100.00%
Repurchase of debt		$ 26,145,000	68,454,000		$ 88,384,000
Cash used for repurchase of debt		25,931,219	54,376,600		57,055,127
Net gain repurchase of debt		212,056	13,693,269		28,349,939
Carrying value
Maximum aggregate principal amount pertaining to exercise of over-allotment of debt by initial purchasers	$ 25,000,000
Deferred issuance cost expensed		1,725	384,131		2,978,934
Refund of portion of premium paid due to repurchase of debt					861,280
Amortization of deferred convertible notes issuance costs and premium		$ 32,935	$ 764,527	$ 933,152
Debt Issuance Cost					$ 7,156,101
Convertible Senior Notes due 2018 [Member] \| American Depository Shares (ADS) [Member]
CONVERTIBLE SENIOR NOTES [Line Items]
Conversion price of debts (in pound sterling per share/in dollars per ADS) \| $ / shares			$ 10.5473
Number of shares to be allotted and issued on full conversion of debts (in shares/ADS)			2,478,833
Cap price (in dollars per ADS) \| $ / shares		$ 15.0675
Premium of preliminary option		$ 21,504,779
Premium of over-allotment option		$ 3,197,500

WARRANT LIBILITY (Narrative) (Details)		12 Months Ended
WARRANT LIBILITY (Narrative) (Details)	Sep. 16, 2013 USD ($) $ / shares shares	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
WARRANT LIBILITIES [Line Items]
Warrant liability recognized			$ 577,500
Gain from the change in fair value of the warrant liability		(577,500)	(1,312,500)	$ (7,455,000)
Warrant [Member]
WARRANT LIBILITIES [Line Items]
Number of shares that can be purchased on exercise of warrants \| shares	10,500,000
Number of shares that can be purchased on exercise of warrants as a percentage of shares issued in public offering	35.00%
Number of ordinary shares per ADS	30.2
Aggregate American Depository Shares (ADS) \| shares	1,050,000
Exercise price (in dollars per share) \| $ / shares	$ 3.02
Warrant liability recognized	$ 12,547,500
Gain from the change in fair value of the warrant liability		$ 577,500	$ 1,312,500	$ 7,455,000

WARRANT LIBILITY (Schedule of Assumptions Used to Estimate Fair Value of Warrants Using the Monte Carlo Simulation) (Details) - Warrant [Member] - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assumptions to estimate the fair value of warrants
Stock price (in dollars per share)	$ 3.20	$ 8.50	$ 7.05
Exercise price (in dollars per share)	$ 30.2	$ 30.2	$ 30.2
Annual dividend yield (as a percent)			0.00%
Time to maturity	8 months 12 days	1 year 8 months 12 days	2 years 8 months 12 days
Risk-free interest rate (as a percent)	0.70%	0.93%	0.96%
Expected volatility (as a percent)	42.90%	67.20%	83.00%

WARRANT LIBILITY (Schedule of Reconciliation of the Beginning and Ending Balances of Warrants Liability Measured at Fair Value on a Recurring Basis Using Level 2 Inputs) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reconciliation of the beginning and ending balances of warrants liability measured at fair value on a recurring basis using Level 2 inputs [Roll Forward]
Beginning balance	$ 577,500
Fair value change of the issued warrants included in earnings	(577,500)	$ (1,312,500)	$ (7,455,000)
Ending balance		577,500
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Reconciliation of the beginning and ending balances of warrants liability measured at fair value on a recurring basis using Level 2 inputs [Roll Forward]
Beginning balance	577,500
Warrants issued
Fair value change of the issued warrants included in earnings	(577,500)
Ending balance		$ 577,500

