10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x Quarterly Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended: December 31, 2011

¨ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from to              to             .

Commission File Number: 0-19672

American Superconductor Corporation

(Exact name of registrant as specified in its charter)

Delaware	04-2959321
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
64 Jackson Road, Devens, Massachusetts	01434
(Address of principal executive offices)	(Zip Code)

(978) 842-3000

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨ (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

Shares outstanding of the Registrant’s common stock:

Common Stock, par value $0.01 per share	51,465,999
Class	Outstanding as of January 31, 2012

AMERICAN SUPERCONDUCTOR CORPORATION

INDEX

		Page No.
PART I—FINANCIAL INFORMATION
Item 1.	Financial Statements		3
	Unaudited Condensed Consolidated Balance Sheets as of December 31, 2011 and March 31, 2011		3
	Unaudited Condensed Consolidated Statements of Operations for the three and nine months ended December 31, 2011 and 2010		4
	Unaudited Condensed Consolidated Statements of Comprehensive (Loss) Income for the three and nine months ended December 31, 2011 and 2010		5
	Unaudited Condensed Consolidated Statements of Cash Flows for the nine months ended December 31, 2011 and 2010		6
	Notes to Unaudited Condensed Consolidated Financial Statements		7
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		34
Item 4.	Controls and Procedures		35
PART II—OTHER INFORMATION
Item 1.	Legal Proceedings		37
Item 1A.	Risk Factors		39
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		39
Item 6.	Exhibits		39
Signature			40

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AMERICAN SUPERCONDUCTOR CORPORATION

PART I — FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands)

	December 31, 2011			March 31, 2011
ASSETS
Current assets:
Cash and cash equivalents	$	58,605		$	123,783
Marketable securities		5,261			116,126
Accounts receivable, net		14,764			15,259
Inventory		34,021			25,828
Prepaid expenses and other current assets		29,789			32,759
Restricted cash		9,049			5,566
Deferred tax assets		484			484
Total current assets		151,973			319,805
Property, plant and equipment, net		94,073			96,494
Intangibles, net		8,662			7,054
Restricted cash		2,540			—
Deferred tax assets		5,840			5,840
Other assets		12,275			12,016
Total assets	$	275,363		$	441,209
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable and accrued expenses	$	39,075		$	90,273
Adverse purchase commitments		28,763			38,763
Deferred revenue		15,246			10,304
Deferred tax liabilities		5,840			5,840
Total current liabilities		88,924			145,180
Deferred revenue		1,921			2,181
Deferred tax liabilities		484			484
Other		969			509
Total liabilities		92,298			148,354
Commitments and contingencies (Note 10)
Stockholders’ equity:
Common stock		515			507
Additional paid-in capital		894,129			885,704
Treasury stock		(271	)		—
Accumulated other comprehensive income		1,525			3,817
Accumulated deficit		(712,833	)		(597,173	)
Total stockholders’ equity		183,065			292,855
Total liabilities and stockholders’ equity	$	275,363		$	441,209

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

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AMERICAN SUPERCONDUCTOR CORPORATION

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

	Three months ended December 31						Nine months ended December 31,
	2011			2010			2011			2010
Revenues	$	18,058		$	31,570		$	47,916		$	226,853
Cost and operating expenses:
Cost of revenues		18,918			31,528			57,810			149,167
Research and development		5,928			8,417			21,339			23,610
Selling, general and administrative		15,402			14,192			54,952			46,724
Write-off of advance payment		—			—			20,551			—
Amortization of acquisition related intangibles		287			393			891			1,154
Restructuring and impairments		4,092			—			8,393			—
Total cost and operating expenses		44,627			54,530			163,936			220,655
Operating (loss) income		(26,569	)		(22,960	)		(116,020	)		6,198
Interest (expense) income, net		(11	)		171			232			549
Other income, net		393			2,136			1,313			4,745
(Loss) income before income tax expense (benefit)		(26,187	)		(20,653	)		(114,475	)		11,492
Income tax expense (benefit)		84			(2,495	)		1,185			12,642
Net loss	$	(26,271	)	$	(18,158	)	$	(115,660	)	$	(1,150	)
Net loss per common share
Basic	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)
Diluted	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)
Weighted average number of common shares outstanding
Basic		50,933			48,068			50,789			46,017
Diluted		50,933			48,068			50,789			46,017

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

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AMERICAN SUPERCONDUCTOR CORPORATION

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME

(In thousands)

	Three months ended						Nine months ended
	December 31,						December 31,
	2011			2010			2011			2010
Net loss	$	(26,271	)	$	(18,158	)	$	(115,660	)	$	(1,150	)
Other comprehensive loss, net of tax:
Foreign currency translation losses		(1,157	)		(5,386	)		(2,264	)		(1,215	)
Unrealized (losses) gains on cash flow hedges		—			(1,243	)		—			76
Unrealized losses on investments		(17	)		(42	)		(28	)		(96	)
Total other comprehensive loss, net of tax		(1,174	)		(6,671	)		(2,292	)		(1,235	)
Comprehensive loss	$	(27,445	)	$	(24,829	)	$	(117,952	)	$	(2,385	)

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

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AMERICAN SUPERCONDUCTOR CORPORATION

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Nine months ended December 31,
	2011			2010
Cash flows from operating activities:
Net loss	$	(115,660	)	$	(1,150	)
Adjustments to reconcile net loss to net cash used in operations:
Depreciation and amortization		10,875			7,990
Stock-based compensation expense		7,697			10,311
Provision for excess and obsolete inventory		2,150			2,667
Adverse purchase commitment losses (recoveries), net		73			—
Allowance for doubtful accounts		—			25
Write-off of advance payment		20,551			—
Write-off of prepaid value added taxes		—			550
Restructuring charges, net of payments		2,721			—
Impairment of long-lived assets		2,829			—
Deferred income taxes		—			(3,902	)
Other non-cash items		2,227			2,025
Changes in operating asset and liability accounts:
Accounts receivable		(1,262	)		40,431
Inventory		(10,419	)		(42,934	)
Prepaid expenses and other current assets		3,244			(16,973	)
Accounts payable and accrued expenses		(63,554	)		4,945
Deferred revenue		5,254			(20,027	)
Net cash used in operating activities		(133,274	)		(16,042	)
Cash flows from investing activities:
Purchase of property, plant and equipment		(9,332	)		(30,690	)
Purchase of marketable securities		—			(71,763	)
Proceeds from sales and maturities of marketable securities		110,667			47,462
Change in restricted cash		(6,036	)		250
Purchase of intangible assets		(3,893	)		(2,001	)
Purchase of minority investments		(1,800	)		(8,000	)
Advance payment for previously planned acquisition		(20,551	)		—
Change in other assets		(734	)		(30	)
Net cash provided by (used in) investing activities		68,321			(64,772	)
Cash flows from financing activities:
Payments in lieu of issuance of common stock for payroll taxes		(271	)		—
Proceeds from public equity offering, net		—			155,240
Proceeds from exercise of employee stock options and ESPP		150			7,350
Net cash (used in) provided by financing activities		(121	)		162,590
Effect of exchange rate changes on cash and cash equivalents		(104	)		(351	)
Net (decrease) increase in cash and cash equivalents		(65,178	)		81,427
Cash and cash equivalents at beginning of period		123,783			87,594
Cash and cash equivalents at end of period	$	58,605		$	169,021
Supplemental schedule of cash flow information:
Cash paid for income taxes, net of refunds		13,482			13,660
Non-cash contingent consideration in connection with acquisitions		—			10,003
Non-cash issuance of common stock		586			637

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

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AMERICAN SUPERCONDUCTOR CORPORATION

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1.      Description of the Business and Basis of Presentation

American Superconductor Corporation (“AMSC” or the “Company”) was founded on April 9, 1987. The Company is a leading provider of megawatt-scale solutions that lower the cost of wind power and enhance the performance of the power grid. In the wind power market, the Company enables manufacturers to field wind turbines through its advanced engineering, support services and power electronics products. In the power grid market, the Company enables electric utilities and renewable energy project developers to connect, transmit and distribute power through its transmission planning services and power electronics and superconductor-based products. The Company’s wind and power grid products and services provide exceptional reliability, security, efficiency and affordability to its customers.

These unaudited condensed consolidated financial statements of the Company have been prepared in accordance with the Securities and Exchange Commission’s (“SEC”) instructions to Form 10-Q. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been condensed or omitted pursuant to those instructions. The year-end condensed balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The unaudited condensed consolidated financial statements, in the opinion of management, reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of the results for the interim periods ended December 31, 2011 and 2010 and the financial position at December 31, 2011. The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions are eliminated in consolidation. Certain reclassifications of prior year amounts have been made to conform to current year presentation. These reclassifications had no effect on net income, cash flows from operating activities or stockholders’ equity.

The Company operates its business in two market-facing business units: Wind and Grid. The Company believes this market-centric structure enables it to effectively anticipate and meet the needs of wind turbine manufacturers, power generation project developers and electric utilities.

• Wind. Through its Windtec Solutions, the Wind business segment enables manufacturers to field wind turbines with exceptional power output, reliability and affordability. The Company licenses its highly engineered wind turbine designs, provides extensive customer support services and supplies advanced power electronics and control systems to wind turbine manufactures. The Company’s design portfolio includes a broad range of drive trains and power ratings up to 10 megawatts. The Company believes its unique engineering capabilities, ranging from bearings to advanced synchronous generators to blades, enables it to provide its partners with highly-optimized wind turbine platforms. Furthermore, these designs and support services typically lead to sales of its power electronics and software-based control systems, which are designed for optimized performance, efficiency and grid compatibility.

• Grid. Through its Gridtec Solutions, the Grid business segment enables electric utilities and renewable energy project developers to connect, transmit and distribute power with exceptional efficiency, reliability and affordability. The Company provides transmission planning services that allow it to identify power grid congestion, poor power quality and other risks, which helps it determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems and transmission and distribution cable systems.

On March 12, 2011, the Company entered into a Share Purchase Agreement, by and among the Company and the shareholders of The Switch Engineering Oy, a power technologies company headquartered in Finland (“The Switch”), which was amended on June 29, 2011 (as amended, the “Agreement”). Pursuant to the Agreement, the Company agreed to acquire all of the outstanding shares of The Switch. On October 28, 2011, the Company and The Switch entered into a termination agreement pursuant to which the parties mutually agreed to terminate the Agreement due to adverse market conditions for a financing required to fund the acquisition. Under the termination agreement, The Switch retained a $20.6 million advance payment as a break-up fee. As a result, the Company recorded a write-off of the advance payment during the nine months ended December 31, 2011.

At December 31, 2011, the Company had cash, cash equivalents, and marketable securities of $63.9 million. The Company has experienced a substantial decline in revenues and incurred a net loss of $115.7 million during the nine months ended December 31, 2011. The Company’s business plan anticipates a substantial use of cash from operations in its fiscal year ending March 31, 2012 in light of the difficult and uncertain current economic environment in China, the significant

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restructuring actions undertaken and the slowdown in the Chinese wind power market, which has accounted for more than two-thirds of the Company’s revenues in recent fiscal years. At December 31, 2011, the Company has accrued liabilities related to adverse purchase commitments for inventory totaling $28.8 million. From April 1, 2011 through the date of this filing, the Company has reduced its global workforce by approximately 50%, which is expected to result in annual savings of approximately $50 million. As of December 31, 2011, the Company has a global workforce of over 400 persons. The Company’s cost reduction efforts and anticipated revenue growth are expected to result in a substantial reduction in cash used for operations during the fiscal year ended March 31, 2013. The Company plans to continue to closely monitor its expenses and if required, will further reduce operating costs and capital spending to enhance liquidity. The Company is working with its inventory suppliers to delay cash settlements and, reduce the gross liability associated with its adverse purchase commitments. The Company believes that its available cash, together with additional reductions in operating costs and capital expenditures as necessary, will be sufficient to fund its operations, capital expenditures and other cash requirements for the next twelve months. To bolster its long-term liquidity, the Company intends to seek financing through means that may include public and private equity offerings, debt financings, and other financing alternatives. However, there can be no assurance that financing will be available on commercially acceptable terms or at all. The Company’s liquidity is highly dependent on its ability to profitably grow its revenues, successfully manage its adverse purchase order commitments and raise additional capital as required.

The results of operations for an interim period are not necessarily indicative of the results of operations to be expected for the fiscal year. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the fiscal year ended March 31, 2011 (fiscal 2010) which are contained in the Company’s Annual Report on Form 10-K.

The Company’s fiscal year begins on April 1 and ends on March 31. This document refers to fiscal 2011, which is defined as the period beginning on April 1, 2011 and concluding on March 31, 2012. The third quarter of fiscal 2011 began on October 1, 2011 and concluded on December 31, 2011.

2.      Stock-Based Compensation

The Company accounts for its stock-based compensation at fair value. The following table summarizes stock-based compensation expense by financial statement line item for the three and nine months ended December 31, 2011 and 2010 (in thousands):

	Three months ended December 31,					Nine months ended December 31,
	2011		2010			2011		2010
Cost of revenues	$	138	$	(6	)	$	908	$	828
Research and development		623		237			1,948		1,396
Selling, general and administrative		1,357		2,017			4,841		7,849
Total	$	2,118	$	2,248		$	7,697	$	10,073

During the nine months ended December 31, 2011, the Company granted approximately 815,000 and 408,000 shares of stock options and restricted stock, respectively, to employees under the 2007 Stock Incentive Plan. The restricted stock granted during the nine months ended December 31, 2011 includes approximately 109,000 shares of performance-based restricted stock, which will vest upon achievement of certain financial performance measurements. The Company recognizes the fair value of the performance based awards over the estimated period of each award for which the achievement of the performance measures are probable to occur. As of December 31, 2011, the Company has assessed the weighted average probability for these awards as likely to occur and has recorded expenses accordingly. The remaining shares granted vest upon the passage of time, generally three years. For awards that vest upon the passage of time, expense is being recorded over the vesting period.

The estimated fair value of the Company’s stock-based awards, less expected annual forfeitures, is amortized over the awards’ service period. The total unrecognized compensation cost for unvested outstanding stock options was $7.4 million as of December 31, 2011. This expense will be recognized over a weighted average expense period of approximately 2.1 years. The total unrecognized compensation cost for unvested outstanding restricted stock was $4.0 million as of December 31, 2011. This expense will be recognized over a weighted average expense period of approximately 1.7 years.

8

The weighted-average assumptions used in the Black-Scholes valuation model for stock options granted during the three and nine months ended December 31, 2011 and 2010 are as follows:

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Expected volatility		79.7	%		61.4	%		69.7	%		65.5	%
Risk-free interest rate		1.1	%		2.4	%		1.8	%		2.1	%
Expected life (years)		5.9			6.1			5.9			6.1
Dividend yield		None			None			None			None

The expected volatility rate was estimated based on an equal weighting of the historical volatility of the Company’s common stock and the implied volatility of the Company’s traded options. The expected term was estimated based on an analysis of the Company’s historical experience of exercise, cancellation, and expiration patterns. The risk-free interest rate is based on the average of the five and seven year U.S. Treasury rates.

In conjunction with the departure of certain former executive officers, the Company agreed to modify certain vested awards by extending the period over which two former officers would be entitled to exercise stock options and accelerated the vesting of certain other outstanding awards for one former officer. Accordingly, the Company recorded stock-based compensation expense related to these modifications of $0.9 million in the nine months ended December 31, 2011.

3.      Computation of Net (Loss) Income per Common Share

Basic net (loss) income per share (“EPS”) is computed by dividing net (loss) income by the weighted-average number of common shares outstanding for the period. Where applicable, diluted EPS is computed by dividing the net (loss) income by the weighted-average number of common shares and dilutive common equivalent shares outstanding during the period, calculated using the treasury stock method. Common equivalent shares include the effect of restricted stock, exercise of stock options and warrants and contingently issuable shares. For the three and nine months ended December 31, 2011 and 2010, 2.4 million shares and 2.0 million shares, respectively, and 2.4 million shares and 2.0 million shares, respectively, were not included in the calculation of diluted EPS as they were considered anti-dilutive.

The following table reconciles the numerators and denominators of the earnings per share calculation for the three and nine months ended December 31, 2011 and 2010 (in thousands, except per share data):

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Numerator:
Net loss	$	(26,271	)	$	(18,158	)	$	(115,660	)	$	(1,150	)
Denominator:
Weighted-average shares of common stock outstanding		51,459			48,731			51,120			46,667
Weighted-average shares subject to repurchase		(526	)		(663	)		(331	)		(650	)
Shares used in per-share calculation — basic		50,933			48,068			50,789			46,017
Shares used in per-share calculation — diluted		50,933			48,068			50,789			46,017
Net loss per share — basic	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)
Net loss per share — diluted	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)

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4.      Fair Value Measurements

A valuation hierarchy for disclosure of the inputs to valuation used to measure fair value has been established. This hierarchy prioritizes the inputs into three broad levels as follows:

Level 1 -	Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.
Level 2 -	Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).
Level 3 -	Unobservable inputs that reflect the Company’s assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data.

A financial asset’s or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

The Company presents financial asset and liability activity on a gross basis within the Level 3 measurement roll-forward and details of transfers in and out of Level 1 and 2 measurements. Changes in the hierarchy of financial assets and liabilities from its current level will be reflected in the period during which the pricing methodology of such investment changes. Disclosure of the transfer of securities from Level 1 to Level 2 or Level 3 will be made in the event that the related security is significant to total cash and investments. The Company did not have any transfers of assets and liabilities between Level 1 and Level 2 of the fair value measurement hierarchy during the three or nine months ended December 31, 2011.

The following table provides the assets carried at fair value, measured as of December 31, 2011 and March 31, 2011 (in thousands):

	Total Carrying Value		Quoted Prices in Active Markets (Level 1)		Using Significant Other Observable Inputs (Level 2)		Using Significant Unobservable Inputs (Level 3)
December 31, 2011:
Assets:
Cash equivalents	$	38,474	$	38,474	$	—	$	—
Short-term commercial paper		5,261		—		5,261		—
	Total Carrying Value		Quoted Prices in Active Markets (Level 1)		Using Significant Other Observable Inputs (Level 2)		Using Significant Unobservable Inputs (Level 3)
March 31, 2011:
Assets:
Cash equivalents	$	49,837	$	49,837	$	—	$	—
Short-term government-backed securities		76,371		—		76,371		—
Short-term commercial paper		39,755		—		39,755		—
Derivatives		3,087		—		3,087		—

Valuation Techniques

Cash Equivalents

Cash equivalents consist of highly liquid instruments with maturities of three months or less that are regarded as high quality, low risk investments and are measured using such inputs as quoted prices, and are classified within Level 1 of the valuation hierarchy. Cash equivalents consist principally of certificates of deposits and money market accounts.

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Marketable Securities

Marketable securities consist primarily of government-backed securities and commercial paper and are measured using such inputs as quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset (for example, interest rates and yield curves observable at commonly quoted intervals), and inputs that are derived principally from or corroborated by observable market data by correlation or other means, and are classified within Level 2 of the valuation hierarchy. The Company’s marketable securities generally have maturities of greater than three months from original purchase date but less than twelve months from the date of the balance sheet. The Company determines the appropriate classification of its marketable securities at the time of purchase and re-evaluates such classification as of each balance sheet date. All marketable securities are considered available-for-sale and are carried at fair value. The Company periodically reviews the realizability of each short-term and long-term marketable security when impairment indicators exist with respect to the security. If an other-than-temporary impairment of value of the security exists, the carrying value of the security is written down to its estimated fair value.

Derivatives

The derivatives entered into by the Company are valued using over-the-counter quoted market prices for similar instruments, and are classified within Level 2 of the valuation hierarchy.

5.      Accounts Receivable

Accounts receivable consisted of the following (in thousands):

	December 31, 2011			March 31, 2011
Accounts receivable (billed)	$	11,708		$	10,938
Accounts receivable (unbilled)		3,308			5,004
Less: Allowance for doubtful accounts		(252	)		(683	)
Accounts receivable, net	$	14,764		$	15,259

The Company records bank acceptance notes receivable arranged with third-party financial institutions by certain customers to settle their transactions within prepaid expenses and other current assets. These notes are typically non-interest bearing and generally have maturities of less than six months. The carrying amount of notes receivable approximate their fair values. The Company had notes receivable outstanding of $3.2 million and $2.0 million as of December 31, 2011 and March 31, 2011, respectively.

6.      Inventory

The components of inventory are as follows (in thousands):

	December 31, 2011		March 31, 2011
Raw materials	$	10,279	$	17,100
Work-in-process		4,844		2,432
Finished goods		15,683		3,915
Deferred program costs		3,215		2,381
Net inventory	$	34,021	$	25,828

The Company recorded inventory write-downs of approximately $0.7 million and $2.2 million in the three and nine months ended December 31, 2011, respectively.

Deferred program costs as of December 31, 2011 and March 31 2011 primarily represent costs incurred on D-VAR turnkey projects and programs accounted for under contract accounting where the Company needs to complete development programs before revenue and costs will be recognized.

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7.      Product Warranty

The Company generally provides a one to three-year warranty on its products, commencing upon installation. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience.

Product warranty activity was as follows (in thousands):

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Balance at beginning of period	$	7,055		$	7,374		$	7,907		$	6,431
Change in accruals for warranties during the period		(300	)		2,193			(774	)		6,533
Settlements during the period		(482	)		(1,119	)		(860	)		(4,516	)
Balance at end of period	$	6,273		$	8,448		$	6,273		$	8,448

The Company includes warranty period expirations as changes in accruals for warranties in the table above. The Company includes the warranty accrual within accounts payable and accrued expenses in the unaudited condensed consolidated balance sheets.

8.      Income Taxes

The Company recorded income tax expense of less than $0.1 million and $1.2 million for the three and nine months ended December 31, 2011, respectively, and the Company recorded an income tax benefit of $2.5 million and income tax expense of $12.6 million for the three and nine months ended December 31, 2010, respectively. The Company has provided a valuation allowance against all net deferred tax assets as of December 31, 2011, as it is more likely than not that its net deferred tax assets are not currently realizable due to the net operating losses incurred by the Company since its inception in the U.S., its significant write-offs in the fiscal year ended March 31, 2011 and the losses that are forecasted in certain foreign jurisdictions in the future.

During the nine months ended December 31, 2011, the Company recorded additional income tax expense of $0.8 million for uncertain tax positions related to its Austrian subsidiary.

9.      Restructuring and Impairments

Restructuring

The Company accounts for charges resulting from operational restructuring actions in accordance with ASC Topic 420, Exit or Disposal Cost Obligations (“ASC 420”) and ASC Topic 712, Compensation—Nonretirement Postemployment Benefits (“ASC 712”). In accounting for these obligations, the Company is required to make assumptions related to the amounts of employee severance, benefits, and related costs and the time period over which leased facilities will remain vacant, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation arises. These estimates are reviewed and revised as facts and circumstances dictate; changes in these estimates could have a material effect on the amount accrued on the consolidated balance sheet.

The Company initiated restructuring activities in order to reorganize global operations, streamline various functions of the business, and reduce its global workforce to better reflect the demand for its products. From April 1, 2011 through the date of this filing, the Company has reduced its global workforce by approximately 50%, which is expected to generate annualized savings of more than $50 million annually. During the three and nine months ended December 31, 2011, the Company incurred costs associated with the workforce reduction consisting of severance pay, outplacement services, medical benefits, and other related benefits. As a result, for the three and nine months ending December 31, 2011, the Company recorded employee severance and benefit costs of $2.2 million and $5.4 million, respectively. These charges are expected to be paid through the fiscal year ending March 31, 2012.

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The following table presents restructuring charges and cash payments (in thousands):

	Severance pay and benefits			Facility exit costs			Total
Accrued restructuring balance at October 1, 2011	$	2,076		$	127		$	2,203
Charges to operations		2,181			—			2,181
Cash payments		(1,647	)		(16	)		(1,663	)
Accrued restructuring balance at December 31, 2011	$	2,610		$	111		$	2,721
Accrued restructuring balance at April 1, 2011	$	—		$	—		$	—
Charges to operations		5,437			127			5,564
Cash payments		(2,827	)		(16	)		(2,843	)
Accrued restructuring balance at December 31, 2011	$	2,610		$	111		$	2,721

In addition, during the nine months ended December 31, 2011 the Company consolidated certain of its business operations in Europe to reduce overall facility costs. The consolidation plan entailed vacating approximately 8,937 square feet of occupied space in Klagenfurt, Austria and plans to vacate approximately 3,300 square feet of occupied space in Nuremburg, Germany. The Klagenfurt facility closure was accounted for in accordance with ASC 420, pursuant to which the Company recorded a liability equal to the fair value of the remaining lease payments as of the cease-use date. Fair value was determined based upon the discounted present value of remaining lease rentals (using a discount rate of 10.1%) for the space no longer occupied, considering future estimated potential sublease income. As a result, the Company recorded facility exit costs of $0.1 million related to the remaining lease commitment on the leased space. These charges are expected to be paid through fiscal 2012. As of December 31, 2011, the Company had not ceased using the Nuremburg facility and therefore recorded no liability for remaining lease payments. All restructuring charges discussed above are included within restructuring and impairments in the Company’s unaudited condensed consolidated statements of operations. The Company includes accrued restructuring within accounts payable and accrued expenses in the unaudited condensed consolidated balance sheets.