SHARE BASED COMPENSATION (Narrative) (Details) - USD ($)		1 Months Ended	12 Months Ended
	Aug. 08, 2012	Nov. 30, 2006	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Employee Stock Option [Member]
Additional disclosures [Abstract]
Compensation cost			$ 692,322	$ 1,204,494	$ 2,104,126
Granted (in shares)			825,000	1,150,000	2,590,000
Granted (in dollars per share)			$ 0.74	$ 0.74	$ 0.74
Options modification [Abstract]
Incremental compensation cost	$ 774,932					$ 444,373
Unrecognized incremental compensation costs						$ 330,559
Additional disclosures [Abstract]
Weighted average fair value of options granted (in dollars per share)			$ 0.48	$ 0.72	$ 1.67
Unrecognized compensation expense related to unvested share-based compensation arrangements			$ 1,360,533
Period for recognition of unrecognized compensation costs			3 years 8 months 8 days
Total intrinsic value of options exercised (in dollars)			$ 0	$ 644,895	$ 306,534
Restricted Stock [Member]
SHARE BASED COMPENSATION [Line Items]
Fair value of shares based on market price (in dollars per share)		$ 4.47
Restricted Share Units [Member]
SHARE BASED COMPENSATION [Line Items]
Fair value of shares based on market price (in dollars per share)			$ 0.63
2007 Share Incentive Plan [Member]
Additional disclosures [Abstract]
Number of authorized shares			7,500,000
2007 Share Incentive Plan [Member] \| Restricted Share Units [Member]
Additional disclosures [Abstract]
Compensation cost			$ 54,658	$ 323,000
Additional disclosures [Abstract]
Unrecognized compensation expense related to unvested share-based compensation arrangements			$ 120,342
Mr. Li [Member] \| ReneSola America [Member]
SHARE BASED COMPENSATION [Line Items]
Number of shares agreed to be granted each year		40,000
Mr. Huang [Member] \| ReneSola America [Member]
SHARE BASED COMPENSATION [Line Items]
Number of shares agreed to be granted each year		20,000

SHARE BASED COMPENSATION (Schedule of Assumptions Used to Estimate the Fair Value of the Options) (Details) - Options [Member]	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assumptions used to estimate fair value of the options [Abstract]
Average risk-free rate of return, minimum (as a percent)	1.00%	1.36%	1.63%
Average risk-free rate of return, maximum (as a percent)	1.52%	1.76%	1.76%
Weighted average expected option life	3 years 2 months 12 days	3 years 2 months 12 days	4 years 6 months
Volatility rate, minimum (as a percent)	119.83%	140.01%	169.77%
Volatility rate, maximum (as a percent)	146.29%	146.02%	173.01%
Dividend yield (as a percent)	0.00%	0.00%	0.00%

SHARE BASED COMPENSATION (Summary of the Option Activity) (Details) - Options [Member] - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Number of Options [Roll Forward]
Options outstanding at the beginning of the period (in shares)	5,947,000
Granted (in shares)	825,000	1,150,000	2,590,000
Exercised (in shares)
Forfeited (in shares)	(687,000)
Options outstanding at the end of the period (in shares)	6,085,000	5,947,000
Vested or expected to vest at the end of the period (in shares)	5,966,260
Exercisable at the end of the period (in shares)	3,313,600
Weighted Average Exercise Prices [Abstract]
Options outstanding at the beginning of the period (in dollars per share)	$ 0.74
Granted (in dollars per share)	0.74	$ 0.74	$ 0.74
Exercised (in dollars per share)
Forfeited (in dollars per share)	0.74
Options outstanding at the end of the period (in dollars per share)	0.74	$ 0.74
Vested or expected to vest at the end of the period (in dollars per share)	0.74
Exercised at the end of the period (in dollars per share)	$ 0.74
Weighted Average Remaining Contractual Life [Abstract]
Outstanding at the beginning of the period	1 year 9 months	2 years 1 month 20 days
Outstanding at the end of the period	1 year 9 months	2 years 1 month 20 days
Vested or expected to vest at the end of the period	1 year 5 months 23 days
Exercisable at the end of the period	8 months 1 day
Aggregate Intrinsic Value [Abstract]
Outstanding at the beginning of the period (in dollars)
Granted (in dollars)
Outstanding at the end of the period (in dollars)
Vested or expected to vest at the end of the period (in dollars)
Exercisable at the end of the period (in dollars)

SHARE BASED COMPENSATION (Summary of the RSUs) (Details) - Restricted Share Units [Member]	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Number of shares
Outstanding at the beginning of the period (in shares) \| shares	137,500
Granted (in shares) \| shares	280,000
Vested (in shares) \| shares	(137,500)
Outstanding at the end of the period (in shares) \| shares	280,000
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period (in dollars per share) \| $ / shares	$ 1.36
Granted (in dollars per share) \| $ / shares	0.63
Vested (in dollars per share) \| $ / shares	1.36
Outstanding at the end of the period (in dollars per share) \| $ / shares	$ 0.63

EMPLOYEE BENEFITS (Details) - USD ($)	12 Months Ended
EMPLOYEE BENEFITS (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
EMPLOYEE BENEFITS [Line Items]
Total contribution	$ 10,592,227	$ 11,244,297	$ 15,451,989
ReneSola Zhejiang [Member]
EMPLOYEE BENEFITS [Line Items]
Percentage of employer matching contribution of basic salaries	14.00%
Percentage of employer's contribution required by PRC law	22.00%
Sichuan ReneSola Silicon Material Co., Ltd. ("Sichuan ReneSola")
EMPLOYEE BENEFITS [Line Items]
Percentage of employer matching contribution of basic salaries	19.00%
Percentage of employer's contribution required by PRC law	18.00%
ReneSola Jiangsu [Member]
EMPLOYEE BENEFITS [Line Items]
Percentage of employer matching contribution of basic salaries	19.00%
Percentage of employer's contribution required by PRC law	20.40%
Renesola Shanghai Ltd [Member]
EMPLOYEE BENEFITS [Line Items]
Percentage of employer matching contribution of basic salaries	20.00%
Percentage of employer's contribution required by PRC law	19.20%

DISTRIBUTION OF PROFIT (Details) - USD ($)	12 Months Ended
DISTRIBUTION OF PROFIT (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Appropriations to general reserve as a percentage of profit after tax, minimum	10.00%
Restricted net assets of PRC subsidiaries	$ 879,908,242	$ 864,408,242

EARNINGS PER SHARE (Schedule of Basic and Diluted Earnings Per Share) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net loss attributed to holder of ordinary shares	$ (34,698,251)	$ (5,075,122)	$ (33,630,021)
Net loss adjusted for dilutive securities	$ (34,698,251)	$ (5,075,122)	$ (33,630,021)
Weighted-average number of common shares outstanding-basic	202,229,767	204,085,041	203,550,049
Weighted-average number of common shares outstanding-diluted	202,229,767	204,085,041	203,550,049
Basic loss per share	$ (0.17)	$ (0.02)	$ (0.17)
Diluted loss per share	$ (0.17)	$ (0.02)	$ (0.17)

EARNINGS PER SHARE (Narrative) (Details) - shares	12 Months Ended
EARNINGS PER SHARE (Narrative) (Details) - shares	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Anti-dilutive securities excluded from computation of earnings per share [Line Items]
Number of shares issued to the share depository bank but are treated as escrowed shares	488,100	125,600
Common shares issuable upon assumed conversion of convertible debt, share options restricted shares and warrant [Member]
Anti-dilutive securities excluded from computation of earnings per share [Line Items]
Anti-dilutive securities (in shares)	16,585,000	18,356,267	30,420,950

RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Amounts Due from Related Parties Comprised of Amounts Receivable from the Sales of Goods) (Details) - USD ($)

Dec. 31, 2016

Dec. 31, 2015

Amounts due from related parties

Amounts receivable from the sales of goods

$ 13,065,625

$ 110,952

Zhejiang Yuhuan [Member]

Amounts due from related parties

Amounts receivable from the sales of goods

^[1]

58,581

110,952

Jinko and its subsidiaries [Member]

Amounts due from related parties

Amounts receivable from the sales of goods

^[2]

$ 13,007,044

[1]	Zhejiang Yuhuan Solar Energy Source Co., Ltd. (“Zhejiang Yuhuan”) is controlled by Xianshou Li, Chief Executive Officer.
[2]	The brothers of Mr. Xianshou Li are the founders and current shareholders of Jinko Solar Co., Ltd. (“Jinko and its subsidiaries”)

RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Amounts Due to Related Parties Comprised of Amounts Payable to Purchase of Raw Materials and Others) (Details) - USD ($)

Dec. 31, 2016

Dec. 31, 2015

Amounts due to related parties

Amounts payable to the purchase of raw materials and others

$ 1,257,367

$ 2,676,614

Zhejiang Yaohui [Member]

Amounts due to related parties

Amounts payable to the purchase of raw materials and others

^[1]

1,162,849

2,552,385

Jinko and its subsidiaries [Member]

Amounts due to related parties

Amounts payable to the purchase of raw materials and others

^[2]