Impairments

The Company periodically evaluates its long-lived assets consisting principally of fixed assets and amortizable intangible assets for potential impairment. In accordance with the applicable accounting guidance for the treatment of long-lived assets, the Company reviews the carrying value of its long-lived assets or asset group that is held and used, including intangible assets subject to amortization, for impairment whenever events and circumstances indicate that the carrying value of the assets may not be recoverable. Under the held and used approach, the asset or asset group to be tested for impairment should represent the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. The Company evaluates its long-lived assets whenever events or circumstances suggest that the carrying amount of an asset or group of assets may not be recoverable from the estimated undiscounted future cash flows.

In November 2011, the Company completed certain restructuring activities to reduce costs and to align its strategic priorities to capitalize on near and long-term opportunities in its Grid segment. As a result, the Company concluded that there were indicators of potential impairment of certain long-lived assets in its Grid segment and therefore conducted an assessment of the recoverability of these assets during the three months ended December 31, 2011 by comparing the carrying value of the assets to the pre-tax undiscounted cash flows estimated to be generated by those assets over their remaining book useful lives. Based on the calculation performed by management, the sum of the undiscounted cash flows forecasted to be generated by certain assets within its Grid segment were less than the carrying value of those assets. Therefore, there was an indication that certain of the Company’s Grid assets were impaired and, as a result, the Company performed additional analysis. An evaluation of the level of impairment was made by comparing the implied fair value of those definite long-lived tangible and intangible assets of its Grid segment against their carrying values.

The fair values of the impacted property and equipment were based on what the Company could reasonably expect to sell each asset from the perspective of a market participant. The determination of the fair value of its property and equipment includes estimates and judgments regarding the marketability and ultimate sales price of individual assets. The Company utilized market data and approximations from comparable analyses to arrive at the estimated fair values of the impacted property and equipment. The fair values of amortization intangible assets related to completed technology were determined

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using the relief-from-royalty method over the estimated economic lives of those assets from the perspective of a market participant. During the three months ended December 31, 2011, the Company determined that certain of its Grid segment property, plant and equipment were impaired as their carrying value exceeded their fair value. Accordingly, the Company recorded an impairment charge of $1.7 million.

In addition, the Company recorded impairment charges of $0.2 million and $1.1 million during the three and nine months ended December 31, 2011, respectively, primarily related to long-lived assets for which there is no remaining future economic benefit as a result of the consolidation of operations in Europe.

10.    Commitments and Contingencies

Commitments

The Company periodically enters into non-cancelable purchase contracts in order to ensure the availability of materials to support production of its products. Purchase commitments represent enforceable and legally binding agreements with suppliers to purchase goods or services. The Company periodically assesses the need to provide for impairment on these purchase contracts and records a loss on purchase commitments when required. As of December 31, 2011, the Company has $28.8 million of adverse purchase commitments in excess of its estimated future demand from certain of its customers in China, which the Company has recorded as a liability. The Company recorded adverse purchase commitment recoveries of $0.1 million and losses of less than $0.1 million during the three and nine months ended December 31, 2011, respectively. Adverse purchase commitment recoveries in the three months ended December 31, 2011 are the result of reductions in commitments to purchase materials due to renegotiations with certain suppliers and are recorded against cost of revenues.

Contingencies

From time to time, the Company is involved in legal and administrative proceedings and claims of various types. The Company records a liability in its consolidated financial statements for these matters when a loss is known or considered probable and the amount can be reasonably estimated. The Company reviews these estimates each accounting period as additional information is known and adjusts the loss provision when appropriate. If a matter is both probable to result in liability and the amounts of loss can be reasonably estimated, the Company estimates and discloses the possible loss or range of loss. If the loss is not probable or cannot be reasonably estimated, a liability is not recorded in its consolidated financial statements.

Between April 6, 2011 and May 12, 2011, seven putative securities class action complaints were filed against the Company and two of its officers in the United States District Court for the District of Massachusetts; one complaint additionally asserted claims against the underwriters who participated in our November 12, 2010 securities offering. On June 7, 2011, the United States District Court for the District of Massachusetts consolidated these actions under the caption Lenartz v. American Superconductor Corporation, et al., Docket No. 1:11-cv-10582-WGY. On August 31, 2011, Lead Plaintiff, the Plumbers and Pipefitters National Pension Fund, filed a consolidated amended complaint against the Company, its officers and directors, and the underwriters who participated in our November 12, 2010 securities offering, asserting claims under sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated under the Securities Exchange Act of 1934, as well as under sections 11, 12(a)(2) and 15 of the Securities Act of 1933. The complaint alleges that during the relevant class period, the Company and its officers omitted to state material facts and made materially false and misleading statements relating to, among other things, its projected and recognized revenues and earnings, as well as its relationship with Sinovel Wind Group Co., Ltd. that artificially inflated the value of the Company’s stock price. The complaint further alleges that the Company’s November 12, 2010 securities offering contained untrue statements of material facts and omitted to state material facts required to be stated therein. The plaintiffs seek unspecified damages, rescindment of the Company’s November 12, 2010 securities offering, and an award of costs and expenses, including attorney’s fees.

Between May 4, 2011 and June 17, 2011, four putative shareholder derivative complaints were filed against the Company (as a nominal defendant) and certain of its directors in the United States District Court for the District of Massachusetts. On July 5, 2011, the District Court consolidated three of these actions, and that matter is now captioned In re American Superconductor Corporation Derivative Litigation, Docket No. 1:11-cv-10784-WGY. On June 1, 2011, the plaintiff in the fourth action, Marlborough Family Revocable Trust v. Yurek, et al., moved to voluntarily dismiss its complaint and refiled its complaint in Superior Court for the Commonwealth of Massachusetts, Middlesex County. On September 7, 2011, the Marlborough action and another putative shareholder derivative complaint filed in Superior Court for the Commonwealth of Massachusetts were consolidated. That consolidated matter is captioned Marlborough Family Revocable Trust v. Yurek, et al., Docket No. 11-1961. On January 12, 2012, an additional shareholder derivative complaint was filed in the Court of Chancery for the State of Delaware. That matter is captioned Krasnoff v. Budhraja, et al., Docket No. 7171. The allegations of the

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derivative complaints mirror the allegations made in the putative class action complaints described above. The plaintiffs purport to assert claims against the director defendants for breach of fiduciary duty, abuse of control, gross mismanagement and corporate waste. The plaintiffs seek unspecified damages on behalf of the Company, as well as an award of costs and expenses, including attorney’s fees.

With respect to the above referenced litigation matters, an estimate of loss or range of loss cannot be made. There are numerous factors that make it difficult to meaningfully estimate possible loss or range of loss at this stage of these litigation matters, including that: the proceedings are in relatively early stages, there are significant factual and legal issues to be resolved, information obtained or rulings made during the lawsuits could affect the methodology for calculation of rescission and the related statutory interest rate. In addition, with respect to claims where damages are the requested relief, no amount of loss or damages has been specified. Therefore, the Company is unable at this time to estimate possible losses. The Company believes that these litigations are without merit, and it intends to defend these actions vigorously.

On September 13, 2011, the Company commenced a series of legal actions in China against Sinovel Wind Group Co. Ltd. (“Sinovel”). The Company’s Chinese subsidiary, Suzhou AMSC Superconductor Co. Ltd., filed a claim for arbitration with the Beijing Arbitration Commission in accordance with the terms of the Company’s supply contracts with Sinovel. The case is captioned (2011) Jin Zhong An Zi No. 0693. On March 31, 2011, Sinovel refused to accept contracted shipments of 1.5 megawatt (MW) and 3 MW wind turbine core electrical components and spare parts that the Company was prepared to deliver. The Company alleges that these actions constitute material breaches of its contracts because Sinovel did not give it notice that it intended to delay deliveries as required under the contracts. Moreover, the Company alleges that Sinovel has refused to pay past due amounts for prior shipments of core electrical components and spare parts. The Company is seeking compensation for past product shipments (including interest) and monetary damages in the amount of approximately RMB 430 million ($67 million) due to Sinovel’s breaches of its contracts. The Company is also seeking specific performance of our existing contracts as well as reimbursement of all costs and reasonable expenses with respect to the arbitration. The value of the undelivered components under the existing contracts, including the deliveries refused by Sinovel in March 2011, amounts to approximately RMB 4.6 billion ($720 million).

On October 8, 2011, Sinovel filed with the Beijing Arbitration Commission an application under the caption (2011) Jing Zhong An Zi No. 0693, for a counterclaim against the Company for breach of the same contracts under which the Company filed its original arbitration claim. Sinovel claimed, among other things, that the goods supplied by the Company do not conform to the standards specified in the contracts and claimed damages in the amount of approximately RMB 370 million ($58 million). On October 17, 2011, Sinovel filed with the Beijing Arbitration Commission a request for change of counterclaim to increase its damage claim to approximately RMB 1 billion ($157 million). On December 22, 2011, Sinovel filed with the Beijing Arbitration Commission an additional request for change of counterclaim to increase its damages claim to approximately RMB 1.2 billion ($190 million). Deducting the RMB 430 million ($67 million) of past product shipments claimed by the Company, the net amount of damages claimed by Sinovel is approximately RMB 770 million ($120 million). The Company believes that Sinovel’s claims are without merit and it intends to defend these actions vigorously. Since the proceedings in this matter are in relatively early stages, the Company cannot reasonably estimate possible losses or range of losses at this time.

The Company also submitted a civil action application to the Beijing No. 1 Intermediate People’s Court under the caption (2011) Yi Zhong Min Chu Zi No. 15524, against Sinovel for software copyright infringement on September 13, 2011. The application alleges Sinovel’s unauthorized use of portions of the Company’s wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines and the binary code, or upper layer, of the Company’s software for the PM3000 power converters in 1.5MW wind turbines. In July 2011, a former employee of the Company’s AMSC Windtec GmbH subsidiary was arrested in Austria on charges of economic espionage and fraudulent manipulation of data. In September 2011, the former employee pled guilty to the charges, and he is currently serving a prison sentence. As a result of the Company’s internal investigation and a criminal investigation conducted by Austrian authorities, the Company believes that this former employee was contracted by Sinovel through an intermediary while employed by the Company and improperly obtained and transferred to Sinovel portions of its wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines. Moreover, the Company believes the former employee illegally used source code to develop for Sinovel a software modification to circumvent the encryption and remove technical protection measures on the PM3000 power converters in 1.5MW wind turbines in the field. The Company is seeking a cease and desist order with respect to the unauthorized copying, installation and use of its software, monetary damages of approximately RMB 38 million ($6 million) for our economic losses and reimbursement of all costs and reasonable expenses. The No. 1 Intermediate People’s Court accepted the case, which was necessary in order for the case to proceed. In November 2011, Sinovel filed a motion to remove this case from the Beijing No. 1 Intermediate People’s Court and transfer the matter to the Beijing Arbitration Commission. The Company is awaiting the court’s decision.

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The Company submitted a civil action application to the Beijing Higher People’s Court against Sinovel and certain of its employees for trade secret infringement on September 13, 2011 under the caption (2011) Gao Min Chu Zi No. 4193. The application alleges the defendants’ unauthorized use of portions of the Company’s wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines as described above with respect to the Copyright Action. The Company is seeking monetary damages of RMB 2.9 billion ($453 million) for the trade secret infringement as well as reimbursement of all costs and reasonable expenses. The Beijing Higher People’s Court accepted the case, which was necessary in order for the case to proceed. On December 22, 2011, the Beijing Higher People’s Court transferred this case to the Beijing No. 1 Intermediate People’s Court under the caption (2011) Gao Min Chu Zi No. 4193. The Company is currently awaiting notice from the Beijing No. 1 Intermediate People’s Court regarding the evidence submission deadline and the first hearing date.

On September 16, 2011, the Company filed a civil copyright infringement complaint in the Hainan Province No. 1 Intermediate People’s Court against Dalian Guotong Electric Co. Ltd. (“Guotong”), a supplier of power converter products to Sinovel, and Huaneng Hainan Power, Inc. (“Huaneng”), a wind farm operator that has purchased Sinovel wind turbines containing Guotong power converter products. The case is captioned (2011) Hainan Yi Zhong Min Chu Zi No. 62. The application alleges that the Company’s PM1000 converters in certain Sinovel wind turbines have been replaced by converters produced by Guotong. Because the Guotong converters are being used in wind turbines containing the Company’s wind turbine control software, the Company believes that its copyrighted software is being infringed. The Company is seeking a cease and desist order with respect to the unauthorized use of its software, monetary damages of RMB 1.2 million ($0.2 million) for its economic losses (with respect to Guotong only) and reimbursement of all costs and reasonable expenses. The court has accepted the case, which was necessary in order for the case to proceed. In addition, upon the request of the defendant Huaneng, Sinovel has been added by the court to this case as a defendant and Huaneng has been released from this case. In December 2011, Sinovel filed a jurisdiction opposition motion requesting dismissal by the Hainan Province No. 1 Intermediate People’s Court, saying the case should be governed by the Beijing Arbitration Commission. On February 3, 2012, the Company received the Civil Ruling from the court, which granted Sinovel’s motion, and dismissed the entire case. The Company plans to appeal the court’s ruling.

Ghodawat Energy Pvt Ltd (“Ghodawat”), a company registered in India carrying on the business of wind power development, lodged a Request for Arbitration with the Secretariat of the ICC International Court of Arbitration on May 12, 2011 and named AMSC Windtec GmbH (“AMSC Windtec”) as the Respondent. Under the Request for Arbitration, Ghodawat alleges that AMSC Windtec breached an agreement dated March 19, 2008 pursuant to which AMSC Windtec granted a license to Ghodawat to manufacture, use, sell, market, erect, commission and maintain certain wind turbines using its technical information and wind turbine design (the “License Agreement”). Under the Request for Arbitration, Ghodawat’s claims in this arbitration amount to approximately €18 million ($24 million). AMSC Windtec filed an Answer to Request for Arbitration and Counterclaim (“Answer and Counterclaim”), in which AMSC Windtec denied Ghodawat’s claims in their entirety. AMSC Windtec has also submitted counterclaims under the License Agreement against Ghodawat in the amount of approximately €6 million ($9 million). Ghodawat has filed a Reply to Answer to Request for Arbitration and Counterclaim in which it denies AMSC Windtec’s counterclaims. The arbitration proceedings are currently ongoing. The Company has recorded a loss contingency based on its assessment of probable losses on this claim; however this amount is immaterial to its consolidated financial statements.

Other

The Company enters into long-term construction contracts with customers that require the Company to obtain performance bonds. The Company is required to deposit an amount equivalent to some or all the face amount of the performance bonds into an escrow account until the termination of the bond. When the performance conditions are met, amounts deposited as collateral for the performance bonds are returned to the Company. In addition, the Company has various contractual arrangements in which minimum quantities of goods or services have been committed to be purchased on an annual basis.

As of December 31, 2011, the Company had two performance bonds in support of customer contracts. The total value of the outstanding performance bonds was $0.4 million with various expiration dates through October 2012. In the event that the payment is made in accordance with the requirements of any of these performance bonds, the Company would record the payment as an offset to revenue.

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At December 31, 2011, the Company had $9.0 million of restricted cash included in current assets and $2.5 million of restricted cash included in long-term assets. These amounts included in restricted cash represent deposits to secure letters of credit for various supply contracts. These deposits are held in interest bearing accounts.

The Company had unused, unsecured lines of credit consisting of €2.3 million (approximately $3.0 million) in Austria as of December 31, 2011. During the nine months ended December 31, 2011, the Company’s unsecured credit line with the Bank of China expired and it repaid borrowings on lines of credit of $4.6 million. There were no borrowings outstanding as of December 31, 2011.

11.    Equity Investments

Investment in Tres Amigas

On October 9, 2009, the Company made an investment in Tres Amigas LLC, a Delaware limited liability company (“Tres Amigas”), is focused on providing the first common interconnection of America’s three power grids to help the country achieve its renewable energy goals and facilitate the smooth, reliable and efficient transfer of green power from region to region, for $1.8 million, consisting of $0.8 million in cash and $1.0 million in AMSC common stock. On January 6, 2011 and May 20, 2011, the Company increased its minority position in Tres Amigas by investing an additional $1.8 million in cash on each date. As of December 31, 2011, the Company holds a 34% ownership interest in Tres Amigas.

The Company has determined that Tres Amigas is a variable interest entity (“VIE”) and that the Company is not the primary beneficiary of the VIE. Therefore, the Company has not consolidated Tres Amigas as of December 31, 2011. The investment is carried at the acquisition cost, plus the Company’s equity in undistributed earnings or losses. The Company’s maximum exposure to loss is limited to the Company’s recorded investment in this VIE. The Company’s investment in Tres Amigas is included in other assets on the consolidated balance sheet and the equity in undistributed losses of Tres Amigas is included in other income, net, on the consolidated statements of operations.

The net investment activity for the nine months ended December 31, 2011 is as follows (in thousands):

Balance at April 1, 2011	$	3,026
Purchase of minority investment		1,800
Minority interest in net losses		(741	)
Balance at December 31, 2011	$	4,085

Investment in Blade Dynamics Ltd.

On August 12, 2010, the Company acquired (through its Austrian subsidiary), a minority ownership position in Blade Dynamics Ltd. (“Blade Dynamics”), a designer and manufacturer of advanced wind turbine blades based on proprietary materials and structural technologies, for $8.0 million in cash. The Company uses the equity method of accounting for this investment since it does not have a controlling ownership interest in the operating and financial policies of Blade Dynamics. As such, the investment is carried at the acquisition cost, plus the Company’s equity in undistributed earnings or losses. The Company’s investment is included in other assets on the unaudited condensed consolidated balance sheets and the minority interest in net losses of Blade Dynamics is included in other income, net, on the unaudited condensed consolidated statements of operations. As of December 31, 2011, the Company holds a 25% ownership interest in Blade Dynamics. The net investment activity for the nine months ended December 31, 2011 is as follows (in thousands):

Balance at April 1, 2011	$	7,903
Minority interest in net losses		(880	)
Net foreign exchange rate impact		(561	)
Balance at December 31, 2011	$	6,462

12.    Business Segments

Business segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision-making group, in assessing performance and deciding how to allocate resources.

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The Company segments its business into two market-facing business units: Wind and Grid. The Company believes this market-centric structure enables it to more effectively anticipate and meet the needs of wind turbine manufacturers, power generation project developers and electric utilities.

• Wind. Through its Windtec Solutions, the Wind business segment enables manufacturers to field wind turbines with exceptional power output, reliability and affordability. The Company licenses its highly engineered wind turbine designs, provides extensive customer support services and supplies advanced power electronics and control systems to wind turbine manufactures. The Company’s design portfolio includes a broad range of drive trains and power ratings up to 10 megawatts. The Company believes its unique engineering capabilities, ranging from bearings to advanced synchronous generators to blades, enables it to provide its partners with highly-optimized wind turbine platforms. Furthermore, these designs and support services typically lead to sales of its power electronics and software-based control systems, which are designed for optimized performance, efficiency and grid compatibility.

• Grid. Through its Gridtec Solutions, the Grid business segment enables electric utilities and renewable energy project developers to connect, transmit and distribute power with exceptional efficiency, reliability and affordability. The Grid business unit provides transmission planning services that allow us to identify power grid congestion, poor power quality and other risks, which helps the Company determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems and transmission and distribution cable systems.

Prior to April 1, 2011, the Company segmented its operations through two technology-centric business units: AMSC Power Systems and AMSC Superconductors. AMSC Power Systems included all of its Wind products, as well as Grid products that regulate voltage for wind farm voltage electric utilities, renewable generation project developers and industrial operations. Solutions from the Company’s AMSC Superconductors business unit have been incorporated into its Grid business unit. All prior period segment disclosures have been revised to conform to management’s current view of the Company’s business segments.

The operating results for the two business segments are as follows (in thousands):

	Three months ended December 31,				Nine months ended December 31,
	2011		2010		2011		2010
Revenues:
Wind	$	10,125	$	10,840	$	27,836	$	183,162
Grid		7,933		20,730		20,080		43,691
Total	$	18,058	$	31,570	$	47,916	$	226,853

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Operating (loss) income:
Wind	($	14,014	)	($	12,494	)	($	54,719	)	$	51,499
Grid		(6,313	)		(8,189	)		(24,511	)		(35,166	)
Unallocated corporate expenses		(6,242	)		(2,277	)		(36,790	)		(10,135	)
Total	($	26,569	)	($	22,960	)	($	116,020	)	$	6,198

The accounting policies of the business segments are the same as those for the consolidated Company. The Company’s business segments have been determined in accordance with the Company’s internal management structure, which is organized based on operating activities. The Company evaluates performance based upon several factors, of which the primary financial measures are segment revenues and segment operating (loss) income. The disaggregated financial results of the segments reflect allocation of certain functional expense categories consistent with the basis and manner in which Company management

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internally disaggregates financial information for the purpose of assisting in making internal operating decisions. In addition, certain corporate expenses which the Company does not believe are specifically attributable or allocable to either of the two business segments have been excluded from the segment operating (loss) income.

For the three and nine months ended December 31, 2011, unallocated corporate expenses primarily consist of restructuring and impairment charges of $4.1 million and $8.4 million, respectively, and stock-based compensation expense of $2.1 million and $7.7 million, respectively. In addition, the nine months ended December 31, 2011 includes expense of $20.6 million for the write-off of an advanced payment to The Switch. Unallocated corporate expenses primarily consist of stock-based compensation expense of $2.2 million and $10.1 million for the three and nine months ended December 31, 2010, respectively.

Total assets for the two business segments are as follows (in thousands):

	December 31, 2011		March 31, 2011
Wind	$	89,370	$	145,464
Grid		70,285		67,081
Corporate assets		115,708		228,664
Total	$	275,363	$	441,209

The following table sets forth customers who represented 10% or more of the Company’s total revenues:

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Inox Wind, Ltd.		27	%		< 10	%		21	%		< 10	%
Doosan Heavy Industries & Construction Co Ltd.		12	%		< 10	%		15	%		< 10	%
Ergon Energy Corporation Limited		11	%		—			< 10	%		—
Vestas – Australian Wind Technology Ltd		< 10	%		44	%		< 10	%		< 10	%
Hyundai Heavy Industries Co., Ltd.		< 10	%		10	%		< 10	%		< 10	%
Shenyang Blower Works Group Co., Ltd.		< 10	%		11	%		< 10	%		< 10	%
Sinovel Wind Co., Ltd		—			—			—			66	%

13.    Recent Accounting Pronouncements

In December 2010, the FASB issued Accounting Standards Update (ASU) No. 2010-29, Business Combinations (Topic 805), Disclosure of Supplementary Pro forma Information for Business Combinations a consensus of the FASB Emerging Issues Task Force (ASC 2010-29). This amendment clarifies the periods for which pro forma financial information is presented. The disclosures include pro forma revenue and earnings of the combined entity for the current reporting period as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. If comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the comparable prior reporting period should be reported as though the acquisition date for all business combinations that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. ASU 2010-29 is effective prospectively for business combinations that occur on or after the beginning of the first annual reporting period beginning after December 15, 2010. The adoption of ASU 2010-29 did not have a material impact on the Company’s consolidated results of operations, financial condition, or cash flows.

In June 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. ASU 2011-05 requires entities to present net income and other comprehensive income in either a single continuous statement or in two separate, but consecutive, statements of net income and other comprehensive income. ASU 2011-05 is effective for fiscal years and interim periods beginning after December 15, 2011. The Company does not expect the adoption of ASU 2011-05 to have a material impact on the Company’s consolidated results of operations, financial condition, or cash flows.

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14.    Subsequent Events

The Company has performed an evaluation of subsequent events through the time of filing this Quarterly Report on Form 10-Q with the SEC, and has determined that there are no such events that are required to be disclosed.