$ 94,518

$ 124,229

[1]	The brother of HR VP and shareholder of ReneSola Ltd is the director of Zhejiang Yaohui Photovoltaic Co., Ltd. (“Zhejiang Yaohui”)
[2]	The brothers of Mr. Xianshou Li are the founders and current shareholders of Jinko Solar Co., Ltd. (“Jinko and its subsidiaries”)

RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Related Party Transactions) (Details) - USD ($)

12 Months Ended

Dec. 31, 2016

Dec. 31, 2015

Dec. 31, 2014

Sale of goods

$ 40,171,544

$ 53,538

$ 2,898,698

Jinko and its subsidiaries [Member]

Sale of goods

^[1]

40,171,544

53,538

2,898,698

Purchase of raw materials

^[1]

90,409

Zhejiang Yaohui [Member]

Purchase of raw materials

^[2]

2,280,835

4,581,029

5,759,079

Zhejiang Yuhuan [Member]

Rental payment

^[3]

15,361

5,236

3,246

Rental expense

^[3]

62,349

67,566

70,107

Champion era enterprises limited [Member]

Proceed from loan

^[4]

3,000,000

4,000,000

Repayment

^[4]

$ 7,000,000

[1]	The brothers of Mr. Xianshou Li are the founders and current shareholders of Jinko Solar Co., Ltd. (“Jinko and its subsidiaries”)
[2]	The brother of HR VP and shareholder of ReneSola Ltd is the director of Zhejiang Yaohui Photovoltaic Co., Ltd. (“Zhejiang Yaohui”)
[3]	Zhejiang Yuhuan Solar Energy Source Co., Ltd. (“Zhejiang Yuhuan”) is controlled by Xianshou Li, Chief Executive Officer.
[4]	Champion era enterprises Ltd. is controlled by Xianshou Li. The annualized interest rate of the loan is 5%, and the maturity of the loans are three months for the loans during the years ended December 31, 2015.

RELATED PARTY BALANCES AND TRANSACTIONS (Narrative) (Details)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)
RELATED PARTY BALANCES AND TRANSACTIONS [Line Items]
Maturity term	3 months
Mr. Xianshou Li and his family [Member]
RELATED PARTY BALANCES AND TRANSACTIONS [Line Items]
Maximum guarantees provided by related party for short-term and long-term borrowings from various domestic banks	$ 318,008,380	$ 292,380,900	¥ 2,030,000,000	¥ 2,060,000,000
Champion era enterprises limited [Member]
RELATED PARTY BALANCES AND TRANSACTIONS [Line Items]
Interest rate (as a percent)	5.00%			5.00%

COMMITMENTS AND CONTINGENCIES (Narrative) (Details)	Dec. 31, 2016 USD ($)
Purchase commitments [Member] \| Purchase agreement, minimum amount over next two years [Member]
COMMITMENTS AND CONTINGENCIES [Line Items]
Outstanding commitments	$ 32,797,550

COMMITMENTS AND CONTINGENCIES (Schedule of Product Warranty Activity) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Product warranty activity
Beginning balance	$ 36,023,946	$ 31,778,365
Warranty provision	5,774,308	8,815,974
Revision of warranty costs	(4,429,833)	(3,249,623)
Warranty expense incurred		(18,132)
Foreign exchange effect	(2,309,448)	(1,302,638)
Ending balance	$ 35,058,973	$ 36,023,946

COMMITMENTS AND CONTINGENCIES (Legal Matters) (Narrative) (Details) € in Millions, ¥ in Millions, £ in Millions, $ in Millions	1 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2015 CNY (¥)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2016 GBP (£)	Dec. 31, 2016 EUR (€)	May 31, 2016
Legal matters [Line Items]
Amount of remainder of the refundable deposit retained	$ 5.8	¥ 36.5
Noncontrolling Interest, Ownership Percentage by Parent							100.00%
Jiangsu Shuangliang against Sichuan ReneSola [Member]
Legal matters [Line Items]
Damages sought			$ 5.2	¥ 31.6
Sichuan ReneSola against Jiangsu Shuangliang [Member]
Legal matters [Line Items]
Damages sought			8.9	55.7
Penalty sought			1.1	¥ 6.7
Renesola UK Ltd [Member]
Legal matters [Line Items]
Accrual for Taxes Other than Income Taxes			1.7		£ 1.2
Renesola Deutschland Gmbh [Member]
Legal matters [Line Items]
Accrual for Taxes Other than Income Taxes			$ 13.1			€ 11.8

COMMITMENTS AND CONTINGENCIES (Guarantee) (Details) - Loan Facilities [Member] - ReneSola Zhejiang Co Ltd [Member] - Zhengjiang Ruixu [Member] - USD ($)	12 Months Ended
	Dec. 31, 2016	Mar. 31, 2014
Portion One [Member]
Guarantor Obligations [Line Items]
Guarantee obligations, amount		$ 26,573,535
Guarantee obligation, period	11 years 6 months
Portion Two [Member]
Guarantor Obligations [Line Items]
Guarantee obligations, amount		$ 42,632,880
Guarantee obligation, period	11 years 3 months

SEGMENT REPORTING (Narrative) (Details)	12 Months Ended
SEGMENT REPORTING (Narrative) (Details)	Dec. 31, 2016
Number of principal reportable business segments	3

SEGMENT REPORTING (Schedule of the Company's Revenues Generated from Each Segment) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Company's revenues generated from each segment [Line Items]
Net sales	$ 929,836,289	$ 1,282,031,446	$ 1,561,497,028
Gross profit	109,496,082	187,873,844	209,283,285
Other [Member]
Company's revenues generated from each segment [Line Items]
Net sales	45,708,768	1,044,975	695,750
Gross profit	6,200,915	600,087	36,679
Elimination [Member]
Company's revenues generated from each segment [Line Items]
Net sales	(932,998,645)	(892,053,374)	(1,176,420,479)
Gross profit	(21,020,333)	13,818,412	(427,602)
Wafer [Member] \| Operating segment [Member]
Company's revenues generated from each segment [Line Items]
Net sales	1,018,667,813	1,032,418,596	1,416,614,234
Gross profit	79,317,633	62,884,189	71,483,745
Cell and module [Member] \| Operating segment [Member]
Company's revenues generated from each segment [Line Items]
Net sales	712,503,016	1,024,331,572	1,311,867,301
Gross profit	37,515,810	88,563,261	134,289,199
Solar power projects [Member] \| Operating segment [Member]
Company's revenues generated from each segment [Line Items]
Net sales	85,955,337	116,289,676	8,740,222
Gross profit	$ 7,482,057	$ 22,007,895	$ 3,901,264

SEGMENT REPORTING (Schedule of the Company's Revenues Generated from Each Product) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues generated from each product [Line Items]
Total	$ 929,836,289	$ 1,282,031,446	$ 1,561,497,028
Solar modules [Member]
Revenues generated from each product [Line Items]
Total	547,316,223	920,271,824	1,309,008,400
Solar wafers [Member]
Revenues generated from each product [Line Items]
Total	223,606,146	163,700,069	182,513,034
Solar power projects [Member]
Revenues generated from each product [Line Items]
Total	83,107,906	110,737,934
Other materials [Member]
Revenues generated from each product [Line Items]
Total	48,800,671	61,932,953	40,975,806
Solar cells [Member]
Revenues generated from each product [Line Items]
Total	5,873,645	8,266,709	12,422,486
Electricity [Member]
Revenues generated from each product [Line Items]
Total	2,847,431	5,649,282	8,740,222
Service revenue from tolling arrangement [Member]
Revenues generated from each product [Line Items]
Total	$ 18,284,267	$ 11,472,675	$ 7,837,080