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AMERICAN SUPERCONDUCTOR CORPORATION

MANAGEMENT’S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). For this purpose, any statements contained herein that relate to future events or conditions, including without limitation, the statements in Part II, “Item 1A. Risk Factors” and in Part I under “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and located elsewhere herein regarding industry prospects or our prospective results of operations or financial position, may be deemed to be forward-looking statements. Without limiting the foregoing, the words “believes,” “anticipates,” “plans,” “expects,” and similar expressions are intended to identify forward-looking statements. Such forward-looking statements represent management’s current expectations and are inherently uncertain. There are a number of important factors that could materially impact the value of our common stock or cause actual results to differ materially from those indicated by such forward-looking statements. Such factors include: a significant portion of our revenues has been derived from Sinovel Wind Group Co. Ltd., (“Sinovel”), which has stopped accepting scheduled deliveries and refused to pay amounts outstanding; the disruption in our relationship with Sinovel has materially and adversely affected our business and results of operations and if, as we expect, Sinovel continues to refuse to accept shipments from us, our business and results of operations will be further materially and adversely affected; we have a history of operating losses, and we may incur additional losses in the future; our operating results may fluctuate significantly from quarter to quarter and may fall below expectations in any particular fiscal quarter; adverse changes in domestic and global economic conditions could adversely affect our operating results; changes in exchange rates could adversely affect our results from operations; we have identified material weaknesses in our internal control over financial reporting and if we fail to remediate these weaknesses and maintain proper and effective internal controls over financial reporting, our ability to produce accurate and timely financial statements could be impaired and may lead investors and other users to lose confidence in our financial data; if we fail to implement our business strategy successfully, our financial performance could be harmed; we may not realize all of the sales expected from our backlog of orders and contracts; many of our revenue opportunities are dependent upon subcontractors and other business collaborators; our products face intense competition, which could limit our ability to acquire or retain customers; our success is dependent upon attracting and retaining qualified personnel and our inability to do so could significantly damage our business and prospects; we may acquire additional complementary businesses or technologies, which may require us to incur substantial costs for which we may never realize the anticipated benefits; our international operations are subject to risks that we do not face in the United States, which could have an adverse effect on our operating results; we depend on sales to customers in China, and global conditions could negatively affect our operating results or limit our ability to expand our operations outside of China; changes in China’s political, social, regulatory and economic environment may affect our financial performance; many of our customer relationships outside of the United States are, either directly or indirectly, with governmental entities, and we could be adversely affected by violations of the United States Foreign Corrupt Practices Act and similar worldwide anti-bribery laws outside the United States; we rely upon third party suppliers for the components and subassemblies of many of our Wind and Grid products, making us vulnerable to supply shortages and price fluctuations, which could harm our business; we are becoming increasingly reliant on contracts that require the issuance of performance bonds; problems with product quality or product performance may cause us to incur warranty expenses and may damage our market reputation and prevent us from achieving increased sales and market share; our success in addressing the wind energy market is dependent on the manufacturers that license our designs; growth of the wind energy market depends largely on the availability and size of government subsidies and economic incentives; there are a number of technological challenges that must be successfully addressed before our superconductor products can gain widespread commercial acceptance, and our inability to address such technological challenges could adversely affect our ability to acquire customers for our products; we have not manufactured our Amperium wire in commercial quantities, and a failure to manufacture our Amperium wire in commercial quantities at acceptable cost and quality levels would substantially limit our future revenue and profit potential; the commercial uses of superconductor products are limited today, and a widespread commercial market for our products may not develop; we have limited experience in marketing and selling our superconductor products and system-level solutions, and our failure to effectively market and sell our products and solutions could lower our revenue and cash flow; our contracts with the U.S. government are subject to audit, modification or termination by the U.S. government and include certain other provisions in favor of the government; the continued funding of such contracts remains subject to annual congressional appropriation which, if not approved, could reduce our revenue and lower or eliminate our profit; we may be unable to adequately prevent disclosure of trade secrets and other proprietary information; we have filed a demand for arbitration and other lawsuits against Sinovel regarding amounts we contend are due and owing and are in dispute; Sinovel has filed a counterclaim in the arbitration claiming damages; we cannot be certain as to the outcome of the proceedings against Sinovel; we have been named as a party to purported stockholder class actions and shareholder derivative complaints, and we may be named in additional litigation, all of which will require significant management time and attention, result in significant legal expenses and may

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result in an unfavorable outcome, which could have a material adverse effect on our business, operating results and financial condition; our technology and products could infringe intellectual property rights of others, which may require costly litigation and, if we are not successful, could cause us to pay substantial damages and disrupt our business; our patents may not provide meaningful protection for our technology, which could result in us losing some or all of our market position; third parties have or may acquire patents that cover the materials, processes and technologies we use or may use in the future to manufacture our Amperium products, and our success depends on our ability to license such patents or other proprietary rights; and our common stock has experienced, and may continue to experience, significant market price and volume fluctuations, which may prevent our stockholders from selling our common stock at a profit and could lead to costly litigation against us that could divert our management’s attention. These and the important factors discussed under the caption “Risk Factors” in Part II. Item 1A and Part 1. Item 1A of our Form 10-K for the fiscal year ended March 31, 2011, among others, could cause actual results to differ materially from those indicated by forward-looking statements made herein and presented elsewhere by management from time to time. Any such forward-looking statements represent management’s estimates as of the date of this Quarterly Report on Form 10-Q. While we may elect to update such forward-looking statements at some point in the future, we disclaim any obligation to do so, even if subsequent events cause our views to change. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this Quarterly Report on Form 10-Q.

AMSC, American Superconductor, Amperium, dSVC, DataPark, D-VAR, D-VAR-RT, FaultBlocker, Gridtec Solutions, PowerModule, PowerPipelines, PQ-IVR, SafetyLock, SeaTitan, SolarTie, SuperGEAR, Wind-RT, Windtec, Windtec Solutions, wtCMS, wtSCADA, wtWPC, and “smarter, cleaner … better energy,” are trademarks or registered trademarks of American Superconductor Corporation or its subsidiaries. All other brand names, product names, trademarks or service marks appearing in this Quarterly Report on Form 10-Q are the property of their respective holders.

Executive Overview

American Superconductor Corporation (“AMSC”) was founded on April 9, 1987. We are a leading provider of megawatt-scale solutions that lower the cost of wind power and enhance the performance of the power grid. In the wind power market, we enable manufacturers to field wind turbines through our advanced engineering, support services and power electronics products. In the power grid market, we enable electric utilities and renewable energy project developers to connect, transmit and distribute power through our transmission planning services and power electronics and superconductor based products. Our wind and power grid products and services provide exceptional reliability, security, efficiency and affordability to our customers.

Our wind and power grid solutions help to improve energy efficiency, alleviate power grid capacity constraints and increase the adoption of renewable energy generation. Demand for our solutions is driven by the growing needs for renewable sources of electricity, such as wind and solar energy, and for modernized smart grids that improve power reliability and quality. Concerns about these factors have led to increased spending by corporations as well as supportive government regulations and initiatives on local, state, national and global levels, including renewable portfolio standards, tax incentives and international treaties.

We manufacture products using two proprietary core technologies: PowerModule™ programmable power electronic converters and our Amperium™ HTS wires. These technologies and our system-level solutions are protected by a broad and deep intellectual property portfolio consisting of hundreds of patents and licenses worldwide.

We segment our business in two market-facing business units: Wind and Grid. We believe this market-centric structure enables us to more effectively anticipate and meet the needs of wind turbine manufacturers, power generation project developers and electric utilities.

• Wind. Through our Windtec Solutions, our Wind business segment enables manufacturers to field wind turbines with exceptional power output, reliability and affordability. We license our highly engineered wind turbine designs, provide extensive customer support services and supply advanced power electronics and control systems to wind turbine manufactures. Our design portfolio includes a broad range of drive trains and power ratings up to 10 megawatts. We believe our unique engineering capabilities, ranging from bearings to advanced synchronous generators to blades, enables us to provide our partners with highly-optimized wind turbine platforms. Furthermore, these designs and support services typically lead to sales of our power electronics and software-based control systems, which are designed for optimized performance, efficiency and grid compatibility.

• Grid. Through our Gridtec Solutions, our Grid business segment enables electric utilities and renewable energy project developers to connect, transmit and distribute power with exceptional efficiency, reliability and affordability. We provide transmission planning services that allow us to identify power grid congestion, poor power quality and other risks, which help us determine how our solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems and transmission and distribution cable systems.

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Our fiscal year begins on April 1 and ends on March 31. This document refers to fiscal 2011, which is defined as the period beginning on April 1, 2011 and concluding on March 31, 2012. The third quarter of fiscal 2011 began on October 1, 2011 and concluded on December 31, 2011.

Our cash requirements depend on numerous factors, including successful completion of our product development activities, ability to commercialize our product prototypes, rate of customer and market adoption of our products, collecting receivables according to established terms, and the continued availability of U.S. government funding during the product development phase. Significant deviations to our business plan with regard to these factors, which are important drivers to our business, could have a material adverse effect on our operating performance, financial condition, and future business prospects. We expect to pursue the expansion of our operations through internal growth and potential strategic alliances and acquisitions.

As of December 31, 2011 and March 31, 2011, we had backlog of approximately $299.6 million and $228.4 million, respectively, excluding Sinovel. On March 31, 2011, Sinovel refused to accept contracted shipments of 1.5MW and 3MW wind turbine core electrical components and spare parts that we were prepared to deliver. As a result, we have not made shipments to Sinovel since February 2011. Additionally, we are pursuing litigation against Sinovel for the theft of our intellectual property (as discussed below). Consequently, our reported backlog excludes purchase contracts with Sinovel.

During March 2011, we engaged in discussions with Sinovel regarding the acceptance of its scheduled shipments, outstanding receivables, and the delivery of a custom solution desired by Sinovel for low voltage ride through (“LVRT”) that required a modification to our existing LVRT design. The custom design required modified software and additional hardware. Toward the end of March, Sinovel requested that we provide them with the additional hardware without additional cost. On March 31, 2011, we proposed to Sinovel that we would provide the additional hardware without additional cost if Sinovel would accept the scheduled shipments. Sinovel rejected this proposal due to what we were told was excess inventory of our components. Since Sinovel did not give us the requisite notice under our contracts that they intended to delay acceptance of deliveries, we believe that these actions constitute material breaches of our contracts.

As of the date of this filing, we have not received payment for any outstanding receivables nor have we been notified as to when, if ever, Sinovel will accept contracted shipments that were scheduled for delivery after March 31, 2011. Additionally, based in part upon evidence obtained through an internal investigation and a criminal investigation conducted by Austrian authorities regarding the actions of a former employee of our AMSC Austria subsidiary, we believe that Sinovel illegally obtained and used our intellectual property in violation of civil and criminal intellectual property laws. In July 2011, the former employee was arrested in Austria and in September 2011, pled guilty to charges of economic espionage and fraudulent manipulation of data. The evidence presented during the court hearing showed that this former employee was contracted by Sinovel through an intermediary while employed by us and improperly obtained and transferred to Sinovel portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines. Except for portions of this 1.5MW wind turbine software, we do not believe that the source code for any other turbines, such as the 3MW, 5MW and 6MW wind turbines that were designed by and co-developed with us have been transferred to Sinovel. Moreover, we believe the evidence shows this former employee illegally used source code to develop for Sinovel a software modification to circumvent the encryption and remove technical protection measures on the PM3000 power converters in 1.5MW wind turbines in the field. We believe that only the binary code, or upper layer, of the PM3000 software developed to circumvent the encryption and remove technical protection measures was transferred to Sinovel. We do not believe that any PM3000 source code was transferred to Sinovel. These actions potentially enable Sinovel to deploy, independent of us, wind turbine control software, including a low voltage ride through solution, on all of its 1.5MW wind turbines in the field. In addition, by having the wind turbine control source code, Sinovel could potentially modify the source code to allow the use of core electrical components, including power converters, from other manufacturers.

On September 13, 2011, we commenced a series of legal actions in China against Sinovel. We filed a claim for arbitration in Beijing, China to compel Sinovel to pay us for past product shipments and to accept all contracted but not yet delivered core electrical components and spare parts under all existing contracts with us. The arbitration claim was filed with the Beijing Arbitration Commission in accordance with the terms of our supply contracts with Sinovel. We have also filed civil and criminal complaints against Sinovel.

We cannot provide any assurance as to the outcome of these legal actions. We are now operating our business under the assumption that Sinovel will not be a customer.

On September 16, 2011, we filed a civil complaint in China against Dalian Guotong Electric, Co., Ltd. and other parties. The complaints allege the illegal use of our intellectual property. We are seeking to compel Sinovel and the other parties to cease and desist from infringing our intellectual property and are also seeking monetary damages to compensate us for our

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economic losses resulting from the infringement. In December 2011, Sinovel filed a jurisdiction opposition motion requesting dismissal by the Hainan Province No. 1 Intermediate People’s Court, saying the case should be governed by the Beijing Arbitration Commission. On February 3, 2012, we received the Civil Ruling from the court, which granted Sinovel’s motion, and dismissed the entire case. We plan to appeal the court’s ruling.

Critical Accounting Policies and Estimates

The preparation of the unaudited condensed consolidated financial statements requires that we make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. We base our estimates on historical experience and various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ under different assumptions or conditions. There were no significant changes in the third quarter of fiscal 2011 in the critical accounting policies that were disclosed in our Form 10-K for fiscal 2010, which ended on March 31, 2011.

Results of Operations

Three and nine months ended December 31, 2011 compared to the three and nine months ended December 31, 2010

Beginning on April 1, 2011, management revised its reportable business segments into Wind and Grid as a result of changes in the manner in which we disaggregate the Company’s operations for making operating decisions and assessing performance of our business segments. Previously, we had two reportable business segments: AMSC Power Systems and AMSC Superconductors. All prior period segment disclosures have been revised to conform to management’s current view of its business segments.

As discussed above, the loss of Sinovel as a customer has materially and adversely affected our business and results of operations. Because Sinovel has accounted for more than two-thirds of our revenues over each of the past three fiscal years, we experienced significantly lower revenues and significant operating losses during the three and nine months ended December 31, 2011. Revenues to Sinovel represented 0% and 66% of total revenues for the three and nine months ended December 31, 2010, respectively. Since no cash payments were made by Sinovel in the three and nine months ended December 31, 2011, no revenue was recognized from Sinovel in the three and nine months ended December 31, 2011.

Revenues

Total revenues decreased by 43% and 79% to $18.1 million and $47.9 million for the three and nine months ended December 31, 2011, respectively, compared to $31.6 million and $226.9 million for the three and nine months ended December 31, 2010, respectively. Our revenues are summarized as follows (in thousands):

	Three months ended December 31,				Nine months ended December 31,
	2011		2010		2011		2010
Revenues:
Wind	$	10,125	$	10,840	$	27,836	$	183,162
Grid		7,933		20,730		20,080		43,691
Total	$	18,058	$	31,570	$	47,916	$	226,853

Our Wind business unit accounted for 56% and 58% of total revenues for the three and nine months ended December 31, 2011, respectively, compared to 34% and 81% for the three and nine months ended December 31, 2010, respectively. Revenues in the Wind business unit decreased 7% and 85% to $10.1 million and $27.8 million in the three and nine months ended December 31, 2011, respectively, from $10.8 million and $183.2 million in the three and nine months ended December 31, 2010, respectively. The decrease in Wind business unit revenues for the three months ended December 31, 2011 was primarily due to lower Wind product sales in China. The decrease in Wind revenues for the nine months ended December 31, 2011 was primarily due to the loss of Sinovel as a customer, as described above.

Our Grid business unit accounted for 44% and 42% of total revenues for the three and nine months ended December 31, 2011, respectively, compared to 66% and 19% for the three and nine months ended December 31, 2010, respectively. Revenues in the Grid business unit decreased 62% and 54% to $7.9 million and $20.1 million in the three and nine months ended December 31, 2011, respectively, from $20.7 million and $43.7 million in the three and nine months ended December 31, 2010, respectively. The decrease in Grid business unit revenues for the three and nine months ended December 31, 2011 was due primarily to a large D-VAR sale in the three months ended December 31, 2010 and lower HTS product sales.

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The following table sets forth customers who represented 10% or more of the Company’s total revenues:

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Inox Wind, Ltd.		27	%		< 10	%		21	%		< 10	%
Doosan Heavy Industries & Construction Co Ltd.		12	%		< 10	%		15	%		< 10	%
Ergon Energy Corporation Limited		11	%		—			< 10	%		—
Vestas – Australian Wind Technology Ltd		< 10	%		44	%		< 10	%		< 10	%
Hyundai Heavy Industries Co., Ltd.		< 10	%		10	%		< 10	%		< 10	%
Shenyang Blower Works Group Co., Ltd.		< 10	%		11	%		< 10	%		< 10	%
Sinovel Wind Co., Ltd		—			—			—			66	%

Revenues from significant government-funded contracts are summarized as follows (in thousands):

Project name	Expected total contract value		Revenue earned through December 31, 2011		Three months ended December 31,				Nine months ended December 31,
					2011		2010		2011		2010
HYDRA	$	29,043	$	11,760	$	511	$	112	$	1,208	$	621
LIPA I and II		40,141		39,900		116		861		1,500		3,009
DOE-FCL		7,898		6,962		95		571		409		1,558
NAVSEA Motor Study		6,511		6,492		—		103		—		252
Total	$	83,593	$	65,114	$	722	$	1,647	$	3,117	$	5,440

These projects represented 9% and 16% of the Grid business unit revenues for the three and nine months ended December 31, 2011, respectively, compared to 8% and 12% for the three and nine months ended December 31, 2010, respectively.

Project HYDRA is a contract with Consolidated Edison, Inc. which is being partially funded by the U.S. Department of Homeland Security (“DHS”). DHS is expected to invest up to a total of $29.0 million in the development of a new high temperature superconductor power grid technology called FaultBlocker™ cable systems. FaultBlocker cable systems are designed to utilize customized Amperium™ HTS wires, and ancillary controls to deliver more power through the grid while also being able to suppress power surges that can disrupt service. On September 15, 2011, DHS committed an additional $4.1 million in funding on Project HYDRA. Of the total $29.0 million in funding expected from DHS, it has committed funding of $15.6 million to us as of December 31, 2011. Consolidated Edison and Southwire Company are subcontractors to us on this project.

LIPA II is a project to install an HTS power cable utilizing our Amperium™ wire for the Long Island Power Authority. DOE-FCL is a project to develop and demonstrate a transmission voltage SuperLimiter fault current limiter (“FCL”). The NAVSEA Motor Study is a project designed to test the 36.5 MW superconductor motor developed for the U.S. Navy.

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Cost of Revenues and Gross Margin

Cost of revenues decreased by 40% and 61% to $18.9 million and $57.8 million for the three and nine months ended December 31, 2011, compared to $31.5 million and $149.2 million for the three and nine months ended December 31, 2010. Gross margin was (5%) and (21%) for the three and nine months ended December 31, 2011, respectively, compared to 0% and 34% for the three and nine months ended December 31, 2010, respectively. The decrease in gross margin in the three months ended December 31, 2011 compared to the same period in fiscal 2010 was due primarily to lower sales volume resulting in unabsorbed fixed costs. The decrease in gross margin for the nine months ended December 31, 2011 as compared to the same period in fiscal 2010 was primarily a result of lower sales due to the loss of Sinovel as a customer and unabsorbed fixed overhead due to idle capacity. This is expected to improve in the future quarters as the wind market in China recovers.

Operating Expenses

Research and development

A portion of our R&D expenditures related to externally funded development contracts has been classified as cost of revenues (rather than as R&D expenses). Additionally, a portion of R&D expenses was offset by cost-sharing funding. Our R&D expenditures are summarized as follows (in thousands):

	Three months ended December 31,				Nine months ended December 31,
	2011		2010		2011		2010
R&D expenses per condensed consolidated statements of operations	$	5,928	$	8,417	$	21,339	$	23,610
R&D expenditures reclassified as cost of revenues		2,480		3,862		9,782		11,582
R&D expenditures offset by cost-sharing funding		42		128		123		402
Aggregated R&D expenses	$	8,450	$	12,407	$	31,244	$	35,594

R&D expenses (exclusive of amounts classified as cost of revenues and amounts offset by cost-sharing funding) decreased by 30% and 10% to $5.9 million and $21.3 million for the three and nine months ended December 31, 2011, respectively, from $8.4 million and $23.6 million for the three and nine months ended December 31, 2010, respectively. Lower R&D expenditures for the three and nine months ended December 31, 2011 were primarily due to the impact of our cost reduction activities. The decrease in R&D expenditures reclassified to costs of revenue was a result of decreased efforts under license and development contracts for wind turbine designs compared to the prior year. Aggregated R&D expenses, which include amounts classified as cost of revenues and amounts offset by cost-sharing funding, decreased 32% and 12% to $8.5 million and $31.2 million, or 47% and 65% of revenues for the three and nine months ended December 31, 2011, respectively, compared to $12.4 million and $35.6 million, or 39% and 16% of revenues, for the three and nine months ended December 31, 2010, respectively. R&D expenses are expected to decline year over year for the next several quarters as a result of the restructuring actions undertaken in fiscal 2011.

We present aggregated R&D, which is a non-GAAP measure, because we believe this presentation provides useful information on our aggregate R&D spending and because R&D expenses as reported on the unaudited condensed consolidated statements of income have been, and may in the future, be subject to significant fluctuations solely as a result of changes in the level of externally funded contract development work, resulting in significant changes in the amount of the costs recorded as costs of revenues rather than as R&D expenses, as discussed above.

Selling, general, and administrative

SG&A expenses increased by 9% and 18% to $15.4 million and $55.0 million, or 85% and 115% of revenues, for the three and nine months ended December 31, 2011, respectively, from $14.2 million and $46.7 million, or 45% and 21% of revenues, for each of the three and nine months ended December 31, 2010, respectively.

The increases in SG&A expenses were due primarily to increases in legal fees associated with ongoing litigation as discussed in Part II, Item 1, “Legal Proceedings,” of this Quarterly Report on Form 10-Q. During the three and nine months ended December 31, 2011, we incurred $2.4 million and $5.8 million, respectively, in legal fees related to Sinovel litigation. Going forward, we expect litigation expenses for Sinovel to be reduced as compared to the amount incurred in the third quarter.

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Write-off of advance payment

In October 2011, we terminated our previously planned acquisition of The Switch due to adverse market conditions for a financing required to fund the acquisition. As a result, The Switch retained a $20.6 million advance payment as a break-up fee, and we recorded a write-off of the advance payment during the nine months ended December 31, 2011.

Amortization of acquisition related intangibles

We recorded amortization expense related to our core technology and know-how, trade names and trademark intangible assets of $0.3 million and $0.9 million in the three and nine months ended December 31, 2011, respectively, compared to $0.4 million and $1.2 million in the three and nine months ended December 31, 2010. These intangible assets are primarily a result of our AMSC Windtec acquisition.

Restructuring and impairments

We recorded restructuring and impairment charges of $4.1 million and $8.4 million in the three and nine months ended December 31, 2011, respectively. These amounts consist primarily of a long-lived asset impairment of $1.7 million recorded in the three months ended December 31, 2011. In addition, for the three and nine months ended December 31, 2011, these amounts include employee severance and benefit costs related to the restructuring plan of $2.2 million and $5.4 million, respectively, and impairment charges on long-lived assets for which there is no remaining future economic benefit as of December 31, 2011 of $0.1 million and $1.1 million, respectively. Finally, for the nine months ended December 31, 2011, the Company recorded facility exit costs of $0.1 million associated with portions of the leased space in Klagenfurt, Austria

Operating (loss) income

Our operating (loss) income is summarized as follows (in thousands):

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Operating (loss) income:
Wind	($	14,014	)	($	12,494	)	($	54,719	)	$	51,499
Grid		(6,313	)		(8,189	)		(24,511	)		(35,166	)
Unallocated corporate expenses		(6,242	)		(2,277	)		(36,790	)		(10,135	)
Total	($	26,569	)	($	22,960	)	($	116,020	)	$	6,198

Operating loss for the Wind business unit increased to $14.0 million in the three months ended December 31, 2011 compared to $12.5 million in the three months ended December 31, 2010. Operating (loss) income for the Wind business unit decreased to an operating loss of $54.7 million in the nine months ended December 31, 2011, compared to operating income of $51.5 million in the nine months ended December 31, 2010. For the three months ended December 31, 2011 the increase in operating loss was primarily due to a lower revenues and legal expenses associated with the Sinovel litigation. For the nine months ended December 31, 2011, the decrease in Wind business unit operating income was primarily due to the loss of Sinovel as a customer, as described above.

Operating loss for the Grid business unit decreased to $6.3 million in the three months ended December 31, 2011, from $8.2 million in the three months ended December 31, 2010. Operating loss for the Grid business unit decreased to $24.5 million in the nine months ended December 31, 2011 from $35.2 million in the nine months ended December 31, 2010. The decreases in Grid business unit operating loss were primarily due to lower operating expenses as a result of the reductions in force, reduced discretionary spending and changes to corporate allocations, partially offset by reduced D-VAR revenues.

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For the three and nine months ended December 31, 2011, unallocated corporate expenses primarily consist of restructuring and impairment charges of $4.1 million and $8.4 million, respectively, and stock-based compensation expense of $2.1 million and $7.7 million, respectively. In addition, the nine months ended December 31, 2011 includes expense of $20.6 million for the write-off of an advance payment to The Switch. Unallocated corporate expenses for the three and nine months ended December 31, 2010, primarily consist of stock-based compensation expense of $2.2 million and $10.1 million respectively.