SEGMENT REPORTING (Schedule of the Company's Revenues Generated by Geographic Location of Customers) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues generated by geographic location of customers [Line Items]
Total	$ 929,836,289	$ 1,282,031,446	$ 1,561,497,028
Asia Pacific Total [Member]
Revenues generated by geographic location of customers [Line Items]
Total	739,721,587	800,655,601	781,817,487
Mainland China [Member]
Revenues generated by geographic location of customers [Line Items]
Total	452,572,919	264,803,111	227,182,419
Taiwan [Member]
Revenues generated by geographic location of customers [Line Items]
Total	41,390,952	34,710,699	43,696,851
Australia [Member]
Revenues generated by geographic location of customers [Line Items]
Total	9,004,912	26,445,835	58,621,500
Singapore [Member]
Revenues generated by geographic location of customers [Line Items]
Total	28,060,571	23,478,282	10,506,110
Korea [Member]
Revenues generated by geographic location of customers [Line Items]
Total	7,342,063	8,765,334	21,120,646
India [Member]
Revenues generated by geographic location of customers [Line Items]
Total	117,189,159	135,768,107	51,256,611
Hong Kong [Member]
Revenues generated by geographic location of customers [Line Items]
Total	400,031	61,240	63,899
Thailand [Member]
Revenues generated by geographic location of customers [Line Items]
Total	3,121,450	7,767,452
Japan [Member]
Revenues generated by geographic location of customers [Line Items]
Total	80,639,530	298,855,541	369,369,451
Germany [Member]
Revenues generated by geographic location of customers [Line Items]
Total	3,612,885	53,603,098	147,261,159
GREECE [Member]
Revenues generated by geographic location of customers [Line Items]
Total		103,193	310,076
Belgium [Member]
Revenues generated by geographic location of customers [Line Items]
Total		18,252,371	1,164,431
America [Member]
Revenues generated by geographic location of customers [Line Items]
Total	23,507,186	50,176,517	170,717,859
Italy [Member]
Revenues generated by geographic location of customers [Line Items]
Total	944,844	4,013,709	5,781,328
France [Member]
Revenues generated by geographic location of customers [Line Items]
Total	2,882,919	3,529,467	89,635,307
Spain [Member]
Revenues generated by geographic location of customers [Line Items]
Total		202,527	39,246,414
Czech Republic [Member]
Revenues generated by geographic location of customers [Line Items]
Total		4,861,462	2,628,333
England [Member]
Revenues generated by geographic location of customers [Line Items]
Total	81,761,719	242,425,493	224,990,352
Netherlands [Member]
Revenues generated by geographic location of customers [Line Items]
Total	0	4,706,979	3,234,732
South Africa [Member]
Revenues generated by geographic location of customers [Line Items]
Total	5,769,575	17,068,687	13,912,446
Others [Member]
Revenues generated by geographic location of customers [Line Items]
Total	$ 71,635,574	$ 82,432,342	$ 80,797,104

SUBSEQUENT EVENTS (Details) ¥ in Millions, $ in Millions	1 Months Ended	12 Months Ended
SUBSEQUENT EVENTS (Details) ¥ in Millions, $ in Millions	Mar. 31, 2017 USD ($)	Dec. 31, 2015	Mar. 31, 2017 CNY (¥)
SUBSEQUENT EVENTS [Line Items]
Debt Instrument, Term		3 months
Subsequent event [Member]
SUBSEQUENT EVENTS [Line Items]
Amount of roll-over in short-term loans	$ 83.7
Notes Payable, Related Parties, Current	$ 4.3		¥ 30
Debt Instrument, Interest Rate, Stated Percentage	5.44%		5.44%
Debt Instrument, Term	6 months

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS (Schedule of Balance Sheets) (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 37,336,382	$ 38,045,225	$ 99,847,604	$ 86,772,678
Prepaid expenses and other current assets	22,838,138	27,805,783
Total current assets	507,494,021	637,750,306
Total assets	1,088,405,688	1,346,319,585
Current liabilities:
Amount due to subsidiaries	1,257,367	2,676,614
Other current liabilities	62,124,942	77,238,265
Warrant liabilities		577,500
Convertible notes payable-current		26,145,000
Total current liabilities	904,432,121	1,103,861,889
Total liabilities	1,022,259,908	1,234,385,673
Equity:
Common shares (500,000,000 shares; no par value shares authorized at December 31, 2015 and 2016; 203,331,288shares issued and 203,205,688 shares outstanding at December 31, 2015; 202,478,702 shares issued and 200,538,902 shares outstanding at December 31, 2016)	477,171,487	477,964,702
Treasury stock	513,137
Additional paid-in capital	8,229,330	7,669,350
Accumulated loss	(469,975,148)	(435,276,897)
Accumulated other comprehensive income	51,233,248	61,576,757
Total equity	66,145,780	111,933,912	135,156,319	169,016,544
Total liabilities and shareholders' equity	$ 1,088,405,688	$ 1,346,319,585
Common shares, shares authorized	500,000,000	500,000,000
Common shares, shares issued	202,478,702	203,331,288
Common shares, shares outstanding	200,538,902	203,205,688
RENESOLA LTD [Member]
Current assets:
Cash and cash equivalents	$ 22,143	$ 10,181,328	$ 1,327,697	$ 1,032,077
Prepaid expenses and other current assets	357,822	257,933
Deferred convertible notes issue costs-current		34,660
Total current assets	379,965	10,473,921
Investment in subsidiaries	170,945,179	213,430,832
Total assets	171,325,144	223,904,753
Current liabilities:
Amount due to subsidiaries	105,028,653	84,821,631
Other current liabilities	57,238	333,237
Warrant liabilities		577,500
Convertible notes payable-current		26,145,000
Total current liabilities	105,085,891	111,877,368
Income tax payable	93,473	93,473
Total liabilities	105,179,364	111,970,841
Equity:
Common shares (500,000,000 shares; no par value shares authorized at December 31, 2015 and 2016; 203,331,288shares issued and 203,205,688 shares outstanding at December 31, 2015; 202,478,702 shares issued and 200,538,902 shares outstanding at December 31, 2016)	477,171,487	477,964,702
Treasury stock	513,137
Additional paid-in capital	8,229,330	7,669,350
Accumulated loss	(469,975,148)	(435,276,897)
Accumulated other comprehensive income	51,233,248	61,576,757
Total equity	66,145,780	111,933,912
Total liabilities and shareholders' equity	$ 171,325,144	$ 223,904,753
Common shares, shares authorized	500,000,000	500,000,000
Common shares, shares issued	202,478,702	203,331,288
Common shares, shares outstanding	200,538,902	203,205,688

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS (Schedule of Statements of Income) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating expenses(income):
Sales and marketing	$ 47,463,930	$ 72,294,911	$ 93,067,159
General and administrative	51,458,708	59,290,266	67,293,891
Research and development	27,286,652	43,905,312	52,575,143
Other operating income	(6,265,543)	(16,919,975)	(11,870,403)
Total operating expenses	124,568,726	158,570,514	201,065,790
Loss from operations	(15,072,644)	29,303,330	8,217,495
Non-operating income(expense):
Interest income	2,353,343	2,875,075	5,009,687
Interest expense	(33,939,704)	(43,417,785)	(49,015,802)
Foreign exchange gains (losses)	8,872,806	(2,136,980)	(27,009,411)
Gains on derivative, net	4,591,991	(6,030,915)	6,057,941
Gains on repurchase of convertible notes	212,056	13,693,269	7,048,188
Fair value change of warrant liability	577,500	1,312,500	7,455,000
Loss before income tax, non-controlling interests	(32,404,652)	(4,401,506)	(33,983,673)
Income tax benefit	(2,293,599)	(673,616)	349,880
Net loss attributed to ReneSola Ltd	(34,698,251)	(5,075,122)	(33,630,021)
RENESOLA LTD [Member]
Operating expenses(income):
Sales and marketing	11,005	40,469	71,669
General and administrative	2,063,865	2,745,035	4,180,518
Research and development			9,189
Other operating income			(2,582,694)
Total operating expenses	2,074,870	2,785,504	1,678,682
Loss from operations	(2,074,870)	(2,785,504)	(1,678,682)
Non-operating income(expense):
Interest income	140	194	228
Interest expense	(1,285,370)	(3,361,077)	(5,631,282)
Foreign exchange gains (losses)	14,437	(76,586)	(26,628)
Gains on derivative, net		7,784,352	7,202,205
Gains on repurchase of convertible notes	212,056	13,693,269	7,048,188
Fair value change of warrant liability	577,500	1,312,500	7,455,000
Loss before income tax, non-controlling interests	(2,556,107)	16,505,835	14,295,000
Income tax benefit
Equity in losses of subsidiaries	(32,142,144)	(21,642,270)	(47,999,050)
Net loss attributed to ReneSola Ltd	$ (34,698,251)	$ (5,075,122)	$ (33,630,021)

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS (Schedule of Statements of Comprehensive Loss) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONDENSED FINANCIAL STATEMENTS [Line Items]
Net loss	$ (34,698,251)	$ (5,075,122)	$ (33,633,793)
Other comprehensive loss:
Foreign currency translation adjustment	(10,343,509)	(19,503,275)	(2,533,628)
Other comprehensive loss	(10,343,509)	(19,503,275)	(2,533,628)
Comprehensive loss	(45,041,760)	(24,578,397)	(36,163,649)
RENESOLA LTD [Member]
CONDENSED FINANCIAL STATEMENTS [Line Items]
Net loss	(34,698,251)	(5,075,122)	(33,630,021)
Other comprehensive loss:
Foreign currency translation adjustment	(10,343,509)	(19,503,275)	(2,533,628)
Other comprehensive loss	(10,343,509)	(19,503,275)	(2,533,628)
Comprehensive loss	$ (45,041,760)	$ (24,578,397)	$ (36,163,649)