Interest (expense) income, net

Interest (expense) income, net, was an expense of less than $0.1 million and income of $0.2 million in the three and nine months ended December 31, 2011, respectively, compared to income of $0.2 million and $0.5 million in the three and nine months ended December 31, 2010, respectively. The decreases are due primarily to lower interest-bearing cash balances.

Other income, net

Other income, net, was $0.4 million and $1.3 million in the three and nine months ended December 31, 2011, respectively, compared to $2.1 million and $4.7 million for the three and nine months ended December 31, 2010. The decrease in other income, net, for the three months ended December 31, 2011, primarily relates to a decrease in foreign currency gains of $1.9 million. For the nine months ended December 31, 2011, the decrease in other income, net primarily relates to a decrease in foreign currency gains of $2.8 million and an increase in losses on minority interest investments of $0.3 million.

Income Taxes

In the three and nine months ended December 31, 2011, we recorded income tax expense of less than $0.1 million and $1.2 million, respectively, compared to an income tax benefit of $2.5 million and an income tax expense of $12.6 million in the three and nine months ended December 31, 2010. Income tax expense decreased primarily due to the pretax losses in the three and nine months ended December 31, 2011 with a full valuation allowance applied to these deferred tax assets. We have provided a valuation allowance against all deferred tax assets as of December 31, 2011, as it is more likely than not that our deferred tax assets are not currently realizable due to the net operating losses incurred since our inception in the U.S. and the significant write-offs in certain foreign jurisdictions in the fiscal year ended March 31, 2011 and the losses forecasted in certain foreign jurisdictions in the future.

Non-GAAP Measures

Generally, a non-GAAP financial measure is a numerical measure of a company’s performance, financial position or cash flow that either excludes or includes amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with GAAP. The non-GAAP measures included in this Form 10-Q, however, should be considered in addition to, and not as a substitute for or superior to the comparable measure prepared in accordance with GAAP.

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We define non-GAAP net (loss) income as net (loss) income before amortization of acquisition-related intangibles, restructuring and impairments, stock-based compensation, other unusual charges and any tax effects related to these items. We believe non-GAAP net (loss) income assists management and investors in comparing our performance across reporting periods on a consistent basis by excluding these non-cash or non-recurring charges that we do not believe are indicative of our core operating performance. We also regard non-GAAP net (loss) income as a useful measure of operating performance which more closely aligns net (loss) income with cash used in/provided by continuing operations. In addition, we use non-GAAP net (loss) income as a factor in evaluating management’s performance when determining incentive compensation and to evaluate the effectiveness of our business strategies. A reconciliation of non-GAAP to GAAP net (loss) income is set forth in the table below (in thousands, except per share data):

	Three months ended December 31,						Nine months ended December 31,
	2011			2010			2011			2010
Net loss	$	(26,271	)	$	(18,158	)	$	(115,660	)	$	(1,150	)
Write-off of advance payment		—			—			20,551			—
Stock-based compensation		2,118			2,249			7,697			10,073
Restructuring and impairment charges		4,092			—			8,393			—
Executive severance		—			—			2,066			—
Sinovel litigation		2,423			—			5,757			—
Provision for excess and obsolete inventory		—			2,087			—			2,667
Adverse purchase commitment (recoveries) losses, net		(94	)		—			73			—
Margin on zero cost-basis inventory		(46	)		—			(173	)		—
Value-added tax write-off		—			118			—			550
Amortization of acquisition-related intangibles		287			392			891			1,154
Tax effects		—			(88	)		—			(255	)
Non-GAAP net (loss) income	$	(17,491	)	$	(13,400	)	$	(70,405	)	$	13,039
Non-GAAP (loss) earnings per share	$	(0.34	)	$	(0.28	)	$	(1.39	)	$	0.28
Weighted average shares outstanding *		50,933			48,068			50,789			46,017

* Diluted shares are used for periods where net income is generated.

We incurred non-GAAP net losses of $17.5 million and $70.4 million, or ($0.34) and ($1.39) per share, for the three months and nine months ended December 31, 2011, compared to non-GAAP net loss of $13.4 million, or ($0.28) per share and non-GAAP net income of $13.0 million, or $0.28 per diluted share, for the three and nine months ended December 31, 2010. The higher non-GAAP net losses were driven primarily by an increase in net loss as described above and decreases in stock-based compensation and provisions for excess and obsolete inventory related to certain customers in China, partially offset by add backs for the write-off of the advance payment to The Switch, Sinovel litigation expenses and restructuring and impairment charges.

Liquidity and Capital Resources

At December 31, 2011, we had cash, cash equivalents, marketable securities and restricted cash of $75.5 million, compared to $245.5 million at March 31, 2011, a decrease of $170.0 million. Our cash and cash equivalents, marketable securities and restricted cash are summarized as follows (in thousands):

	December 31, 2011		March 31, 2011
Cash and cash equivalents	$	58,605	$	123,783
Marketable securities		5,261		116,126
Restricted cash		11,589		5,566
Total cash, cash equivalents, marketable securities and restricted cash	$	75,455	$	245,475

For the nine months ended December 31, 2011, net cash used in operating activities was $133.3 million compared to $16.0 million in the nine months ended December 31, 2010. The increase in net cash used in operations is due primarily to an increase in net loss of $114.5 million and an increase in cash used for working capital of $32.2 million, partially offset by the write-off of the advance payment to The Switch of $20.6 million, net restructuring charges of $2.7 million, impairment charges of $2.8 million and deferred income taxes of $3.9 million.

For the nine months ended December 31, 2011, net cash provided by investing activities was $68.3 million compared to net cash used in investing activities of $64.8 million in the nine months ended December 31, 2010. The increase in net cash provided by investing activities for the nine months ended December 31, 2011 was driven primarily by an increase in net maturities and sales of marketable securities of $135.0 million, a decrease in capital expenditures of $21.4 million and decrease in purchased minority investments of $6.2 million, partially offset by the $20.6 million advance payment to The Switch and an increase in restricted cash of $6.3 million.

For the nine months ended December 31, 2011, net cash used in financing activities was $0.1 million compared to cash provided by financing activities of $162.6 million in the nine months ended December 31, 2010. The decrease in net cash provided by financing activities is primarily due to a decrease in proceeds from public offering of $155.2 million, a decrease from exercise of employee stock options and ESPP of $7.2 million and payments in lieu of issuance of common stock for payroll taxes of $0.3 million.

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As of December 31, 2011, we had two performance bonds in support of customer contracts. The total value of the outstanding performance bonds is $0.4 million with expiration dates through October 2012. In the event that the payment is made in accordance with the requirements of any of these performance bonds, we would record the payment as an offset to revenue.

At December 31, 2011, the Company had $9.0 million of restricted cash included in current assets and $2.5 million of restricted cash included in long-term assets. These amounts included in restricted cash represent deposits to secure letters of credit for various supply contracts. These deposits are held in interest bearing accounts

We had unused, unsecured lines of credit consisting of €2.3 million (approximately $3.0 million) in Austria as of December 31, 2011. During the nine months ended December 31, 2011, our unsecured credit line with the Bank of China expired and we repaid borrowings on lines of credit of $4.6 million. There were no borrowings outstanding as of December 31, 2011.

Our business plan anticipates a substantial use of cash from operations in our fiscal year ending March 31, 2012 in light of the difficult and uncertain current economic environment in China, the significant restructuring actions undertaken and the slowdown in the Chinese wind power market, which has accounted for more than two-thirds of our revenues in recent fiscal years. At December 31, 2011, we had accrued liabilities related to adverse purchase commitments for inventory totaling $28.8 million. From April 1, 2011 through the date of this filing, we have reduced our global workforce by approximately 50%, which is expected to result in annual savings of approximately $50 million. As of December 31, 2011, we have a global workforce of over 400 persons. Our cost reduction efforts and anticipated revenue growth are expected to result in a substantial reduction in cash used for operations during the fiscal year ended March 31, 2013. We plan to continue to closely monitor our expenses and if required, will further reduce operating costs and capital spending to enhance liquidity. We are working with our inventory suppliers to delay cash settlements and, reduce the gross liability associated with our adverse purchase commitments. We believe that our available cash, together with additional reductions in operating costs and capital expenditures as necessary, will be sufficient to fund our operations, capital expenditures and other cash requirements for the next twelve months. To bolster our long-term liquidity, we intend to seek financing through means that may include public and private equity offerings, debt financings, and other financing alternatives. However, there can be no assurance that financing will be available on commercially acceptable terms or at all. Our liquidity is highly dependent on our ability to profitably grow revenues, successfully manage our adverse purchase order commitments and raise additional capital as required.

Between April 6, 2011 and May 12, 2011, seven putative securities class action complaints were filed against us and two of our officers in the United States District Court for the District of Massachusetts; one complaint additionally asserted claims against the underwriters who participated in our November 12, 2010 securities offering. On June 7, 2011, the United States District Court for the District of Massachusetts consolidated these actions under the caption Lenartz v. American Superconductor Corporation, et al., Docket No. 1:11-cv-10582-WGY. On August 31, 2011, Lead Plaintiff, the Plumbers and Pipefitters National Pension Fund, filed a consolidated amended complaint against us, our officers and directors, and the underwriters who participated in our November 12, 2010 securities offering, asserting claims under sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated under the Securities Exchange Act of 1934, as well as under sections 11, 12(a)(2) and 15 of the Securities Act of 1933. The complaint alleges that during the relevant class period, we and our officers omitted to state material facts and made materially false and misleading statements relating to, among other things, our projected and recognized revenues and earnings, as well as our relationship with Sinovel Wind Group Co., Ltd. that artificially inflated the value of our stock price. The complaint further alleges that our November 12, 2010 securities offering contained untrue statements of material facts and omitted to state material facts required to be stated therein. The plaintiffs seek unspecified damages, rescindment of our November 12, 2010 securities offering, and an award of costs and expenses, including attorney’s fees.

Between May 4, 2011 and June 17, 2011, four putative shareholder derivative complaints were filed against us (as a nominal defendant) and certain of our directors in the United States District Court for the District of Massachusetts. On July 5, 2011, the District Court consolidated three of these actions, and that matter is now captioned In re American Superconductor Corporation Derivative Litigation, Docket No. 1:11-cv-10784-WGY. On June 1, 2011, the plaintiff in the fourth action, Marlborough Family Revocable Trust v. Yurek, et al., moved to voluntarily dismiss its complaint and refiled its complaint in Superior Court for the Commonwealth of Massachusetts, Middlesex County. On September 7, 2011, the Marlborough action and another putative shareholder derivative complaint filed in Superior Court for the Commonwealth of Massachusetts were consolidated. That consolidated matter is captioned Marlborough Family Revocable Trust v. Yurek, et al., Docket No. 11-1961. On January 12, 2012, an additional shareholder derivative complaint was filed in the Court of Chancery for the State of Delaware. That matter is captioned Krasnoff v. Budhraja, et al., Docket No. 7171. The allegations of the derivative

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complaints mirror the allegations made in the putative class action complaints described above. The plaintiffs purport to assert claims against the director defendants for breach of fiduciary duty, abuse of control, gross mismanagement and corporate waste. The plaintiffs seek unspecified damages on behalf of us, as well as an award of costs and expenses, including attorney’s fees.

If a matter is both probable to result in liability and the amounts of loss can be reasonably estimated, we estimate and disclose the possible loss or range of loss. With respect to the above referenced litigation matters, such an estimate cannot be made. There are numerous factors that make it difficult to meaningfully estimate possible loss or range of loss at this stage of these litigation matters, including that: the proceedings are in relatively early stages, there are significant factual and legal issues to be resolved, information obtained or rulings made during the lawsuits could affect the methodology for calculation of rescission and the related statutory interest rate. In addition, with respect to claims where damages are the requested relief, no amount of loss or damages has been specified. Therefore, we are unable at this time to estimate possible losses. We believe that these litigations are without merit, and we intend to defend these actions vigorously.

On September 13, 2011, we commenced a series of legal actions in China against Sinovel Wind Group Co. Ltd. (“Sinovel”). Our Chinese subsidiary, Suzhou AMSC Superconductor Co. Ltd., filed a claim for arbitration with the Beijing Arbitration Commission in accordance with the terms of our supply contracts with Sinovel. The case is captioned (2011) Jin Zhong An Zi No. 0693. On March 31, 2011, Sinovel refused to accept contracted shipments of 1.5 megawatt (MW) and 3 MW wind turbine core electrical components and spare parts that we were prepared to deliver. We allege that these actions constitute material breaches of our contracts because Sinovel did not give us notice that it intended to delay deliveries as required under the contracts. Moreover, we allege that Sinovel has refused to pay past due amounts for prior shipments of core electrical components and spare parts. We are seeking compensation for past product shipments (including interest) and monetary damages in the amount of approximately RMB 430 million ($67 million) due to Sinovel’s breaches of our contracts. We are also seeking specific performance of our existing contracts as well as reimbursement of all costs and reasonable expenses with respect to the arbitration. The value of the undelivered components under the existing contracts, including the deliveries refused by Sinovel in March 2011, amounts to approximately RMB 4.6 billion ($720 million).

On October 8, 2011, Sinovel filed with the Beijing Arbitration Commission an application under the caption (2011) Jing Zhong An Zi No. 0693, for a counterclaim against the Company for breach of the same contracts under which the Company filed its original arbitration claim. Sinovel claimed, among other things, that the goods supplied by the Company do not conform to the standards specified in the contracts and claimed damages in the amount of approximately RMB 370 million ($58 million). On October 17, 2011, Sinovel filed with the Beijing Arbitration Commission a request for change of counterclaim to increase its damage claim to approximately RMB 1 billion ($157 million). On December 22, 2011, Sinovel filed with the Beijing Arbitration Commission an additional request for change of counterclaim to increase its damages claim to approximately RMB 1.2 billion ($190 million). Deducting the RMB 430 million ($67 million) of past product shipments claimed by the Company, the net amount of damages claimed by Sinovel is approximately RMB 770 million ($120 million). We believe that Sinovel’s claims are without merit and we intend to defend these actions vigorously. Since the proceedings in this matter are in relatively early stages, we cannot reasonably estimate possible losses or range of losses at this time.

We also submitted a civil action application to the Beijing No. 1 Intermediate People’s Court under the caption (2011) Yi Zhong Min Chu Zi No. 15524, against Sinovel for software copyright infringement on September 13, 2011. The application alleges Sinovel’s unauthorized use of portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines and the binary code, or upper layer, of our software for the PM3000 power converters in 1.5MW wind turbines. In July 2011, a former employee of our AMSC Windtec GmbH subsidiary was arrested in Austria on charges of economic espionage and fraudulent manipulation of data. In September 2011, the former employee pled guilty to the charges, and he is currently serving a prison sentence. As a result of our internal investigation and a criminal investigation conducted by Austrian authorities, we believe that this former employee was contracted by Sinovel through an intermediary while employed by us and improperly obtained and transferred to Sinovel portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines. Moreover, we believe the former employee illegally used source code to develop for Sinovel a software modification to circumvent the encryption and remove technical protection measures on the PM3000 power converters in 1.5MW wind turbines in the field. We are seeking a cease and desist order with respect to the unauthorized copying, installation and use of our software, monetary damages of approximately RMB 38 million ($6 million) for our economic losses and reimbursement of all costs and reasonable expenses. The No. 1 Intermediate People’s Court accepted the case, which was necessary in order for the case to proceed. In November 2011, Sinovel filed a motion to remove this case from the Beijing No. 1 Intermediate People’s Court and transfer the matter to the Beijing Arbitration Commission. We are awaiting the court’s decision.

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We submitted a civil action application to the Beijing Higher People’s Court against Sinovel and certain of its employees for trade secret infringement on September 13 2011 under the caption (2011) Gao Min Chu Zi No. 4193. The application alleges the defendants’ unauthorized use of portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines as described above with respect to the Copyright Action. We are seeking monetary damages of RMB 2.9 billion ($453 million) for the trade secret infringement as well as reimbursement of all costs and reasonable expenses. The Beijing Higher People’s Court accepted the case, which was necessary in order for the case to proceed. On December 22, 2011 the Beijing Higher People’s Court transferred this case to the Beijing No. 1 Intermediate People’s Court under the caption (2011) Gao Min Chu Zi No. 4193. We are currently awaiting notice from the Beijing No. 1 Intermediate People’s Court regarding the evidence submission deadline and the first hearing date.

On September 16, 2011, we filed a civil copyright infringement complaint in the Hainan Province No. 1 Intermediate People’s Court against Dalian Guotong Electric Co. Ltd. (“Guotong”), a supplier of power converter products to Sinovel, and Huaneng Hainan Power, Inc. (“Huaneng”), a wind farm operator that has purchased Sinovel wind turbines containing Guotong power converter products. The case is captioned (2011) Hainan Yi Zhong Min Chu Zi No. 62. The application alleges that our PM1000 converters in certain Sinovel wind turbines have been replaced by converters produced by Guotong. Because the Guotong converters are being used in wind turbines containing our wind turbine control software, we believe that our copyrighted software is being infringed. We are seeking a cease and desist order with respect to the unauthorized use of our software, monetary damages of RMB 1.2 million ($0.2 million) for our economic losses (with respect to Guotong only) and reimbursement of all costs and reasonable expenses. The court has accepted the case, which was necessary in order for the case to proceed. In addition, upon the request of the defendant Huaneng, Sinovel has been added by the court to this case as a defendant and Huaneng has been released from this case. In December 2011, Sinovel filed a jurisdiction opposition motion requesting dismissal by the Hainan Province No. 1 Intermediate People’s Court, saying the case should be governed by the Beijing Arbitration Commission. On February 3, 2012, we received the Civil Ruling from the court, which granted Sinovel’s motion, and dismissed the entire case. We plan to appeal the court’s ruling.

Ghodawat Energy Pvt Ltd (“Ghodawat”), a company registered in India carrying on the business of wind power development, lodged a Request for Arbitration with the Secretariat of the ICC International Court of Arbitration on May 12, 2011 and named AMSC Windtec GmbH (“AMSC Windtec”) as the Respondent. Under the Request for Arbitration, Ghodawat alleges that AMSC Windtec breached an agreement dated March 19, 2008 pursuant to which AMSC Windtec granted a license to Ghodawat to manufacture, use, sell, market, erect, commission and maintain certain wind turbines using its technical information and wind turbine design (the “License Agreement”). Under the Request for Arbitration, Ghodawat’s claims in this arbitration amount to approximately €18 million ($24 million). AMSC Windtec filed an Answer to Request for Arbitration and Counterclaim (“Answer and Counterclaim”), in which AMSC Windtec denied Ghodawat’s claims in their entirety. AMSC Windtec has also submitted counterclaims under the License Agreement against Ghodawat in the amount of approximately €6 million ($9 million). Ghodawat has filed a Reply to Answer to Request for Arbitration and Counterclaim in which it denies AMSC Windtec’s counterclaims. The arbitration proceedings are currently ongoing. We have recorded a loss contingency based on our assessment of probable losses on this claim, however this amount is immaterial to our consolidated financial statements.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements, as defined under SEC rules, such as relationships with unconsolidated entities or financial partnerships, which are often referred to as structured finance or special purpose entities, established for the purpose of facilitating transactions that are not required to be reflected on our balance sheet except as discussed below.

We occasionally enter into construction contracts that include a performance bond. As these contracts progress, we continually assess the probability of a payout from the performance bond. Should we determine that such a payout is probable, we would record a liability.

In addition, the Company has various contractual arrangements in which minimum quantities of goods or services have been committed to be purchased on an annual basis.

Recent Accounting Pronouncements

In December 2010, the FASB issued Accounting Standards Update (ASU) No. 2010-29, Business Combinations (Topic 805), Disclosure of Supplementary Pro forma Information for Business Combinations a consensus of the FASB Emerging Issues Task Force (ASC 2010-29). This amendment clarifies the periods for which pro forma financial information is

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presented. The disclosures include pro forma revenue and earnings of the combined entity for the current reporting period as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. If comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the comparable prior reporting period should be reported as though the acquisition date for all business combinations that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. ASU 2010-29 is effective prospectively for business combinations that occur on or after the beginning of the first annual reporting period beginning after December 15, 2010. The adoption of ASU 2010-29 did not have a material impact on our consolidated results of operations, financial condition, or cash flows.

In June 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. ASU 2011-05 requires entities to present net income and other comprehensive income in either a single continuous statement or in two separate, but consecutive, statements of net income and other comprehensive income. ASU 2011-05 is effective for fiscal years and interim periods beginning after December 15, 2011. We do not expect the adoption of ASU 2011-05 to have a material impact on our consolidated results of operations, financial condition, or cash flows.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We face exposure to financial market risks, including adverse movements in foreign currency exchange rates and changes in interest rates. These exposures may change over time as our business practices evolve and could have a material adverse impact on our financial results.

Primary market risk

Our exposure to market risk through financial instruments, such as investments in marketable securities, is limited to interest rate risk and is not material. Our investments in marketable securities consist primarily of government-backed securities and commercial paper and are designed, in order of priority, to preserve principal, provide liquidity, and maximize income. Investments are monitored to limit exposure to mortgage-backed securities and similar instruments responsible for the recent turmoil in the credit markets. Interest rates are variable and fluctuate with current market conditions. We do not believe that a 10% change in interest rates would have a material impact on our financial position or results of operations.

Foreign currency exchange risk

The functional currency of each of our foreign subsidiaries is the U.S. dollar, except for our Austrian subsidiary, for which the local currency (Euro) is the functional currency, and our Chinese subsidiary, for which the local currency (Renminbi) is the functional currency. The assets and liabilities of these foreign subsidiaries are translated into U.S. dollars at the exchange rate in effect at the balance sheet date and income and expense items are translated at average rates for the period. Cumulative translation adjustments are excluded from net income (loss) and shown as a separate component of stockholders’ equity.

We face exposure to movements in foreign currency exchange rates whenever we, or any of our subsidiaries, enter into transactions with third parties that are denominated in currencies other than our functional currency. Intercompany transactions between entities that use different functional currencies also expose us to foreign currency risk. Gross margins of products we manufacture in the U.S and sell in currencies other than the U.S. dollar are also affected by foreign currency exchange rate movements. In addition, a portion of our earnings is generated by our foreign subsidiaries, whose functional currencies are other than the U.S. dollar, and our revenues and earnings could be materially impacted by movements in foreign currency exchange rates upon the translation of the earnings of such subsidiaries into the U.S. dollar.

Foreign currency gains included in net loss were $0.7 million and $2.9 million for the three and nine months ended December 31, 2011, respectively. Foreign currency gains included in net loss were $2.6 million and $5.7 million for the three and nine months ended December 31, 2010, respectively.

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ITEM 4. CONTROLS AND PROCEDURES

Overview

Our management previously identified material weaknesses in internal control over financial reporting related to revenues and accounts receivable balances as fees were not fixed or determinable or collectability was not reasonably assured at the time revenue was recognized, which is described in our Annual Report on Form 10-K for the year ended March 31, 2011. During fiscal 2011, management has been focused on remediating these material weaknesses. The remediation process is ongoing but it is not yet complete. There was no change in internal control over financial reporting during the quarter ended December 31, 2011 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. The following discussion sets forth a summary of management’s evaluation of our disclosure controls and procedures as of December 31, 2011.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2011. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were not effective as of December 31, 2011 because of the previously identified material weaknesses in internal control over financial reporting discussed below.

Notwithstanding the material weaknesses described below, management believes that the unaudited condensed consolidated financial statements included in this Quarterly Report on Form 10-Q fairly present, in all material respects, our financial condition, results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the United States (“GAAP”).

This section of Item 4, “Controls and Procedures,” should be read in conjunction with Item 9A. “Controls and Procedures,” included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2011.

Material Weaknesses

As of December 31, 2011, the unremediated material weaknesses were as follows:

• we did not maintain adequately designed controls to ensure accurate recognition of revenue in accordance with GAAP. Specifically, controls were not effective to ensure that deviations from contractually established payment terms were identified, communicated and authorized;

• we did not maintain adequate controls to ensure proper monitoring and evaluation of customer creditworthiness, including the collectability of amounts due from customers and appropriate revenue recognition;

• we did not maintain a sufficient complement of personnel involved with business in our foreign locations with the appropriate level of knowledge, experience and training in the application of GAAP to ensure revenue transactions were appropriately reflected in the financial statements based on the terms and conditions of the sales contracts; and

• we did not establish and maintain, procedures to ensure proper oversight and review, by senior management, of customer relationships to ensure appropriate communication of relevant considerations to determine accounting judgments with respect to revenue recognition.