SCHEDULE 1-RENESOLA LTD CONDENSED FINANCIAL STATEMENTS (Schedule of Statements of Cash Flows) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONDENSED FINANCIAL STATEMENTS [Line Items]
Net loss	$ (34,698,251)	$ (5,075,122)	$ (33,630,021)
Adjustments to reconcile net income to net cash used in operating activities:
Amortization of deferred convertible notes issue costs and premium	32,935	764,527	933,152
Gains from repurchase of convertible bond	(212,056)	(13,693,269)	(7,048,188)
Share-based compensation	746,980	1,527,494	2,240,126
Gains on derivatives	(4,591,991)	6,030,915	(6,057,941)
Fair value change of warrant liability	(577,500)	(1,312,500)	(7,455,000)
Changes in assets and liabilities :
Other long-term assets			(158,952)
Prepaid expenses and other current assets	(7,879,348)	15,169,401	40,319,263
Other current liabilities	117,836	(2,951,445)	9,224,022
Other long-term liabilities	(55,527)	(1,728,349)	(2,874,319)
Net cash provided by (used in) operating activities	27,533,879	2,209,607	(121,688,959)
Investing activities:
Net cash received from settlement of derivatives	1,889,873	(4,371,142)	4,397,504
Net cash provided by (used in) investing activities	42,159,931	(40,027,473)	115,460,987
Financing activities:
Proceeds from exercise of share option		640,680	993,329
Cash paid for repurchase of convertible notes	(25,931,219)	(54,376,600)	(9,809,860)
Cash paid for ADSs repurchase	(1,493,352)	(812,183)
Net cash provided by (used in) financing activities	(62,373,714)	(11,157,751)	13,048,666
Net increase (decrease) in cash and cash equivalents	(708,843)	(61,802,379)	13,074,926
Cash and cash equivalents, beginning of year	38,045,225	99,847,604	86,772,678
Cash and cash equivalents, end of year	37,336,382	38,045,225	99,847,604
RENESOLA LTD [Member]
CONDENSED FINANCIAL STATEMENTS [Line Items]
Net loss	(34,698,251)	(5,075,122)	(33,630,021)
Equity in losses of subsidiaries	32,142,144	21,642,270	47,999,050
Adjustments to reconcile net income to net cash used in operating activities:
Amortization of deferred convertible notes issue costs and premium	32,935	764,527	933,152
Gains from repurchase of convertible bond	(212,056)	(13,693,269)	(7,048,188)
Share-based compensation	746,980	1,466,181	2,166,097
Gains on derivatives		(7,784,352)	(7,202,205)
Fair value change of warrant liability	(577,500)	(1,312,500)	(7,455,000)
Changes in assets and liabilities :
Other long-term assets			(158,952)
Prepaid expenses and other current assets	(99,889)	(257,933)	313,310
Other current liabilities	(275,999)	(1,067,521)	(536,417)
Other long-term liabilities			(2,582,694)
Net cash provided by (used in) operating activities	(2,941,636)	(5,317,719)	(7,201,868)
Investing activities:
Investment in subsidiaries		(33,783)	(15,623)
Net cash received from settlement of derivatives		9,078,226	4,960,574
Net cash provided by (used in) investing activities		9,044,443	4,944,951
Financing activities:
Proceeds from exercise of share option		640,680	362,801
Cash paid for repurchase of convertible notes	(25,931,219)	(54,376,600)	(9,809,860)
Cash paid for ADSs repurchase	(1,493,352)	(812,184)
Receipt of loan from subsidiaries	20,207,022	59,675,011	11,999,596
Net cash provided by (used in) financing activities	(7,217,549)	5,126,907	2,552,537
Net increase (decrease) in cash and cash equivalents	(10,159,185)	8,853,631	295,620
Cash and cash equivalents, beginning of year	10,181,328	1,327,697	1,032,077
Cash and cash equivalents, end of year	$ 22,143	$ 10,181,328	$ 1,327,697