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Remediation of Material Weaknesses

As of the date of this filing, the status of our remediation efforts with regards to the above material weaknesses is as follows:

• we have established formal, written policies and procedures governing the customer credit process;

• we have implemented improved procedures to ensure the proper review and documentation of customer creditworthiness;

• we have established a new worldwide revenue manager position in finance with GAAP experience to ensure accuracy of revenue recognition;

• we have implemented improved procedures to ensure the proper communication, approval and accounting review of deviations from sales contracts;

• we have provided training to product managers and others involved in negotiating contractual arrangements and accounting for revenue transactions, and plan to provide additional guidance in order to heighten awareness of revenue recognition concepts under GAAP; and

• we have implemented an improved internal communication process for senior management. During monthly operations reviews time is devoted to senior management review of pending operational and accounting issues for the current quarter.

Management is committed to a strong internal control environment and believes that, when fully implemented and tested, the measures described above will improve our internal control over financial reporting. We will continue to assess the effectiveness of our remediation efforts in connection with our future assessments of the effectiveness of internal control over financial reporting.

Changes in Internal Control over Financial Reporting

Except as discussed above, there were no changes in our internal control over financial reporting during the quarter ended December 31, 2011 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Between April 6, 2011 and May 12, 2011, seven putative securities class action complaints were filed against us and two of our officers in the United States District Court for the District of Massachusetts; one complaint additionally asserted claims against the underwriters who participated in our November 12, 2010 securities offering. On June 7, 2011, the United States District Court for the District of Massachusetts consolidated these actions under the caption Lenartz v. American Superconductor Corporation, et al., Docket No. 1:11-cv-10582-WGY. On August 31, 2011, Lead Plaintiff, the Plumbers and Pipefitters National Pension Fund, filed a consolidated amended complaint against us, our officers and directors, and the underwriters who participated in our November 12, 2010 securities offering, asserting claims under sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated under the Securities Exchange Act of 1934, as well as under sections 11, 12(a)(2) and 15 of the Securities Act of 1933. The complaint alleges that during the relevant class period, we and our officers omitted to state material facts and made materially false and misleading statements relating to, among other things, our projected and recognized revenues and earnings, as well as our relationship with Sinovel Wind Group Co., Ltd. that artificially inflated the value of our stock price. The complaint further alleges that our November 12, 2010 securities offering contained untrue statements of material facts and omitted to state material facts required to be stated therein. The plaintiffs seek unspecified damages, rescindment of our November 12, 2010 securities offering, and an award of costs and expenses, including attorney’s fees.

Between May 4, 2011 and June 17, 2011, four putative shareholder derivative complaints were filed against us (as a nominal defendant) and certain of our directors in the United States District Court for the District of Massachusetts. On July 5, 2011, the District Court consolidated three of these actions, and that matter is now captioned In re American Superconductor Corporation Derivative Litigation, Docket No. 1:11-cv-10784-WGY. On June 1, 2011, the plaintiff in the fourth action, Marlborough Family Revocable Trust v. Yurek, et al., moved to voluntarily dismiss its complaint and refiled its complaint in Superior Court for the Commonwealth of Massachusetts, Middlesex County. On September 7, 2011, the Marlborough action and another putative shareholder derivative complaint filed in Superior Court for the Commonwealth of Massachusetts were consolidated. That consolidated matter is captioned Marlborough Family Revocable Trust v. Yurek, et al., Docket No. 11-1961. On January 12, 2012, an additional shareholder derivative complaint was filed in the Court of Chancery for the State of Delaware. That matter is captioned Krasnoff v. Budhraja, et al., Docket No. 7171. The allegations of the derivative complaints mirror the allegations made in the putative class action complaints described above. The plaintiffs purport to assert claims against the director defendants for breach of fiduciary duty, abuse of control, gross mismanagement and corporate waste. The plaintiffs seek unspecified damages on behalf of us, as well as an award of costs and expenses, including attorney’s fees.

If a matter is both probable to result in liability and the amounts of loss can be reasonably estimated, we estimate and disclose the possible loss or range of loss. With respect to the above referenced litigation matters, such an estimate cannot be made. There are numerous factors that make it difficult to meaningfully estimate possible loss or range of loss at this stage of these litigation matters, including that: the proceedings are in relatively early stages, there are significant factual and legal issues to be resolved, information obtained or rulings made during the lawsuits could affect the methodology for calculation of rescission and the related statutory interest rate. In addition, with respect to claims where damages are the requested relief, no amount of loss or damages has been specified. Therefore, we are unable at this time to estimate possible losses. We believe that these litigations are without merit, and we intend to defend these actions vigorously.

On September 13, 2011, we commenced a series of legal actions in China against Sinovel Wind Group Co. Ltd. (“Sinovel”). Our Chinese subsidiary, Suzhou AMSC Superconductor Co. Ltd., filed a claim for arbitration with the Beijing Arbitration Commission in accordance with the terms of our supply contracts with Sinovel. The case is captioned (2011) Jin Zhong An Zi No. 0693. On March 31, 2011, Sinovel refused to accept contracted shipments of 1.5 megawatt (MW) and 3 MW wind turbine core electrical components and spare parts that we were prepared to deliver. We allege that these actions constitute material breaches of our contracts because Sinovel did not give us notice that it intended to delay deliveries as required under the contracts. Moreover, we allege that Sinovel has refused to pay past due amounts for prior shipments of core electrical components and spare parts. We are seeking compensation for past product shipments (including interest) and monetary damages in the amount of approximately RMB 430 million ($67 million) due to Sinovel’s breaches of our contracts. We are also seeking specific performance of our existing contracts as well as reimbursement of all costs and reasonable expenses with respect to the arbitration. The value of the undelivered components under the existing contracts, including the deliveries refused by Sinovel in March 2011, amounts to approximately RMB 4.6 billion ($720 million).

On October 8, 2011, Sinovel filed with the Beijing Arbitration Commission an application under the caption (2011) Jing

37

Zhong An Zi No. 0693, for a counterclaim against the Company for breach of the same contracts under which the Company filed its original arbitration claim. Sinovel claimed, among other things, that the goods supplied by the Company do not conform to the standards specified in the contracts and claimed damages in the amount of approximately RMB 370 million ($58 million). On October 17, 2011, Sinovel filed with the Beijing Arbitration Commission a request for change of counterclaim to increase its damage claim to approximately RMB 1 billion ($157 million). On December 22, 2011, Sinovel filed with the Beijing Arbitration Commission an additional request for change of counterclaim to increase its damages claim to approximately RMB 1.2 billion ($190 million). Deducting the RMB 430 million ($67 million) of past products shipments claimed by the Company, the net amount of damages claimed by Sinovel is approximately RMB 770 million ($120 million). We believe that Sinovel’s claims are without merit and we intend to defend these actions vigorously. Since the proceedings in this matter are in relatively early stages, we cannot reasonably estimate possible losses or range of losses at this time.

We also submitted a civil action application to the Beijing No. 1 Intermediate People’s Court under the caption (2011) Yi Zhong Min Chu Zi No. 15524, against Sinovel for software copyright infringement on September 13, 2011. The application alleges Sinovel’s unauthorized use of portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines and the binary code, or upper layer, of our software for the PM3000 power converters in 1.5MW wind turbines. In July 2011, a former employee of our AMSC Windtec GmbH subsidiary was arrested in Austria on charges of economic espionage and fraudulent manipulation of data. In September 2011, the former employee pled guilty to the charges, and he is currently serving a prison sentence. As a result of our internal investigation and a criminal investigation conducted by Austrian authorities, we believe that this former employee was contracted by Sinovel through an intermediary while employed by us and improperly obtained and transferred to Sinovel portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines. Moreover, we believe the former employee illegally used source code to develop for Sinovel a software modification to circumvent the encryption and remove technical protection measures on the PM3000 power converters in 1.5MW wind turbines in the field. We are seeking a cease and desist order with respect to the unauthorized copying, installation and use of our software, monetary damages of approximately RMB 38 million ($6 million) for our economic losses and reimbursement of all costs and reasonable expenses. The Beijing No. 1 Intermediate People’s Court accepted the case, which was necessary in order for the case to proceed. In November 2011, Sinovel filed a motion to remove this case from the Beijing No. 1 Intermediate People’s Court and to transfer the matter to the Beijing Arbitration Commission. We are awaiting the court’s decision.

We submitted a civil action application to the Beijing Higher People’s Court against Sinovel and certain of its employees for trade secret infringement on September 13 2011 under the caption (2011) Gao Min Chu Zi No. 4193. The application alleges the defendants’ unauthorized use of portions of our wind turbine control software source code developed for Sinovel’s 1.5MW wind turbines as described above with respect to the Copyright Action. We are seeking monetary damages of RMB 2.9 billion ($453 million) for the trade secret infringement as well as reimbursement of all costs and reasonable expenses. The Beijing Higher People’s Court has accepted the case, which was necessary in order for the case to proceed. On December 22, 2011 the Beijing Higher People’s Court transferred the case to the Beijing No. 1 Intermediate People’s Court under the caption (2011) Gao Min Chu Zi No. 4193. We are currently awaiting notice from the Beijing No. 1 Intermediate People’s Court regarding the evidence submission deadline and the first hearing date.

On September 16, 2011, we filed a civil copyright infringement complaint in the Hainan Province No. 1 Intermediate People’s Court against Dalian Guotong Electric Co. Ltd. (“Guotong”), a supplier of power converter products to Sinovel, and Huaneng Hainan Power, Inc. (“Huaneng”), a wind farm operator that has purchased Sinovel wind turbines containing Guotong power converter products. The case is captioned (2011) Hainan Yi Zhong Min Chu Zi No. 62. The application alleges that our PM1000 converters in certain Sinovel wind turbines have been replaced by converters produced by Guotong. Because the Guotong converters are being used in wind turbines containing our wind turbine control software, we believe that our copyrighted software is being infringed. We are seeking a cease and desist order with respect to the unauthorized use of our software, monetary damages of RMB 1.2 million ($0.2 million) for our economic losses (with respect to Guotong only) and reimbursement of all costs and reasonable expenses. The court has accepted the case, which was necessary in order for the case to proceed. In addition, upon the request of the defendant Huaneng, Sinovel has been added by the court to this case as a defendant and Huaneng has been released from this case. In December 2011, Sinovel filed a jurisdiction opposition motion requesting dismissal by the Hainan Province No. 1 Intermediate People’s Court, saying the case should be governed by the Beijing Arbitration Commission. On February 3, 2012, we received the Civil Ruling from the court, which granted Sinovel’s motion, and dismissed the entire case. We plan to appeal the court’s ruling.

Ghodawat Energy Pvt Ltd (“Ghodawat”), a company registered in India carrying on the business of wind power development, lodged a Request for Arbitration with the Secretariat of the ICC International Court of Arbitration on May 12,

38

2011 and named AMSC Windtec GmbH (“AMSC Windtec”) as the Respondent. Under the Request for Arbitration, Ghodawat alleges that AMSC Windtec breached an agreement dated March 19, 2008 pursuant to which AMSC Windtec granted a license to Ghodawat to manufacture, use, sell, market, erect, commission and maintain certain wind turbines using its technical information and wind turbine design (the “License Agreement”). Under the Request for Arbitration, Ghodawat’s claims in this arbitration amount to approximately €18 million ($24 million). AMSC Windtec filed an Answer to Request for Arbitration and Counterclaim (“Answer and Counterclaim”), in which AMSC Windtec denied Ghodawat’s claims in their entirety. AMSC Windtec has also submitted counterclaims under the License Agreement against Ghodawat in the amount of approximately €6 million ($9 million). Ghodawat has filed a Reply to Answer to Request for Arbitration and Counterclaim in which it denies AMSC Windtec’s counterclaims. The arbitration proceedings are currently ongoing. We have recorded a loss contingency based on our assessment of probable losses on this claim, however this amount is immaterial to our consolidated financial statements.

ITEM 1A. RISK FACTORS

Investing in our common stock involves a high degree of risk. In addition to the other information set forth in this Quarterly Report on Form 10-Q, you should carefully consider factors discussed in Part I, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended March 31, 2011, which could materially affect our business, financial condition or future results. To the best of our knowledge, as of the date of this report there has been no material change in any risk factors described in our Annual Report on Form 10-K, except for deleting the risk factors entitled “We will require significant additional funding and may be unable to raise capital when needed, which could force us to delay, reduce or eliminate planned activities, including the planned acquisition of The Switch Engineering Oy,” “If we fail to complete the planned acquisition of The Switch, our operating results and financial condition could be harmed and the price of our common stock could decline” and “Completion of the planned acquisition of The Switch could present certain risks” following the Company’s termination of its agreement to acquire The Switch due to adverse market conditions for a financing required to fund the acquisition. In addition, we have added the following risk factor:

We intend to seek additional funding and may be unable to raise capital when needed.

As of December 31, 2011, we had approximately $75.5 million of cash, cash equivalents, marketable securities and restricted cash. We have experienced a substantial decline in revenues and incurred a net loss of $115.7 million during the nine months ended December 31, 2011. We plan to continue to closely monitor our expenses and if required, will further reduce operating costs and capital spending to enhance liquidity. We are working with our inventory suppliers to delay cash settlements and, reduce the gross liability associated with our adverse purchase commitments. We believe that our available cash, together with additional reductions in operating costs and capital expenditures as necessary, will be sufficient to fund our operations, capital expenditures and other cash requirements for the next twelve months. To bolster our long-term liquidity, we intend to seek financing through means that may include public and private equity offerings, debt financings, and other financing alternatives. However, there can be no assurance that financing will be available on commercially acceptable terms or at all. Our liquidity is highly dependent on our ability to profitably grow revenues, successfully manage our adverse purchase order commitments and raise additional capital as required.

ITEM 2 UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

ITEM 6. EXHIBITS

See the Exhibit Index on the page immediately preceding the exhibits for a list of exhibits filed as part of this quarterly report, which Exhibit Index is incorporated herein by this reference.

39

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	AMERICAN SUPERCONDUCTOR CORPORATION
Date: February 9, 2012	By:	/s/ David A. Henry
		David A. Henry
		Senior Vice President and Chief Financial Officer
		(Principal Financial and Accounting Officer)

40

EXHIBIT INDEX

Exhibit No.	Description
3.1	Restated Certificate of Incorporation, as amended
10.1	Termination Agreement dated as of October 28, 2011 by and between the Shareholders of The Switch Engineering Oy, a limited liability company incorporated and existing under the laws of Finland (“The Switch”), the Registrant and The Switch. (1)
31.1	Chief Executive Officer—Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Chief Financial Officer—Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Chief Executive Officer—Certification pursuant to Rule13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Chief Financial Officer—Certification pursuant to Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document.**
101.SCH	XBRL Taxonomy Extension Schema Document.**
101.CAL	XBRL Taxonomy Calculation Linkbase Document.**
101.LAB	XBRL Taxonomy Label Linkbase Document.**
101.PRE	XBRL Taxonomy Presentation Linkbase Document.**
101.DEF	XBRL Taxonomy Definition Linkbase Document.**

** submitted electronically herewith

Attached as Exhibits 101 to this report are the following formatted in XBRL (Extensible Business Reporting Language): (i) Condensed Consolidated Statements of Operations for the three and nine months ended December 31, 2011 and 2010, (ii) Condensed Consolidated Balance Sheets as of December 31, 2011 and March 31, 2011, (iii) Condensed Consolidated Statements of Comprehensive (Loss) Income for the three and nine months ended December 31, 2011 and 2010, (iv) Condensed Consolidated Statements of Cash Flows for the nine months ended December 31, 2011 and 2010, and (v) Notes to Condensed Consolidated Financial Statements.

In accordance with Rule 406T of Regulation S-T, the XBRL related information in Exhibit 101 to this Quarterly Report on Form 10-Q is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, as amended, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, and otherwise is not subject to liability under these sections.

(1) Incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K filed with the Commission on October 31, 2011 (Commission File No. 000-19672)

41

EX-3.1

Exhibit 3.1

RESTATED

CERTIFICATE OF INCORPORATION

OF

AMERICAN SUPERCONDUCTOR CORPORATION

AMERICAN SUPERCONDUCTOR CORPORATION (the “Corporation”), a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify as follows:

1. The Corporation filed its original Certificate of Incorporation with the Secretary of State of Delaware on April 9, 1987.

2. The Board of Directors of the Corporation duly adopted, pursuant to Section 245 of the General Corporation Law of the State of Delaware, a Restated Certificate of Incorporation of the Corporation. Such Restated Certificate of Incorporation only restates and integrates, and does not further amend, the provisions of the Corporation’s Certificate of Incorporation, as therefore amended or supplemented, and there is no discrepancy between those provisions and the provisions of the Restated Certificate of Incorporation.

3. The Restated Certificate of Incorporation, as adopted by the Board of Directors of the Corporation, is as follows:

FIRST. The name of the Corporation is American Superconductor Corporation.

SECOND. The address of its registered office in the State of Delaware is Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware 19801. The name of its registered agent at such address in The Corporation Trust Company.

THIRD. The nature of the business or purposes to be conducted or promoted is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of Delaware.

FOURTH. The total number of shares of capital stock which the Corporation shall have authority to issue is Twenty Million (20,000,000) shares of Common Stock, $.01 par value per share, which capital stock shall have the voting powers, preferences and relative participating, optional or other special rights, qualifications, limitations or restrictions thereof as are set forth below.

The voting and dividend rights, and the rights in the event of the liquidation of the Corporation, of the holders of the Common Stock are subject to and qualified by such rights of the holders of any Preferred Stock as may be set forth in the terms of any such Preferred Stock.

The holders of the Common Stock are entitled to one vote for each share held at all meetings of stockholders. There shall be no cumulative voting.

Dividends may be declared and paid on the Common Stock from funds lawfully available therefor as and when determined by the Board of Directors and subject to any preferential dividend rights of any then outstanding Preferred Stock.

Upon the dissolution or liquidation of the Corporation, whether voluntary or involuntary, holders of Common Stock will be entitled to receive pro rata all net assets of the Corporation available for distribution after payment of creditors and of any preferential liquidation rights of any then outstanding Preferred Stock.

FIFTH. The Corporation is to have perpetual existence.

SIXTH. In furtherance and not in limitation of the powers conferred by the laws of the State of Delaware:

A. The board of directors of the Corporation is expressly authorized to adopt, amend or repeal the by-laws of the Corporation.

B. Elections of directors need not be by written ballot unless the by-laws of the Corporation shall so provide.

C. The books of the Corporation may be kept as such place within or without the State of Delaware as the by-laws of the Corporation may provide or as may be designated from time to time by the board of directors of the Corporation.

-2-

SEVENTH. Whenever a compromise or arrangement is proposed between this Corporation and its creditors or any class of them and/or between this Corporation and its stockholders or any class of them, any court of equitable jurisdiction within the State of Delaware may, on the application in a summary way of this Corporation or of any creditor or stockholder thereof or on the application of any receiver or receivers appointed for this Corporation under the provisions of Section 291 of Title 8 of the Delaware Code or on the application of trustees in dissolution or of any receiver or receivers appointed for this Corporation under the provisions of Section 279 of Title 8 of the Delaware Code, order a meeting of the creditors or class of creditors, and/or of the stockholders or class of stockholders of this Corporation, as the case may be, to be summoned in such manner as the said court directs. If a majority in number representing three-fourths in value of the creditors or class of creditors, and/or of the stockholders or class of stockholders of this Corporation, as the case may be, agree to any compromise or arrangement to any reorganization of this Corporation as consequence of such compromise or arrangement, the said compromise or arrangement and the said reorganization shall, if sanctioned by the court to which the said application has been made, be binding on all the creditors or class of creditors, and/or on all the stockholders or class of stockholders, of this Corporation, as the case may be, and also on this Corporation.

EIGHTH. The Corporation eliminates the personal liability of each member of its board of directors to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, provided that the foregoing shall not eliminate the liability of a director (i) for any breach of such director’s duty of loyalty to the Corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) under Section 174 of Title 8 of the Delaware Code or (iv) for any transaction from which such director derived an improper personal benefit.

NINTH. The Corporation reserves the right to amend or repeal any provision contained in this certificate of incorporation, in the manner now or hereafter prescribed by statute, and all rights conferred upon a stockholder herein are granted subject to this reservation.

-3-

IN WITNESS WHEREOF, the Corporation has caused its corporate seal to be affixed hereto and this Restated Certificate of Incorporation to be signed by its President and attested to by its Secretary this 13th day of January, 1992.

AMERICAN SUPERCONDUCTOR CORPORATION
By:	/s/ Gregory J. Yurek
	President

ATTEST:

                         [SIGNATURE]

                        Secretary

[Corporate Seal]

-4-

CERTIFICATE OF AMENDMENT

OF

RESTATED CERTIFICATE OF INCORPORATION

OF

AMERICAN SUPERCONDUCTOR CORPORATION

Pursuant to Section 242

of the General Corporation Law of

the State of Delaware

American Superconductor Corporation (hereinafter called the “Corporation”), organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify as follows:

That by resolution of the Directors and Stockholders holding a majority of the stock of the Corporation entitled to vote thereon, resolutions were duly adopted in accordance with the provisions of Sections 141(f), 228 and 242 of the General Corporation Law of the State of Delaware, setting forth an amendment to the Restated Certificate of Incorporation of the Corporation declaring said amendment to be advisable. The resolution setting forth the amendment is as follows:

RESOLVED: That the Restated Certificate of Incorporation of the Corporation (the “Restated Certificate of Incorporation”), be and hereby is amended by deleting Article FOURTH in its entirety and substituting therefor the following:

“FOURTH: The total number of shares of capital stock which the Corporation shall have authority to issue is Fifty Million (50,000,000) shares of Common Stock, $.01 par value per share, which capital stock shall have the voting powers, preferences and relative participating, optional or other special rights, qualifications, limitations or restrictions thereof as are set forth below.

The voting and dividend rights, and the rights in the event of the liquidation of the Corporation, of the holders of the Common Stock are subject to and qualified by such rights of the holders of any Preferred Stock as may be set forth in the terms of any such Preferred Stock.

The holders of Common Stock are entitled to one vote for each share held at all meetings of stockholders. There shall be no cumulative voting.

Dividends may be declared and paid on the Common Stock from funds lawfully available therefor as and when determined by the Board of Directors and subject to any preferential dividend rights of any then outstanding Preferred Stock.

Upon the dissolution or liquidation of the Corporation, whether voluntary or involuntary, holders of Common Stock will be entitled to receive pro rata all net assets of the Corporation available for distribution after payment of creditors and of any preferential liquidation rights of any then outstanding Preferred Stock.”

IN WITNESS WHEREOF, the Corporation has caused its corporate seal to be affixed hereto and this Certificate of Amendment to be signed by its President this 29th day of July, 1998.

AMERICAN SUPERCONDUCTOR CORPORATION
By:	/s/   Gregory J. Yurek
	Gregory J. Yurek President

-2-

CERTIFICATE OF AMENDMENT

OF

RESTATED CERTIFICATE OF INCORPORATION

OF

AMERICAN SUPERCONDUCTOR CORPORATION

Pursuant to Section 242 of the General Corporation Law of the State of Delaware

American Superconductor Corporation (hereinafter called the “Corporation”), organized and existing under and by virtue of the General Corporation Law of the State of Delaware, does hereby certify as follows:

That by resolution of the Directors and Stockholders holding a majority of the stock of the Corporation entitled to vote thereon, resolutions were duly adopted in accordance with the provisions of Sections 141(f), 228 and 242 of the General Corporation Law of the State of Delaware, setting forth an amendment to the Restated Certificate of Incorporation of the Corporation declaring said amendment to be advisable. The resolution setting forth the amendment is as follows:

RESOLVED: That the Restated Certificate of Incorporation of the Corporation (the “Restated Certificate of Incorporation”), be and hereby is amended by deleting Article FOURTH in its entirety and substituting therefor the following:

“FOURTH: The total number of shares of capital stock which the Corporation shall have authority to issue is One Hundred Million (100,000,000) shares of Common Stock, $.01 par value per share, which capital stock shall have the voting powers, preferences and relative participating, optional or other special rights, qualifications, limitations or restrictions thereof as are set forth below.

The voting and dividend rights, and the rights in the event of the liquidation of the Corporation, of the holders of the Common Stock are subject to and qualified by such rights of the holders of any Preferred Stock as may be set forth in the terms of any such Preferred Stock.

The holders of the Common Stock are entitled to one vote for each share held at all meetings of stockholders. There shall be no cumulative voting.

Dividends may be declared and paid on the Common Stock from funds lawfully available therefor as and when determined by the Board of Directors and subject to any preferential dividend rights of any then outstanding Preferred Stock.

Upon the dissolution or liquidation of the Corporation, whether voluntary or involuntary, holders of the Common Stock will be entitled to receive pro rata all net assets of the Corporation available for distribution after payment of creditors and of any preferential liquidation rights of any then outstanding Preferred Stock.”

IN WITNESS WHEREOF, the Corporation has caused its corporate seal to be affixed hereto and this Certificate of Amendment to be signed by its Chief Executive Officer this 29^th day of July, 2004.

AMERICAN SUPERCONDUCTOR CORPORATION
By:	/s/   Gregory J. Yurek
	Gregory J. Yurek Chief Executive Officer

CERTIFICATE OF AMENDMENT

OF

RESTATED CERTIFICATE OF INCORPORATION

OF

AMERICAN SUPERCONDUCTOR CORPORATION

___________________________________________________

Pursuant to Section 242 of the

General Corporation Law of the State of Delaware

___________________________________________________

American Superconductor Corporation, a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify as follows:

The Board of Directors of the Corporation duly adopted resolutions by written consent in lieu of a meeting in accordance with Sections 141(f) and 242 of the General Corporation Law of the State of Delaware setting forth an amendment to the Restated Certificate of Incorporation of the Corporation and declaring said amendment to be advisable. The stockholders of the Corporation duly approved such proposed amendment at a meeting in accordance with Section 242 of the General Corporation Law of the State of Delaware. The resolution setting forth the amendment is as follows:

RESOLVED: That the first sentence of Article FOURTH of the Restated Certificate of Incorporation of the Corporation (the “Charter”) be amended and restated in its entirety to read as follows:

“The total number of shares of capital stock which the Corporation shall have authority to issue is One Hundred and Fifty Million (150,000,000) shares of Common Stock, $.01 par value per share (the “Common Stock”), which capital stock shall have the voting powers, preferences and relative participating, optional or other special rights, qualifications, limitations or restrictions thereof as are set forth below.”

* * *

IN WITNESS WHEREOF, the Corporation has caused this Certificate of Amendment to be signed by its Chief Executive Officer on this 19^th day of December, 2011.

AMERICAN SUPERCONDUCTOR CORPORATION
By:	/s/   Daniel P. McGahn
	Name: Daniel P. McGahn Title: Chief Executive Officer

EX-31.1

Exhibit 31.1

AMERICAN SUPERCONDUCTOR CORPORATION

CERTIFICATIONS

I, Daniel P. McGahn, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of American Superconductor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 9, 2012	By:	/S/ DANIEL P. MCGAHN
		Daniel P. McGahn
		Chief Executive Officer

EX-31.2

Exhibit 31.2

AMERICAN SUPERCONDUCTOR CORPORATION

CERTIFICATIONS

I, David A. Henry, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of American Superconductor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 9, 2012	By:	/S/ DAVID A. HENRY
		David A. Henry
		Chief Financial Officer

EX-32.1

Exhibit 32.1

AMERICAN SUPERCONDUCTOR CORPORATION

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of American Superconductor Corporation (the “Company”) for the period ended December 31, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Daniel P. McGahn, Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 9, 2012	By:	/S/ DANIEL P.  MCGAHN
		Daniel P. McGahn
		Chief Executive Officer

EX-32.2

Exhibit 32.2

AMERICAN SUPERCONDUCTOR CORPORATION

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of American Superconductor Corporation (the “Company”) for the period ended December 31, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, David A. Henry, Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 9, 2012	By:	/S/ DAVID A. HENRY
		David A. Henry
		Chief Financial Officer

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Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Income tax expense (benefit)	$ 84,000	$ (2,495,000)	$ 1,185,000	$ 12,642,000
Additional income tax expense			$ 800,000

XML

Business Segments (Schedule Of Customers Who Represented 10% Or More Of The Company's Total Revenues) (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Inox Wind, Ltd. [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage	27.00%	10.00%	21.00%	10.00%
Doosan Heavy Industries & Construction Co Ltd. [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage	12.00%	10.00%	15.00%	10.00%
Ergon Energy Corporation Limited [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage	11.00%		10.00%
Vestas - Australian Wind Technology Ltd [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage	10.00%	44.00%	10.00%	10.00%
Hyundai Heavy Industries Co., Ltd. [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage	10.00%	10.00%	10.00%	10.00%
Shenyang Blower Works Group Co., Ltd. [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage	10.00%	11.00%	10.00%	10.00%
Sinovel Wind Co., Ltd [Member]
Entity-Wide Revenue, Major Customer [Line Items]
Revenue, percentage				66.00%

XML

Business Segments (Schedule Of Business Segments Operating Results) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Revenues	$ 18,058	$ 31,570	$ 47,916	$ 226,853
Operating (loss) income	(26,569)	(22,960)	(116,020)	6,198
Wind [Member]
Segment Reporting Information [Line Items]
Revenues	10,125	10,840	27,836	183,162
Operating (loss) income	(14,014)	(12,494)	(54,719)	51,499
Grid [Member]
Segment Reporting Information [Line Items]
Revenues	7,933	20,730	20,080	43,691
Operating (loss) income	(6,313)	(8,189)	(24,511)	(35,166)
Unallocated Corporate Expenses [Member]
Segment Reporting Information [Line Items]
Operating (loss) income	$ (6,242)	$ (2,277)	$ (36,790)	$ (10,135)

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Stock-Based Compensation (Schedule Of Weighted-Average Assumptions Used In The Black-Scholes Valuation Model For Stock Options Granted) (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Stock-Based Compensation [Abstract]
Expected volatility	79.70%	61.40%	69.70%	65.50%
Risk-free interest rate	1.10%	2.40%	1.80%	2.10%
Expected life (years)	5.9	6.1	5.9	6.1
Dividend yield	None	None	None	None

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Inventory (Tables)

9 Months Ended

Dec. 31, 2011

Inventory [Abstract]

Components Of Inventory

		December 31,		March 31,
		2011		2011
Raw materials	$	10,279	$	17,100
Work-in-process		4,844		2,432
Finished goods		15,683		3,915
Deferred program costs		3,215		2,381
Net inventory	$	34,021	$	25,828

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Commitments And Contingencies (Details)	1 Months Ended		3 Months Ended	9 Months Ended			0 Months Ended
	Jun. 17, 2011	May 12, 2011	Dec. 31, 2011 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2011 Chinese Yen Line Of Credit [Member] EUR (€)	Dec. 31, 2011 Euro Line Of Credit [Member] USD ($)	Dec. 22, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Dec. 22, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Dec. 22, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Dec. 22, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Dec. 22, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Dec. 22, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Oct. 17, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Oct. 17, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Oct. 08, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Oct. 08, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Sep. 13, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Sep. 13, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Mar. 31, 2011 Sinovel Wind Group Co. Ltd. [Member] USD ($)	Mar. 31, 2011 Sinovel Wind Group Co. Ltd. [Member] CNY	Sep. 16, 2011 Dalian Guotong Electric Co. Ltd. [Member] USD ($)	Sep. 16, 2011 Dalian Guotong Electric Co. Ltd. [Member] CNY	May 12, 2011 AMSC Windtec [Member] USD ($)	May 12, 2011 AMSC Windtec [Member] EUR (€)
Commitments And Contingencies [Line Items]
Adverse purchase commitments included in purchase commitment			$ 28,800,000	$ 28,800,000
Adverse purchase commitment recoveries (losses)			100,000	(100,000)
Number of putative securities complaints	4	7
Number of officers putative securities filed against		2
Claim amount per request for arbitration							190,000,000	1,200,000,000					157,000,000	1,000,000,000	58,000,000	370,000,000							24,000,000	18,000,000
Monetary damages due to breaches of contracts																			67,000,000	430,000,000
Value of the undelivered components																			720,000,000	4,600,000,000
Net amount of damages claimed									67,000,000	430,000,000	120,000,000	770,000,000
Damages claimed for unauthorized use of software																	6,000,000	38,000,000			200,000	1,200,000
Monetary damages for trade secret infringement																	453,000,000	2,900,000,000
Counterclaim under License Agreement																							9,000,000	6,000,000
Number of outstanding performance bonds				2
Total value of outstanding performance bonds				400,000
Performance bond latest expiration date				October 2012
Restricted cash included in current assets			9,000,000	9,000,000
Restricted cash included in long-term assets			2,540,000	2,540,000
Unused, unsecured lines of credit					2,300,000	3,000,000
Net borrowings on lines of credit outstanding			0	0
Lines of credit facility repaid				$ 4,600,000

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Inventory (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2011
Inventory [Abstract]
Raw materials	$ 10,279	$ 10,279		$ 17,100
Work-in-process	4,844	4,844		2,432
Finished goods	15,683	15,683		3,915
Deferred program costs	3,215	3,215		2,381
Net inventory	34,021	34,021		25,828
Inventory write-downs	$ 700	$ 2,150	$ 2,667

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Business Segments (Schedule Of Business Segments Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Mar. 31, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 275,363	$ 441,209
Wind [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	89,370	145,464
Grid [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	70,285	67,081
Corporate Assets [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 115,708	$ 228,664

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Fair Value Measurements

9 Months Ended

Dec. 31, 2011

Fair Value Measurements [Abstract]

Fair Value Measurements

4. Fair Value Measurements

     A valuation hierarchy for disclosure of the inputs to valuation used to measure fair value has been established. This hierarchy prioritizes the inputs into three broad levels as follows:

Level 1 - Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2 - Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).

Level 3 - Unobservable inputs that reflect the Company's assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data.

     A financial asset's or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

     The Company presents financial asset and liability activity on a gross basis within the Level 3 measurement roll-forward and details of transfers in and out of Level 1 and 2 measurements. Changes in the hierarchy of financial assets and liabilities from its current level will be reflected in the period during which the pricing methodology of such investment changes. Disclosure of the transfer of securities from Level 1 to Level 2 or Level 3 will be made in the event that the related security is significant to total cash and investments. The Company did not have any transfers of assets and liabilities between Level 1 and Level 2 of the fair value measurement hierarchy during the three or nine months ended December 31, 2011.

     The following table provides the assets carried at fair value, measured as of December 31, 2011 and March 31, 2011 (in thousands):

		Total		Quoted Prices in		Using Significant Other		Using Significant
		Carrying		Active Markets		Observable Inputs		Unobservable Inputs
		Value		(Level 1)		(Level 2)		(Level 3)
December 31, 2011:
Assets:
Cash equivalents	$	38,474	$	38,474	$	—	$	—
Short-term commercial paper		5,261		—		5,261		—

		Total		Quoted Prices in		Using Significant Other		Using Significant
		Carrying		Active Markets		Observable Inputs		Unobservable Inputs
		Value		(Level 1)		(Level 2)		(Level 3)
March 31, 2011:
Assets:
Cash equivalents	$	49,837	$	49,837	$	—	$	—
Short-term government-backed		76,371		—		76,371		—
securities
Short-term commercial paper		39,755		—		39,755		—
Derivatives		3,087		—		3,087		—

Valuation Techniques

Cash Equivalents

     Cash equivalents consist of highly liquid instruments with maturities of three months or less that are regarded as high quality, low risk investments and are measured using such inputs as quoted prices, and are classified within Level 1 of the valuation hierarchy. Cash equivalents consist principally of certificates of deposits and money market accounts.

Marketable Securities

     Marketable securities consist primarily of government-backed securities and commercial paper and are measured using such inputs as quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset (for example, interest rates and yield curves observable at commonly quoted intervals), and inputs that are derived principally from or corroborated by observable market data by correlation or other means, and are classified within Level 2 of the valuation hierarchy. The Company's marketable securities generally have maturities of greater than three months from original purchase date but less than twelve months from the date of the balance sheet. The Company determines the appropriate classification of its marketable securities at the time of purchase and re-evaluates such classification as of each balance sheet date. All marketable securities are considered available-for-sale and are carried at fair value. The Company periodically reviews the realizability of each short-term and long-term marketable security when impairment indicators exist with respect to the security. If an other-than-temporary impairment of value of the security exists, the carrying value of the security is written down to its estimated fair value.

Derivatives

     The derivatives entered into by the Company are valued using over-the-counter quoted market prices for similar instruments, and are classified within Level 2 of the valuation hierarchy.

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Equity Investments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended				9 Months Ended
	Dec. 31, 2011 Tres Amigas [Member]	May 20, 2011 Tres Amigas [Member]	Jan. 06, 2011 Tres Amigas [Member]	Oct. 09, 2009 Tres Amigas [Member]	Dec. 31, 2011 Blade Dynamics Ltd. [Member]	Aug. 12, 2010 Blade Dynamics Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Acquisition date	October 9, 2009				August 12, 2010
Equity method investment, aggregate cost				$ 1.8
Equity method investment in cash				0.8		8.0
Equity method investment in common stock				1.0
Cash consideration for increase in minority position		$ 1.8	$ 1.8
Equity method investment ownership percentage	34.00%				25.00%

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Business Segments (Tables)

9 Months Ended

Dec. 31, 2011

Business Segments [Abstract]

Schedule Of Business Segments Operating Results

		Three months ended						Nine months ended
		December 31,						December 31,
		2011	2010			2011				2010
Revenues:
Wind	$	10,125		$	10,840		$	27,836	$	183,162
Grid		7,933			20,730			20,080		43,691
Total	$	18,058		$	31,570		$	47,916	$	226,853

								Nine months ended
		Three months ended						December 31,
		December 31,
		2011			2010			2011			2010
Operating (loss) income:
Wind	($	14,014	)	($	12,494	)	($	54,719	)	$	51,499
Grid		(6,313	)		(8,189	)		(24,511	)		(35,166	)
Unallocated corporate		(6,242	)		(2,277	)		(36,790	)		(10,135	)
expenses
Total	($	26,569	)	($	22,960	)	($	116,020	)	$	6,198

Schedule Of Business Segments Assets

		December 31,		March 31,
		2011		2011
Wind	$	89,370	$	145,464
Grid		70,285		67,081
Corporate assets		115,708		228,664
Total	$	275,363	$	441,209

Schedule Of Customers Who Represented 10% Or More Of The Company's Total Revenues

		Three months ended						Nine months ended
		December 31,						December 31,
		2011			2010			2011			2010
Inox Wind, Ltd.		27	%	<	10	%		21	%	<	10	%
Doosan Heavy Industries & Construction Co Ltd.		12	%	<	10	%		15	%	<	10	%
Ergon Energy Corporation Limited		11	%		—		<	10	%		—
Vestas – Australian Wind Technology Ltd	<	10	%		44	%	<	10	%	<	10	%
Hyundai Heavy Industries Co., Ltd.	<	10	%		10	%	<	10	%	<	10	%
Shenyang Blower Works Group Co., Ltd.	<	10	%		11	%	<	10	%	<	10	%
Sinovel Wind Co., Ltd		—			—			—			66	%

XML

Equity Investments (Tables)

9 Months Ended

Dec. 31, 2011

Tres Amigas [Member]

Schedule of Equity Method Investments [Line Items]

Schedule Of Net Investment Activity

Balance at April 1, 2011	$	3,026
Purchase of minority investment		1,800
Minority interest in net losses		(741	)
Balance at December 31, 2011	$	4,085

Blade Dynamics Ltd. [Member]

Schedule of Equity Method Investments [Line Items]

Schedule Of Net Investment Activity

Balance at April 1, 2011	$	7,903
Minority interest in net losses		(880	)
Net foreign exchange rate impact		(561	)
Balance at December 31, 2011	$	6,462

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Equity Investments (Schedule Of Net Investment Activity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]
Net foreign exchange rate impact	$ (1,157)	$ (5,386)	$ (2,264)	$ (1,215)
Blade Dynamics Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Balance at April 1, 2011			7,903
Minority interest in net losses			(880)
Net foreign exchange rate impact			(561)
Balance at December 31, 2011	6,462		6,462
Tres Amigas [Member]
Schedule of Equity Method Investments [Line Items]
Balance at April 1, 2011			3,026
Purchase of minority investment	1,800		1,800
Minority interest in net losses			(741)
Balance at December 31, 2011	$ 4,085		$ 4,085

XML

Description Of The Business And Basis Of Presentation (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 mW	Dec. 31, 2010	Mar. 31, 2011
Entity-Wide Information, Revenue from External Customer [Line Items]
Maximum range of drive trains and power ratings (in megawatts)			10
Cash, cash equivalents, and marketable securities	$ 63,900,000		$ 63,900,000
Net loss	26,271,000	18,158,000	115,660,000	1,150,000
Adverse purchase commitments for inventory	28,763,000		28,763,000		38,763,000
Headcount reduced due to restructuring activities, percentage of work force			50.00%
Expected annual savings due to workforce reduction			50,000,000
Number of workforce persons, minimum	400		400
Loss On Long-Term Purchase Commitment [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Write-off of an advance payment			$ 20,600,000

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Stock-Based Compensation (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based restricted stock granted in period			109,000
Shares granted vesting period, years			three
Stock-based compensation expense	$ 2,118,000	$ 2,248,000	$ 7,697,000	$ 10,073,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation, stock grants in period			815,000
Unrecognized compensation cost for unvested employee stock-based compensation awards outstanding, net of forfeitures	7,400,000		7,400,000
Period over which unrecognized compensation expense is expected to be recognized (years)			2.1
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation, stock grants in period			408,000
Unrecognized compensation cost for unvested employee stock-based compensation awards outstanding, net of forfeitures	4,000,000		4,000,000
Period over which unrecognized compensation expense is expected to be recognized (years)			1.7
Former Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 900,000
Minimum [Member] | U.S. Treasury Rates [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average time period taken in calculating risk-free interest rate, years			5
Maximum [Member] | U.S. Treasury Rates [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average time period taken in calculating risk-free interest rate, years			7

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Computation Of Net (Loss) Income Per Common Share

9 Months Ended

Dec. 31, 2011

Computation Of Net (Loss) Income Per Common Share [Abstract]

Computation Of Net (Loss) Income Per Common Share

3. Computation of Net (Loss) Income per Common Share

     Basic net (loss) income per share ("EPS") is computed by dividing net (loss) income by the weighted-average number of common shares outstanding for the period. Where applicable, diluted EPS is computed by dividing the net (loss) income by the weighted-average number of common shares and dilutive common equivalent shares outstanding during the period, calculated using the treasury stock method. Common equivalent shares include the effect of restricted stock, exercise of stock options and warrants and contingently issuable shares. For the three and nine months ended December 31, 2011 and 2010, 2.4 million shares and 2.0 million shares, respectively, and 2.4 million shares and 2.0 million shares, respectively, were not included in the calculation of diluted EPS as they were considered anti-dilutive.

     The following table reconciles the numerators and denominators of the earnings per share calculation for the three and nine months ended December 31, 2011 and 2010 (in thousands, except per share data):

		Three months ended						Nine months ended
		December 31,						December 31,
		2011			2010			2011			2010
Numerator:
Net loss	$	(26,271	)	$	(18,158	)	$	(115,660	)	$	(1,150	)
Denominator:
Weighted-average shares of common stock outstanding		51,459			48,731			51,120			46,667
Weighted-average shares subject to repurchase		(526	)		(663	)		(331	)		(650	)
Shares used in per-share calculation basic		50,933			48,068			50,789			46,017
Shares used in per-share calculation diluted		50,933			48,068			50,789			46,017
Net loss per share basic	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)
Net loss per share diluted	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)

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Stock-Based Compensation (Summary Of Stock-Based Compensation Expense By Financial Statement Line Item) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	$ 2,118	$ 2,248	$ 7,697	$ 10,073
Cost Of Revenues [Member]
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	138	(6)	908	828
Research And Development [Member]
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	623	237	1,948	1,396
Selling, General And Administrative [Member]
Component of Operating Other Cost and Expense [Line Items]
Stock-based compensation expense	$ 1,357	$ 2,017	$ 4,841	$ 7,849

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Restructuring And Impairments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 sqft
Restructuring And Impairments [Abstract]
Headcount reduced due to restructuring activities, percentage of work force		50.00%
Expected annual savings due to workforce reduction		$ 50
Employee severance and benefit costs	2.2	5.4
Space to be vacated, Kalagenfurt, square feet		8,937
Space to be vacated, Nuremburg, square feet		3,300
Lease rentals discount rate		10.10%
Facility exit costs		0.1
Impairment charge	1.7
Impairment charges of long-lived assets for which there is no remaining future economic benefit	$ 0.2	$ 1.1

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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Mar. 31, 2011
ASSETS
Cash and cash equivalents	$ 58,605	$ 123,783
Marketable securities	5,261	116,126
Accounts receivable, net	14,764	15,259
Inventory	34,021	25,828
Prepaid expenses and other current assets	29,789	32,759
Restricted cash	9,049	5,566
Deferred tax assets	484	484
Total current assets	151,973	319,805
Property, plant and equipment, net	94,073	96,494
Intangibles, net	8,662	7,054
Restricted cash	2,540
Deferred tax assets	5,840	5,840
Other assets	12,275	12,016
Total assets	275,363	441,209
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	39,075	90,273
Adverse purchase commitments	28,763	38,763
Deferred revenue	15,246	10,304
Deferred tax liabilities	5,840	5,840
Total current liabilities	88,924	145,180
Deferred revenue	1,921	2,181
Deferred tax liabilities	484	484
Other	969	509
Total liabilities	92,298	148,354
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock	515	507
Additional paid-in capital	894,129	885,704
Treasury stock	(271)
Accumulated other comprehensive income	1,525	3,817
Accumulated deficit	(712,833)	(597,173)
Total stockholders' equity	183,065	292,855
Total liabilities and stockholders' equity	$ 275,363	$ 441,209

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Business Segments (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 mW	Dec. 31, 2010
Segment Reporting Information [Line Items]
Stock-based compensation expense	$ 2,118,000	$ 2,248,000	$ 7,697,000	$ 10,073,000
Maximum range of drive trains and power ratings (in megawatts)			10
Unallocated Corporate Expenses [Member]
Segment Reporting Information [Line Items]
Advance payment to The Switch			20,600,000
Restructuring costs and asset impairment charges	4,100,000		8,400,000
Stock-based compensation expense	$ 2,100,000	$ 2,200,000	$ 7,700,000	$ 10,100,000

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Description Of The Business And Basis Of Presentation

9 Months Ended

Dec. 31, 2011

Description Of The Business And Basis Of Presentation [Abstract]

Description Of The Business And Basis Of Presentation

1. Description of the Business and Basis of Presentation

     American Superconductor Corporation ("AMSC" or the "Company") was founded on April 9, 1987. The Company is a leading provider of megawatt-scale solutions that lower the cost of wind power and enhance the performance of the power grid. In the wind power market, the Company enables manufacturers to field wind turbines through its advanced engineering, support services and power electronics products. In the power grid market, the Company enables electric utilities and renewable energy project developers to connect, transmit and distribute power through its transmission planning services and power electronics and superconductor-based products. The Company's wind and power grid products and services provide exceptional reliability, security, efficiency and affordability to its customers.

     These unaudited condensed consolidated financial statements of the Company have been prepared in accordance with the Securities and Exchange Commission's ("SEC") instructions to Form 10-Q. Certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States ("GAAP") have been condensed or omitted pursuant to those instructions. The year-end condensed balance sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The unaudited condensed consolidated financial statements, in the opinion of management, reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of the results for the interim periods ended December 31, 2011 and 2010 and the financial position at December 31, 2011. The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions are eliminated in consolidation. Certain reclassifications of prior year amounts have been made to conform to current year presentation. These reclassifications had no effect on net income, cash flows from operating activities or stockholders' equity.

     The Company operates its business in two market-facing business units: Wind and Grid. The Company believes this market-centric structure enables it to effectively anticipate and meet the needs of wind turbine manufacturers, power generation project developers and electric utilities.

• Wind. Through its Windtec Solutions, the Wind business segment enables manufacturers to field wind turbines with exceptional power output, reliability and affordability. The Company licenses its highly engineered wind turbine designs, provides extensive customer support services and supplies advanced power electronics and control systems to wind turbine manufactures. The Company's design portfolio includes a broad range of drive trains and power ratings up to 10 megawatts. The Company believes its unique engineering capabilities, ranging from bearings to advanced synchronous generators to blades, enables it to provide its partners with highly-optimized wind turbine platforms. Furthermore, these designs and support services typically lead to sales of its power electronics and software-based control systems, which are designed for optimized performance, efficiency and grid compatibility.
• Grid. Through its Gridtec Solutions, the Grid business segment enables electric utilities and renewable energy project developers to connect, transmit and distribute power with exceptional efficiency, reliability and affordability. The Company provides transmission planning services that allow it to identify power grid congestion, poor power quality and other risks, which helps it determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems and transmission and distribution cable systems.

     On March 12, 2011, the Company entered into a Share Purchase Agreement, by and among the Company and the shareholders of The Switch Engineering Oy, a power technologies company headquartered in Finland ("The Switch"), which was amended on June 29, 2011 (as amended, the "Agreement"). Pursuant to the Agreement, the Company agreed to acquire all of the outstanding shares of The Switch. On October 28, 2011, the Company and The Switch entered into a termination agreement pursuant to which the parties mutually agreed to terminate the Agreement due to adverse market conditions for a financing required to fund the acquisition. Under the termination agreement, The Switch retained a $20.6 million advance payment as a break-up fee. As a result, the Company recorded a write-off of the advance payment during the nine months ended December 31, 2011.

     At December 31, 2011, the Company had cash, cash equivalents, and marketable securities of $63.9 million. The Company has experienced a substantial decline in revenues and incurred a net loss of $115.7 million during the nine months ended December 31, 2011. The Company's business plan anticipates a substantial use of cash from operations in its fiscal year ending March 31, 2012 in light of the difficult and uncertain current economic environment in China, the significant restructuring actions undertaken and the slowdown in the Chinese wind power market, which has accounted for more than two-thirds of the Company's revenues in recent fiscal years. At December 31, 2011, the Company has accrued liabilities related to adverse purchase commitments for inventory totaling $28.8 million. From April 1, 2011 through the date of this filing, the Company has reduced its global workforce by approximately 50%, which is expected to result in annual savings of approximately $50 million. As of December 31, 2011, the Company has a global workforce of over 400 persons. The Company�s cost reduction efforts and anticipated revenue growth are expected to result in a substantial reduction in cash used for operations during the fiscal year ended March 31, 2013. The Company plans to continue to closely monitor its expenses and if required, will further reduce operating costs and capital spending to enhance liquidity. The Company is working with its inventory suppliers to delay cash settlements and reduce the gross liability associated with its adverse purchase commitments. The Company believes that its available cash, together with additional reductions in operating costs and capital expenditures as necessary, will be sufficient to fund its operations, capital expenditures and other cash requirements for the next twelve months. To bolster its long-term liquidity, the Company intends to seek financing through means that may include public and private equity offerings, debt financings, and other financing alternatives. However, there can be no assurance that financing will be available on commercially acceptable terms or at all. The Company's liquidity is highly dependent on its ability to profitably grow its revenues, successfully manage its adverse purchase order commitments and raise additional capital as required.

     The results of operations for an interim period are not necessarily indicative of the results of operations to be expected for the fiscal year. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the fiscal year ended March 31, 2011 (fiscal 2010) which are contained in the Company's Annual Report on Form 10-K.

     The Company's fiscal year begins on April 1 and ends on March 31. This document refers to fiscal 2011, which is defined as the period beginning on April 1, 2011 and concluding on March 31, 2012. The third quarter of fiscal 2011 began on October 1, 2011 and concluded on December 31, 2011.

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Fair Value Measurements (Details) (USD $)	3 Months Ended
	Dec. 31, 2011	Mar. 31, 2011
Fair Value, Option, Quantitative Disclosures [Line Items]
Cash equivalents	$ 38,474,000	$ 49,837,000
Short-term government-backed securities		76,371,000
Short-term commercial paper	5,261,000	39,755,000
Derivatives		3,087,000
Transfers of assets and liabilities between Level 1 and Level 2	0
Quoted Prices In Active Markets (Level 1) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Cash equivalents	38,474,000	49,837,000
Using Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Short-term government-backed securities		76,371,000
Short-term commercial paper	5,261,000	39,755,000
Derivatives		$ 3,087,000

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Computation Of Net (Loss) Income Per Common Share (Tables)

9 Months Ended

Dec. 31, 2011

Computation Of Net (Loss) Income Per Common Share [Abstract]

Schedule Of Earnings Per Share Calculation

		Three months ended						Nine months ended
		December 31,						December 31,
		2011			2010			2011			2010
Numerator:
Net loss	$	(26,271	)	$	(18,158	)	$	(115,660	)	$	(1,150	)
Denominator:
Weighted-average shares of common stock outstanding		51,459			48,731			51,120			46,667
Weighted-average shares subject to repurchase		(526	)		(663	)		(331	)		(650	)
Shares used in per-share calculation basic		50,933			48,068			50,789			46,017
Shares used in per-share calculation diluted		50,933			48,068			50,789			46,017
Net loss per share basic	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)
Net loss per share diluted	$	(0.52	)	$	(0.38	)	$	(2.28	)	$	(0.02	)

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Accounts Receivable (Details) (USD $)	Dec. 31, 2011	Mar. 31, 2011
Accounts Receivable [Abstract]
Accounts receivable (billed)	$ 11,708,000	$ 10,938,000
Accounts receivable (unbilled)	3,308,000	5,004,000
Less: Allowance for doubtful accounts	(252,000)	(683,000)
Accounts receivable, net	14,764,000	15,259,000
Notes receivable outstanding	$ 3,200,000	$ 2,000,000

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Accounts Receivable (Tables)

9 Months Ended

Dec. 31, 2011

Accounts Receivable [Abstract]

Schedule Of Accounts Receivable

		December 31,			March 31,
		2011			2011
Accounts receivable (billed)	$	11,708		$	10,938
Accounts receivable (unbilled)		3,308			5,004
Less: Allowance for doubtful accounts		(252	)		(683	)
Accounts receivable, net	$	14,764		$	15,259

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Stock-Based Compensation

9 Months Ended

Dec. 31, 2011

Stock-Based Compensation [Abstract]

Stock-Based Compensation

2. Stock-Based Compensation

     The Company accounts for its stock-based compensation at fair value. The following table summarizes stock-based compensation expense by financial statement line item for the three and nine months ended December 31, 2011 and 2010 (in thousands):

		Three months ended					Nine months ended
		December 31,					December 31,
		2011		2010			2011		2010
Cost of revenues	$	138	$	(6	)	$	908	$	828
Research and development		623		237			1,948		1,396
Selling, general and administrative		1,357		2,017			4,841		7,849
Total	$	2,118	$	2,248		$	7,697	$	10,073

     During the nine months ended December 31, 2011, the Company granted approximately 815,000 and 408,000 shares of stock options and restricted stock, respectively, to employees under the 2007 Stock Incentive Plan. The restricted stock granted during the nine months ended December 31, 2011 includes approximately 109,000 shares of performance-based restricted stock, which will vest upon achievement of certain financial performance measurements. The Company recognizes the fair value of the performance based awards over the estimated period of each award for which the achievement of the performance measures are probable to occur. As of December 31, 2011, the Company has assessed the weighted average probability for these awards as likely to occur and has recorded expenses accordingly. The remaining shares granted vest upon the passage of time, generally three years. For awards that vest upon the passage of time, expense is being recorded over the vesting period.

     The estimated fair value of the Company's stock-based awards, less expected annual forfeitures, is amortized over the awards' service period. The total unrecognized compensation cost for unvested outstanding stock options was $7.4 million as of December 31, 2011. This expense will be recognized over a weighted average expense period of approximately 2.1 years. The total unrecognized compensation cost for unvested outstanding restricted stock was $4.0 million as of December 31, 2011. This expense will be recognized over a weighted average expense period of approximately 1.7 years.

     The weighted-average assumptions used in the Black-Scholes valuation model for stock options granted during the three and nine months ended December 31, 2011 and 2010 are as follows:

	Three months ended				Nine months ended
	December 31,				December 31,
	2011		2010		2011		2010
Expected volatility	79.7	%	61.4	%	69.7	%	65.5	%
Risk-free interest rate	1.1	%	2.4	%	1.8	%	2.1	%
Expected life (years)	5.9		6.1		5.9		6.1
Dividend yield	None		None		None		None

     The expected volatility rate was estimated based on an equal weighting of the historical volatility of the Company's common stock and the implied volatility of the Company's traded options. The expected term was estimated based on an analysis of the Company's historical experience of exercise, cancellation, and expiration patterns. The risk-free interest rate is based on the average of the five and seven year U.S. Treasury rates.

     In conjunction with the departure of certain former executive officers, the Company agreed to modify certain vested awards by extending the period over which two former officers would be entitled to exercise stock options and accelerated the vesting of certain other outstanding awards for one former officer. Accordingly, the Company recorded stock-based compensation expense related to these modifications of $0.9 million in the nine months ended December 31, 2011.

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Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Condensed Consolidated Statements Of Operations [Abstract]
Revenues	$ 18,058	$ 31,570	$ 47,916	$ 226,853
Cost and operating expenses:
Cost of revenues	18,918	31,528	57,810	149,167
Research and development	5,928	8,417	21,339	23,610
Selling, general and administrative	15,402	14,192	54,952	46,724
Write-off of advance payment			20,551
Amortization of acquisition related intangibles	287	393	891	1,154
Restructuring and impairments	4,092		8,393
Total cost and operating expenses	44,627	54,530	163,936	220,655
Operating (loss) income	(26,569)	(22,960)	(116,020)	6,198
Interest (expense) income, net	(11)	171	232	549
Other income, net	393	2,136	1,313	4,745
(Loss) income before income tax expense (benefit)	(26,187)	(20,653)	(114,475)	11,492
Income tax expense (benefit)	84	(2,495)	1,185	12,642
Net loss	$ (26,271)	$ (18,158)	$ (115,660)	$ (1,150)
Net loss per common share
Basic	$ (0.52)	$ (0.38)	$ (2.28)	$ (0.02)
Diluted	$ (0.52)	$ (0.38)	$ (2.28)	$ (0.02)
Weighted average number of common shares outstanding
Basic	50,933	48,068	50,789	46,017
Diluted	50,933	48,068	50,789	46,017

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Business Segments

9 Months Ended

Dec. 31, 2011

Business Segments [Abstract]

Business Segments

12. Business Segments

     Business segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision-making group, in assessing performance and deciding how to allocate resources.

     The Company segments its business into two market-facing business units: Wind and Grid. The Company believes this market-centric structure enables it to more effectively anticipate and meet the needs of wind turbine manufacturers, power generation project developers and electric utilities.

• Wind. Through its Windtec Solutions, the Wind business segment enables manufacturers to field wind turbines with exceptional power output, reliability and affordability. The Company licenses its highly engineered wind turbine designs, provides extensive customer support services and supplies advanced power electronics and control systems to wind turbine manufactures. The Company's design portfolio includes a broad range of drive trains and power ratings up to 10 megawatts. The Company believes its unique engineering capabilities, ranging from bearings to advanced synchronous generators to blades, enables it to provide its partners with highly-optimized wind turbine platforms. Furthermore, these designs and support services typically lead to sales of its power electronics and software-based control systems, which are designed for optimized performance, efficiency and grid compatibility.
• Grid. Through its Gridtec Solutions, the Grid business segment enables electric utilities and renewable energy project developers to connect, transmit and distribute power with exceptional efficiency, reliability and affordability. The Grid business unit provides transmission planning services that allow us to identify power grid congestion, poor power quality and other risks, which helps the Company determine how its solutions can improve network performance. These services often lead to sales of grid interconnection solutions for wind farms and solar power plants, power quality systems and transmission and distribution cable systems.

     Prior to April 1, 2011, the Company segmented its operations through two technology-centric business units: AMSC Power Systems and AMSC Superconductors. AMSC Power Systems included all of its Wind products, as well as Grid products that regulate voltage for wind farm voltage electric utilities, renewable generation project developers and industrial operations. Solutions from the Company's AMSC Superconductors business unit have been incorporated into its Grid business unit. All prior period segment disclosures have been revised to conform to management's current view of the Company's business segments.

The operating results for the two business segments are as follows (in thousands):

		Three months ended						Nine months ended
		December 31,						December 31,
		2011	2010			2011				2010
Revenues:
Wind	$	10,125		$	10,840		$	27,836	$	183,162
Grid		7,933			20,730			20,080		43,691
Total	$	18,058		$	31,570		$	47,916	$	226,853

								Nine months ended
		Three months ended						December 31,
		December 31,
		2011			2010			2011			2010
Operating (loss) income:
Wind	($	14,014	)	($	12,494	)	($	54,719	)	$	51,499
Grid		(6,313	)		(8,189	)		(24,511	)		(35,166	)
Unallocated corporate		(6,242	)		(2,277	)		(36,790	)		(10,135	)
expenses
Total	($	26,569	)	($	22,960	)	($	116,020	)	$	6,198

     The accounting policies of the business segments are the same as those for the consolidated Company. The Company's business segments have been determined in accordance with the Company's internal management structure, which is organized based on operating activities. The Company evaluates performance based upon several factors, of which the primary financial measures are segment revenues and segment operating (loss) income. The disaggregated financial results of the segments reflect allocation of certain functional expense categories consistent with the basis and manner in which Company management

internally disaggregates financial information for the purpose of assisting in making internal operating decisions. In addition, certain corporate expenses which the Company does not believe are specifically attributable or allocable to either of the two business segments have been excluded from the segment operating (loss) income.

     For the three and nine months ended December 31, 2011, unallocated corporate expenses primarily consist of restructuring and impairment charges of $4.1 million and $8.4 million, respectively, and stock-based compensation expense of $2.1 million and $7.7 million, respectively. In addition, the nine months ended December 31, 2011 includes expense of $20.6 million for the write-off of an advanced payment to The Switch. Unallocated corporate expenses primarily consist of stock-based compensation expense of $2.2 million and $10.1 million for the three and nine months ended December 31, 2010, respectively.

Total assets for the two business segments are as follows (in thousands):

		December 31,		March 31,
		2011		2011
Wind	$	89,370	$	145,464
Grid		70,285		67,081
Corporate assets		115,708		228,664
Total	$	275,363	$	441,209

The following table sets forth customers who represented 10% or more of the Company's total revenues:

		Three months ended						Nine months ended
		December 31,						December 31,
		2011			2010			2011			2010
Inox Wind, Ltd.		27	%	<	10	%		21	%	<	10	%
Doosan Heavy Industries & Construction Co Ltd.		12	%	<	10	%		15	%	<	10	%
Ergon Energy Corporation Limited		11	%		—		<	10	%		—
Vestas – Australian Wind Technology Ltd	<	10	%		44	%	<	10	%	<	10	%
Hyundai Heavy Industries Co., Ltd.	<	10	%		10	%	<	10	%	<	10	%
Shenyang Blower Works Group Co., Ltd.	<	10	%		11	%	<	10	%	<	10	%
Sinovel Wind Co., Ltd		—			—			—			66	%

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Document And Entity Information	9 Months Ended
	Dec. 31, 2011	Jan. 31, 2012
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2011
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Entity Registrant Name	AMERICAN SUPERCONDUCTOR CORP /DE/
Entity Central Index Key	0000880807
Current Fiscal Year End Date	--03-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		51,465,999

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Recent Accounting Pronouncements

9 Months Ended

Dec. 31, 2011

Recent Accounting Pronouncements [Abstract]

Recent Accounting Pronouncements

13. Recent Accounting Pronouncements

     In December 2010, the FASB issued Accounting Standards Update (ASU) No. 2010-29, Business Combinations (Topic 805), Disclosure of Supplementary Pro forma Information for Business Combinations a consensus of the FASB Emerging Issues Task Force (ASC 2010-29). This amendment clarifies the periods for which pro forma financial information is presented. The disclosures include pro forma revenue and earnings of the combined entity for the current reporting period as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. If comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the comparable prior reporting period should be reported as though the acquisition date for all business combinations that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. ASU 2010-29 is effective prospectively for business combinations that occur on or after the beginning of the first annual reporting period beginning after December 15, 2010. The adoption of ASU 2010-29 did not have a material impact on the Company's consolidated results of operations, financial condition, or cash flows.

     In June 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. ASU 2011-05 requires entities to present net income and other comprehensive income in either a single continuous statement or in two separate, but consecutive, statements of net income and other comprehensive income. ASU 2011-05 is effective for fiscal years and interim periods beginning after December 15, 2011. The Company does not expect the adoption of ASU 2011-05 to have a material impact on the Company's consolidated results of operations, financial condition, or cash flows.

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Condensed Consolidated Statements Of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Condensed Consolidated Statements Of Comprehensive (Loss) Income [Abstract]
Net loss	$ (26,271)	$ (18,158)	$ (115,660)	$ (1,150)
Other comprehensive loss, net of tax:
Foreign currency translation losses	(1,157)	(5,386)	(2,264)	(1,215)
Unrealized (losses) gains on cash flow hedges		(1,243)		76
Unrealized losses on investments	(17)	(42)	(28)	(96)
Total other comprehensive loss, net of tax	(1,174)	(6,671)	(2,292)	(1,235)
Comprehensive loss	$ (27,445)	$ (24,829)	$ (117,952)	$ (2,385)

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Product Warranty

9 Months Ended

Dec. 31, 2011

Product Warranty [Abstract]

Product Warranty

7. Product Warranty

     The Company generally provides a one to three-year warranty on its products, commencing upon installation. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience.

Product warranty activity was as follows (in thousands):

		Three months ended						Nine months ended
		December 31,						December 31,
		2011			2010			2011			2010
Balance at beginning of period	$	7,055		$	7,374		$	7,907		$	6,431
Change in accruals for warranties during the period		(300	)		2,193			(774	)		6,533
Settlements during the period		(482	)		(1,119	)		(860	)		(4,516	)
Balance at end of period	$	6,273		$	8,448		$	6,273		$	8,448

     The Company includes warranty period expirations as changes in accruals for warranties in the table above. The Company includes the warranty accrual within accounts payable and accrued expenses in the unaudited condensed consolidated balance sheets.

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Inventory

9 Months Ended

Dec. 31, 2011

Inventory [Abstract]

Inventory

6. Inventory

The components of inventory are as follows (in thousands):

		December 31,		March 31,
		2011		2011
Raw materials	$	10,279	$	17,100
Work-in-process		4,844		2,432
Finished goods		15,683		3,915
Deferred program costs		3,215		2,381
Net inventory	$	34,021	$	25,828

     The Company recorded inventory write-downs of approximately $0.7 million and $2.2 million in the three and nine months ended December 31, 2011, respectively.

     Deferred program costs as of December 31, 2011 and March 31 2011 primarily represent costs incurred on D-VAR turnkey projects and programs accounted for under contract accounting where the Company needs to complete development programs before revenue and costs will be recognized.

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Fair Value Measurements (Tables)

9 Months Ended

12 Months Ended

Dec. 31, 2011

Mar. 31, 2011

Fair Value Measurements [Abstract]

Schedule Of Assets Carried At Fair Value

		Total		Quoted Prices in		Using Significant Other		Using Significant
		Carrying		Active Markets		Observable Inputs		Unobservable Inputs
		Value		(Level 1)		(Level 2)		(Level 3)
December 31, 2011:
Assets:
Cash equivalents	$	38,474	$	38,474	$	—	$	—
Short-term commercial paper		5,261		—		5,261		—

		Total		Quoted Prices in		Using Significant Other		Using Significant
		Carrying		Active Markets		Observable Inputs		Unobservable Inputs
		Value		(Level 1)		(Level 2)		(Level 3)
March 31, 2011:
Assets:
Cash equivalents	$	49,837	$	49,837	$	—	$	—
Short-term government-backed		76,371		—		76,371		—
securities
Short-term commercial paper		39,755		—		39,755		—
Derivatives		3,087		—		3,087		—

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Subsequent Events

9 Months Ended

Dec. 31, 2011

Subsequent Events [Abstract]

Subsequent Events

14. Subsequent Events

     The Company has performed an evaluation of subsequent events through the time of filing this Quarterly Report on Form 10-Q with the SEC, and has determined that there are no such events that are required to be disclosed.

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Commitments And Contingencies

9 Months Ended

Dec. 31, 2011

Commitments And Contingencies [Abstract]

Commitments And Contingencies

10. Commitments and Contingencies

Commitments

     The Company periodically enters into non-cancelable purchase contracts in order to ensure the availability of materials to support production of its products. Purchase commitments represent enforceable and legally binding agreements with suppliers to purchase goods or services. The Company periodically assesses the need to provide for impairment on these purchase contracts and records a loss on purchase commitments when required. As of December 31, 2011, the Company has $28.8 million of adverse purchase commitments in excess of its estimated future demand from certain of its customers in China, which the Company has recorded as a liability. The Company recorded adverse purchase commitment recoveries of $0.1 million and losses of less than $0.1 million during the three and nine months ended December 31, 2011, respectively. Adverse purchase commitment recoveries in the three months ended December 31, 2011 are the result of reductions in commitments to purchase materials due to renegotiations with certain suppliers and are recorded against cost of revenues.

Contingencies

     From time to time, the Company is involved in legal and administrative proceedings and claims of various types. The Company records a liability in its consolidated financial statements for these matters when a loss is known or considered probable and the amount can be reasonably estimated. The Company reviews these estimates each accounting period as additional information is known and adjusts the loss provision when appropriate. If a matter is both probable to result in liability and the amounts of loss can be reasonably estimated, the Company estimates and discloses the possible loss or range of loss. If the loss is not probable or cannot be reasonably estimated, a liability is not recorded in its consolidated financial statements.

     Between April 6, 2011 and May 12, 2011, seven putative securities class action complaints were filed against the Company and two of its officers in the United States District Court for the District of Massachusetts; one complaint additionally asserted claims against the underwriters who participated in our November 12, 2010 securities offering. On June 7, 2011, the United States District Court for the District of Massachusetts consolidated these actions under the caption Lenartz v. American Superconductor Corporation, et al., Docket No. 1:11-cv-10582-WGY. On August 31, 2011, Lead Plaintiff, the Plumbers and Pipefitters National Pension Fund, filed a consolidated amended complaint against the Company, its officers and directors, and the underwriters who participated in our November 12, 2010 securities offering, asserting claims under sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated under the Securities Exchange Act of 1934, as well as under sections 11, 12(a)(2) and 15 of the Securities Act of 1933. The complaint alleges that during the relevant class period, the Company and its officers omitted to state material facts and made materially false and misleading statements relating to, among other things, its projected and recognized revenues and earnings, as well as its relationship with Sinovel Wind Group Co., Ltd. that artificially inflated the value of the Company's stock price. The complaint further alleges that the Company's November 12, 2010 securities offering contained untrue statements of material facts and omitted to state material facts required to be stated therein. The plaintiffs seek unspecified damages, rescindment of the Company's November 12, 2010 securities offering, and an award of costs and expenses, including attorney's fees.

     Between May 4, 2011 and June 17, 2011, four putative shareholder derivative complaints were filed against the Company (as a nominal defendant) and certain of its directors in the United States District Court for the District of Massachusetts. On July 5, 2011, the District Court consolidated three of these actions, and that matter is now captioned In re American Superconductor Corporation Derivative Litigation, Docket No. 1:11-cv-10784-WGY. On June 1, 2011, the plaintiff in the fourth action, Marlborough Family Revocable Trust v. Yurek, et al., moved to voluntarily dismiss its complaint and refiled its complaint in Superior Court for the Commonwealth of Massachusetts, Middlesex County. On September 7, 2011, the Marlborough action and another putative shareholder derivative complaint filed in Superior Court for the Commonwealth of Massachusetts were consolidated. That consolidated matter is captioned Marlborough Family Revocable Trust v. Yurek, et al., Docket No. 11-1961. On January 12, 2012, an additional shareholder derivative complaint was filed in the Court of Chancery for the State of Delaware. That matter is captioned Krasnoff v. Budhraja, et al., Docket No. 7171. The allegations of the

derivative complaints mirror the allegations made in the putative class action complaints described above. The plaintiffs purport to assert claims against the director defendants for breach of fiduciary duty, abuse of control, gross mismanagement and corporate waste. The plaintiffs seek unspecified damages on behalf of the Company, as well as an award of costs and expenses, including attorney's fees.

     With respect to the above referenced litigation matters, an estimate of loss or range of loss cannot be made. There are numerous factors that make it difficult to meaningfully estimate possible loss or range of loss at this stage of these litigation matters, including that: the proceedings are in relatively early stages, there are significant factual and legal issues to be resolved, information obtained or rulings made during the lawsuits could affect the methodology for calculation of rescission and the related statutory interest rate. In addition, with respect to claims where damages are the requested relief, no amount of loss or damages has been specified. Therefore, the Company is unable at this time to estimate possible losses. The Company believes that these litigations are without merit, and it intends to defend these actions vigorously.

     On September 13, 2011, the Company commenced a series of legal actions in China against Sinovel Wind Group Co. Ltd. ("Sinovel"). The Company's Chinese subsidiary, Suzhou AMSC Superconductor Co. Ltd., filed a claim for arbitration with the Beijing Arbitration Commission in accordance with the terms of the Company's supply contracts with Sinovel. The case is captioned (2011) Jin Zhong An Zi No. 0693. On March 31, 2011, Sinovel refused to accept contracted shipments of 1.5 megawatt (MW) and 3 MW wind turbine core electrical components and spare parts that the Company was prepared to deliver. The Company alleges that these actions constitute material breaches of its contracts because Sinovel did not give it notice that it intended to delay deliveries as required under the contracts. Moreover, the Company alleges that Sinovel has refused to pay past due amounts for prior shipments of core electrical components and spare parts. The Company is seeking compensation for past product shipments (including interest) and monetary damages in the amount of approximately RMB 430 million ($67 million) due to Sinovel's breaches of its contracts. The Company is also seeking specific performance of our existing contracts as well as reimbursement of all costs and reasonable expenses with respect to the arbitration. The value of the undelivered components under the existing contracts, including the deliveries refused by Sinovel in March 2011, amounts to approximately RMB 4.6 billion ($720 million).

     On October 8, 2011, Sinovel filed with the Beijing Arbitration Commission an application under the caption (2011) Jing Zhong An Zi No. 0693, for a counterclaim against the Company for breach of the same contracts under which the Company filed its original arbitration claim. Sinovel claimed, among other things, that the goods supplied by the Company do not conform to the standards specified in the contracts and claimed damages in the amount of approximately RMB 370 million ($58 million). On October 17, 2011, Sinovel filed with the Beijing Arbitration Commission a request for change of counterclaim to increase its damage claim to approximately RMB 1 billion ($157 million). On December 22, 2011, Sinovel filed with the Beijing Arbitration Commission an additional request for change of counterclaim to increase its damages claim to approximately RMB 1.2 billion ($190 million). Deducting the RMB 430 million ($67 million) of past product shipments claimed by the Company, the net amount of damages claimed by Sinovel is approximately RMB 770 million ($120 million). The Company believes that Sinovel's claims are without merit and it intends to defend these actions vigorously. Since the proceedings in this matter are in relatively early stages, the Company cannot reasonably estimate possible losses or range of losses at this time.

     The Company also submitted a civil action application to the Beijing No. 1 Intermediate People's Court under the caption (2011) Yi Zhong Min Chu Zi No. 15524, against Sinovel for software copyright infringement on September 13, 2011. The application alleges Sinovel's unauthorized use of portions of the Company's wind turbine control software source code developed for Sinovel's 1.5MW wind turbines and the binary code, or upper layer, of the Company's software for the PM3000 power converters in 1.5MW wind turbines. In July 2011, a former employee of the Company's AMSC Windtec GmbH subsidiary was arrested in Austria on charges of economic espionage and fraudulent manipulation of data. In September 2011, the former employee pled guilty to the charges, and he is currently serving a prison sentence. As a result of the Company's internal investigation and a criminal investigation conducted by Austrian authorities, the Company believes that this former employee was contracted by Sinovel through an intermediary while employed by the Company and improperly obtained and transferred to Sinovel portions of its wind turbine control software source code developed for Sinovel's 1.5MW wind turbines. Moreover, the Company believes the former employee illegally used source code to develop for Sinovel a software modification to circumvent the encryption and remove technical protection measures on the PM3000 power converters in 1.5MW wind turbines in the field. The Company is seeking a cease and desist order with respect to the unauthorized copying, installation and use of its software, monetary damages of approximately RMB 38 million ($6 million) for our economic losses and reimbursement of all costs and reasonable expenses. The No. 1 Intermediate People's Court accepted the case, which was necessary in order for the case to proceed. In November 2011, Sinovel filed a motion to remove this case from the Beijing No. 1 Intermediate People's Court and transfer the matter to the Beijing Arbitration Commission. The Company is awaiting the

court's decision.

     The Company submitted a civil action application to the Beijing Higher People's Court against Sinovel and certain of its employees for trade secret infringement on September 13, 2011 under the caption (2011) Gao Min Chu Zi No. 4193. The application alleges the defendants' unauthorized use of portions of the Company's wind turbine control software source code developed for Sinovel's 1.5MW wind turbines as described above with respect to the Copyright Action. The Company is seeking monetary damages of RMB 2.9 billion ($453 million) for the trade secret infringement as well as reimbursement of all costs and reasonable expenses. The Beijing Higher People's Court accepted the case, which was necessary in order for the case to proceed. On December 22, 2011, the Beijing Higher People's Court transferred this case to the Beijing No. 1 Intermediate People's Court under the caption (2011) Gao Min Chu Zi No. 4193. The Company is currently awaiting notice from the Beijing No. 1 Intermediate People's Court regarding the evidence submission deadline and the first hearing date.

     On September 16, 2011, the Company filed a civil copyright infringement complaint in the Hainan Province No. 1 Intermediate People's Court against Dalian Guotong Electric Co. Ltd. ("Guotong"), a supplier of power converter products to Sinovel, and Huaneng Hainan Power, Inc. ("Huaneng"), a wind farm operator that has purchased Sinovel wind turbines containing Guotong power converter products. The case is captioned (2011) Hainan Yi Zhong Min Chu Zi No. 62. The application alleges that the Company's PM1000 converters in certain Sinovel wind turbines have been replaced by converters produced by Guotong. Because the Guotong converters are being used in wind turbines containing the Company's wind turbine control software, the Company believes that its copyrighted software is being infringed. The Company is seeking a cease and desist order with respect to the unauthorized use of its software, monetary damages of RMB 1.2 million ($0.2 million) for its economic losses (with respect to Guotong only) and reimbursement of all costs and reasonable expenses. The court has accepted the case, which was necessary in order for the case to proceed. In addition, upon the request of the defendant Huaneng, Sinovel has been added by the court to this case as a defendant and Huaneng has been released from this case. In December 2011, Sinovel filed a jurisdiction opposition motion requesting dismissal by the Hainan Province No. 1 Intermediate People's Court, saying the case should be governed by the Beijing Arbitration Commission. On February 3, 2012, the Company received the Civil Ruling from the court, which granted Sinovel's motion, and dismissed the entire case. The Company plans to appeal the court's ruling.

     Ghodawat Energy Pvt Ltd ("Ghodawat"), a company registered in India carrying on the business of wind power development, lodged a Request for Arbitration with the Secretariat of the ICC International Court of Arbitration on May 12, 2011 and named AMSC Windtec GmbH ("AMSC Windtec") as the Respondent. Under the Request for Arbitration, Ghodawat alleges that AMSC Windtec breached an agreement dated March 19, 2008 pursuant to which AMSC Windtec granted a license to Ghodawat to manufacture, use, sell, market, erect, commission and maintain certain wind turbines using its technical information and wind turbine design (the "License Agreement"). Under the Request for Arbitration, Ghodawat's claims in this arbitration amount to approximately €18 million ($24 million). AMSC Windtec filed an Answer to Request for Arbitration and Counterclaim ("Answer and Counterclaim"), in which AMSC Windtec denied Ghodawat's claims in their entirety. AMSC Windtec has also submitted counterclaims under the License Agreement against Ghodawat in the amount of approximately €6 million ($9 million). Ghodawat has filed a Reply to Answer to Request for Arbitration and Counterclaim in which it denies AMSC Windtec's counterclaims. The arbitration proceedings are currently ongoing. The Company has recorded a loss contingency based on its assessment of probable losses on this claim; however this amount is immaterial to its consolidated financial statements.

Other

     The Company enters into long-term construction contracts with customers that require the Company to obtain performance bonds. The Company is required to deposit an amount equivalent to some or all the face amount of the performance bonds into an escrow account until the termination of the bond. When the performance conditions are met, amounts deposited as collateral for the performance bonds are returned to the Company. In addition, the Company has various contractual arrangements in which minimum quantities of goods or services have been committed to be purchased on an annual basis.

     As of December 31, 2011, the Company had two performance bonds in support of customer contracts. The total value of the outstanding performance bonds was $0.4 million with various expiration dates through October 2012. In the event that the payment is made in accordance with the requirements of any of these performance bonds, the Company would record the payment as an offset to revenue.

     At December 31, 2011, the Company had $9.0 million of restricted cash included in current assets and $2.5 million of restricted cash included in long-term assets. These amounts included in restricted cash represent deposits to secure letters of credit for various supply contracts. These deposits are held in interest bearing accounts.

     The Company had unused, unsecured lines of credit consisting of €2.3 million (approximately $3.0 million) in Austria as of December 31, 2011. During the nine months ended December 31, 2011, the Company's unsecured credit line with the Bank of China expired and it repaid borrowings on lines of credit of $4.6 million. There were no borrowings outstanding as of December 31, 2011.

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Income Taxes

9 Months Ended

Dec. 31, 2011

Income Taxes [Abstract]

Income Taxes

8. Income Taxes

     The Company recorded income tax expense of less than $0.1 million and $1.2 million for the three and nine months ended December 31, 2011, respectively, and the Company recorded an income tax benefit of $2.5 million and income tax expense of $12.6 million for the three and nine months ended December 31, 2010, respectively. The Company has provided a valuation allowance against all net deferred tax assets as of December 31, 2011, as it is more likely than not that its net deferred tax assets are not currently realizable due to the net operating losses incurred by the Company since its inception in the U.S., its significant write-offs in the fiscal year ended March 31, 2011 and the losses that are forecasted in certain foreign jurisdictions in the future.

     During the nine months ended December 31, 2011, the Company recorded additional income tax expense of $0.8 million for uncertain tax positions related to its Austrian subsidiary.

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Restructuring And Impairments

9 Months Ended

Dec. 31, 2011

Restructuring And Impairments [Abstract]

Restructuring And Impairments

9. Restructuring and Impairments

Restructuring

The Company accounts for charges resulting from operational restructuring actions in accordance with ASC Topic 420,

Exit or Disposal Cost Obligations ("ASC 420") and ASC Topic 712, Compensation—Nonretirement Postemployment Benefits

("ASC 712"). In accounting for these obligations, the Company is required to make assumptions related to the amounts of employee severance, benefits, and related costs and the time period over which leased facilities will remain vacant, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation arises. These estimates are reviewed and revised as facts and circumstances dictate; changes in these estimates could have a material effect on the amount accrued on the consolidated balance sheet.

     The Company initiated restructuring activities in order to reorganize global operations, streamline various functions of the business, and reduce its global workforce to better reflect the demand for its products. From April 1, 2011 through the date of this filing, the Company has reduced its global workforce by approximately 50%, which is expected to generate annualized savings of more than $50 million annually. During the three and nine months ended December 31, 2011, the Company incurred costs associated with the workforce reduction consisting of severance pay, outplacement services, medical benefits, and other related benefits. As a result, for the three and nine months ending December 31, 2011, the Company recorded employee severance and benefit costs of $2.2 million and $5.4 million, respectively. These charges are expected to be paid through the fiscal year ending March 31, 2012.

The following table presents restructuring charges and cash payments (in thousands):

		Severance pay and			Facility
		benefits			exit costs			Total
Accrued restructuring balance at October 1, 2011	$	2,076		$	127		$	2,203
Charges to operations		2,181			-			2,181
Cash payments		(1,647	)		(16	)		(1,663	)
Accrued restructuring balance at December 31, 2011	$	2,610		$	111		$	2,721
Accrued restructuring balance at April 1, 2011	$	-		$	-		$	-
Charges to operations		5,437			127			5,564
Cash payments		(2,827	)		(16	)		(2,843	)
Accrued restructuring balance at December 31, 2011	$	2,610		$	111		$	2,721

     In addition, during the nine months ended December 31, 2011 the Company consolidated certain of its business operations in Europe to reduce overall facility costs. The consolidation plan entailed vacating approximately 8,937 square feet of occupied space in Klagenfurt, Austria and plans to vacate approximately 3,300 square feet of occupied space in Nuremburg, Germany. The Klagenfurt facility closure was accounted for in accordance with ASC 420, pursuant to which the Company recorded a liability equal to the fair value of the remaining lease payments as of the cease-use date. Fair value was determined based upon the discounted present value of remaining lease rentals (using a discount rate of 10.1%) for the space no longer occupied, considering future estimated potential sublease income. As a result, the Company recorded facility exit costs of $0.1 million related to the remaining lease commitment on the leased space. These charges are expected to be paid through fiscal 2012. As of December 31, 2011, the Company had not ceased using the Nuremburg facility and therefore recorded no liability for remaining lease payments. All restructuring charges discussed above are included within restructuring and impairments in the Company's unaudited condensed consolidated statements of operations. The Company includes accrued restructuring within accounts payable and accrued expenses in the unaudited condensed consolidated balance sheets.

Impairments

     The Company periodically evaluates its long-lived assets consisting principally of fixed assets and amortizable intangible assets for potential impairment. In accordance with the applicable accounting guidance for the treatment of long-lived assets, the Company reviews the carrying value of its long-lived assets or asset group that is held and used, including intangible assets subject to amortization, for impairment whenever events and circumstances indicate that the carrying value of the assets may not be recoverable. Under the held and used approach, the asset or asset group to be tested for impairment should represent the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets and liabilities. The Company evaluates its long-lived assets whenever events or circumstances suggest that the carrying amount of an asset or group of assets may not be recoverable from the estimated undiscounted future cash flows.

     In November 2011, the Company completed certain restructuring activities to reduce costs and to align its strategic priorities to capitalize on near and long-term opportunities in its Grid segment. As a result, the Company concluded that there were indicators of potential impairment of certain long-lived assets in its Grid segment and therefore conducted an assessment of the recoverability of these assets during the three months ended December 31, 2011 by comparing the carrying value of the assets to the pre-tax undiscounted cash flows estimated to be generated by those assets over their remaining book useful lives. Based on the calculation performed by management, the sum of the undiscounted cash flows forecasted to be generated by certain assets within its Grid segment were less than the carrying value of those assets. Therefore, there was an indication that certain of the Company's Grid assets were impaired and, as a result, the Company performed additional analysis. An evaluation of the level of impairment was made by comparing the implied fair value of those definite long-lived tangible and intangible assets of its Grid segment against their carrying values.

     The fair values of the impacted property and equipment were based on what the Company could reasonably expect to sell each asset from the perspective of a market participant. The determination of the fair value of its property and equipment includes estimates and judgments regarding the marketability and ultimate sales price of individual assets. The Company utilized market data and approximations from comparable analyses to arrive at the estimated fair values of the impacted property and equipment. The fair values of amortization intangible assets related to completed technology were determined

using the relief-from-royalty method over the estimated economic lives of those assets from the perspective of a market participant. During the three months ended December 31, 2011, the Company determined that certain of its Grid segment property, plant and equipment were impaired as their carrying value exceeded their fair value. Accordingly, the Company recorded an impairment charge of $1.7 million.

     In addition, the Company recorded impairment charges of $0.2 million and $1.1 million during the three and nine months ended December 31, 2011, respectively, primarily related to long-lived assets for which there is no remaining future economic benefit as a result of the consolidation of operations in Europe.

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Equity Investments

9 Months Ended

Dec. 31, 2011

Equity Investments [Abstract]

Equity Investments

11. Equity Investments

Investment in Tres Amigas

     On October 9, 2009, the Company made an investment in Tres Amigas LLC, a Delaware limited liability company ("Tres Amigas"), is focused on providing the first common interconnection of America's three power grids to help the country achieve its renewable energy goals and facilitate the smooth, reliable and efficient transfer of green power from region to region, for $1.8 million, consisting of $0.8 million in cash and $1.0 million in AMSC common stock. On January 6, 2011 and May 20, 2011, the Company increased its minority position in Tres Amigas by investing an additional $1.8 million in cash on each date. As of December 31, 2011, the Company holds a 34% ownership interest in Tres Amigas

     The Company has determined that Tres Amigas is a variable interest entity ("VIE") and that the Company is not the primary beneficiary of the VIE. Therefore, the Company has not consolidated Tres Amigas as of December 31, 2011. The investment is carried at the acquisition cost, plus the Company's equity in undistributed earnings or losses. The Company's maximum exposure to loss is limited to the Company's recorded investment in this VIE. The Company's investment in Tres Amigas is included in other assets on the consolidated balance sheet and the equity in undistributed losses of Tres Amigas is included in other income, net, on the consolidated statements of operations.

The net investment activity for the nine months ended December 31, 2011 is as follows (in thousands):

Balance at April 1, 2011	$	3,026
Purchase of minority investment		1,800
Minority interest in net losses		(741	)
Balance at December 31, 2011	$	4,085

Investment in Blade Dynamics Ltd.

     On August 12, 2010, the Company acquired (through its Austrian subsidiary), a minority ownership position in Blade Dynamics Ltd. ("Blade Dynamics"), a designer and manufacturer of advanced wind turbine blades based on proprietary materials and structural technologies, for $8.0 million in cash. The Company uses the equity method of accounting for this investment since it does not have a controlling ownership interest in the operating and financial policies of Blade Dynamics. As such, the investment is carried at the acquisition cost, plus the Company's equity in undistributed earnings or losses. The Company's investment is included in other assets on the unaudited condensed consolidated balance sheets and the minority interest in net losses of Blade Dynamics is included in other income, net, on the unaudited condensed consolidated statements of operations. As of December 31, 2011, the Company holds a 25% ownership interest in Blade Dynamics. The net investment activity for the nine months ended December 31, 2011 is as follows (in thousands):

Balance at April 1, 2011	$	7,903
Minority interest in net losses		(880	)
Net foreign exchange rate impact		(561	)
Balance at December 31, 2011	$	6,462

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Computation Of Net (Loss) Income Per Common Share (Schedule Of Earnings Per Share Calculation) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Computation Of Net (Loss) Income Per Common Share [Abstract]
Net loss	$ (26,271)	$ (18,158)	$ (115,660)	$ (1,150)
Weighted-average shares of common stock outstanding	51,459,000	48,731,000	51,120,000	46,667,000
Weighted-average shares subject to repurchase	(526,000)	(663,000)	(331,000)	(650,000)
Shares used in per-share calculation basic	50,933,000	48,068,000	50,789,000	46,017,000
Shares used in per-share calculation diluted	50,933,000	48,068,000	50,789,000	46,017,000
Net loss per share basic	$ (0.52)	$ (0.38)	$ (2.28)	$ (0.02)
Net loss per share diluted	$ (0.52)	$ (0.38)	$ (2.28)	$ (0.02)
Anti-dilutive shares excluded from calculation of diluted EPS	2,400,000	2,400,000	2,000,000	2,000,000

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Stock-Based Compensation (Tables)

9 Months Ended

Dec. 31, 2011

Stock-Based Compensation [Abstract]

Summary Of Stock-Based Compensation Expense By Financial Statement Line Item

		Three months ended					Nine months ended
		December 31,					December 31,
		2011		2010			2011		2010
Cost of revenues	$	138	$	(6	)	$	908	$	828
Research and development		623		237			1,948		1,396
Selling, general and administrative		1,357		2,017			4,841		7,849
Total	$	2,118	$	2,248		$	7,697	$	10,073

Schedule Of Weighted-Average Assumptions Used In The Black-Scholes Valuation Model For Stock Options Granted

	Three months ended				Nine months ended
	December 31,				December 31,
	2011		2010		2011		2010
Expected volatility	79.7	%	61.4	%	69.7	%	65.5	%
Risk-free interest rate	1.1	%	2.4	%	1.8	%	2.1	%
Expected life (years)	5.9		6.1		5.9		6.1
Dividend yield	None		None		None		None

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Product Warranty (Tables)

9 Months Ended

Dec. 31, 2011

Product Warranty [Abstract]

Schedule Of Product Warranty Activity

		Three months ended						Nine months ended
		December 31,						December 31,
		2011			2010			2011			2010
Balance at beginning of period	$	7,055		$	7,374		$	7,907		$	6,431
Change in accruals for warranties during the period		(300	)		2,193			(774	)		6,533
Settlements during the period		(482	)		(1,119	)		(860	)		(4,516	)
Balance at end of period	$	6,273		$	8,448		$	6,273		$	8,448

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Restructuring And Impairments (Schedule Of Restructuring Charges And Cash Payments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2011	Dec. 31, 2011
Restructuring and Related Cost [Line Items]
Accrued restructuring beginning balance	$ 2,203
Charges to operations	2,181	5,564
Cash payments	(1,663)	(2,843)
Accrued restructuring ending balance	2,721	2,721
Severance Pay And Benefits [Member]
Restructuring and Related Cost [Line Items]
Accrued restructuring beginning balance	2,076
Charges to operations	2,181	5,437
Cash payments	(1,647)	(2,827)
Accrued restructuring ending balance	2,610	2,610
Facility Exit Costs [Member]
Restructuring and Related Cost [Line Items]
Accrued restructuring beginning balance	127
Charges to operations		127
Cash payments	(16)	(16)
Accrued restructuring ending balance	$ 111	$ 111

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Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net loss	$ (115,660)	$ (1,150)
Adjustments to reconcile net loss to net cash used in operations:
Depreciation and amortization	10,875	7,990
Stock-based compensation expense	7,697	10,311
Provision for excess and obsolete inventory	2,150	2,667
Adverse purchase commitment losses (recoveries), net	73
Allowance for doubtful accounts		25
Write-off of advance payment	20,551
Write-off of prepaid value added taxes		550
Restructuring charges, net of payments	2,721
Impairment of long-lived assets	2,829
Deferred income taxes		(3,902)
Other non-cash items	2,227	2,025
Changes in operating asset and liability accounts:
Accounts receivable	(1,262)	40,431
Inventory	(10,419)	(42,934)
Prepaid expenses and other current assets	3,244	(16,973)
Accounts payable and accrued expenses	(63,554)	4,945
Deferred revenue	5,254	(20,027)
Net cash used in operating activities	(133,274)	(16,042)
Cash flows from investing activities:
Purchase of property, plant and equipment	(9,332)	(30,690)
Purchase of marketable securities		(71,763)
Proceeds from sales and maturities of marketable securities	110,667	47,462
Change in restricted cash	(6,036)	250
Purchase of intangible assets	(3,893)	(2,001)
Purchase of minority investments	(1,800)	(8,000)
Advance payment for previously planned acquisition	(20,551)
Change in other assets	(734)	(30)
Net cash provided by (used in) investing activities	68,321	(64,772)
Cash flows from financing activities:
Payments in lieu of issuance of common stock for payroll taxes	(271)
Proceeds from public equity offering, net		155,240
Proceeds from exercise of employee stock options and ESPP	150	7,350
Net cash (used in) provided by financing activities	(121)	162,590
Effect of exchange rate changes on cash and cash equivalents	(104)	(351)
Net (decrease) increase in cash and cash equivalents	(65,178)	81,427
Cash and cash equivalents at beginning of period	123,783	87,594
Cash and cash equivalents at end of period	58,605	169,021
Supplemental schedule of cash flow information:
Cash paid for income taxes, net of refunds	13,482	13,660
Non-cash contingent consideration in connection with acquisitions		10,003
Non-cash issuance of common stock	$ 586	$ 637

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Accounts Receivable

9 Months Ended

Dec. 31, 2011

Accounts Receivable [Abstract]

Accounts Receivable

5. Accounts Receivable

Accounts receivable consisted of the following (in thousands):

		December 31,			March 31,
		2011			2011
Accounts receivable (billed)	$	11,708		$	10,938
Accounts receivable (unbilled)		3,308			5,004
Less: Allowance for doubtful accounts		(252	)		(683	)
Accounts receivable, net	$	14,764		$	15,259

     The Company records bank acceptance notes receivable arranged with third-party financial institutions by certain customers to settle their transactions within prepaid expenses and other current assets. These notes are typically non-interest bearing and generally have maturities of less than six months. The carrying amount of notes receivable approximate their fair values. The Company had notes receivable outstanding of $3.2 million and $2.0 million as of December 31, 2011 and March 31, 2011, respectively.

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Restructuring And Impairments (Tables)

9 Months Ended

Dec. 31, 2011

Restructuring And Impairments [Abstract]

Schedule Of Restructuring Charges And Cash Payments

		Severance pay and			Facility
		benefits			exit costs			Total
Accrued restructuring balance at October 1, 2011	$	2,076		$	127		$	2,203
Charges to operations		2,181			-			2,181
Cash payments		(1,647	)		(16	)		(1,663	)
Accrued restructuring balance at December 31, 2011	$	2,610		$	111		$	2,721
Accrued restructuring balance at April 1, 2011	$	-		$	-		$	-
Charges to operations		5,437			127			5,564
Cash payments		(2,827	)		(16	)		(2,843	)
Accrued restructuring balance at December 31, 2011	$	2,610		$	111		$	2,721

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Product Warranty (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Product Warranty [Line Items]
Balance at beginning of period	$ 7,055	$ 7,374	$ 7,907	$ 6,431
Change in accruals for warranties during the period	(300)	2,193	(774)	6,533
Settlements during the period	(482)	(1,119)	(860)	(4,516)
Balance at end of period	$ 6,273	$ 8,448	$ 6,273	$ 8,448
Minimum [Member]
Product Warranty [Line Items]
Warranty period, in years			1
Maximum [Member]
Product Warranty [Line Items]
Warranty period, in years			3

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Recent Accounting Pronouncements (Policy)

9 Months Ended

Dec. 31, 2011

Recent Accounting Pronouncements [Abstract]

Business Combinations

     In December 2010, the FASB issued Accounting Standards Update (ASU) No. 2010-29, Business Combinations (Topic 805), Disclosure of Supplementary Pro forma Information for Business Combinations a consensus of the FASB Emerging Issues Task Force (ASC 2010-29). This amendment clarifies the periods for which pro forma financial information is presented. The disclosures include pro forma revenue and earnings of the combined entity for the current reporting period as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. If comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the comparable prior reporting period should be reported as though the acquisition date for all business combinations that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. ASU 2010-29 is effective prospectively for business combinations that occur on or after the beginning of the first annual reporting period beginning after December 15, 2010. The adoption of ASU 2010-29 did not have a material impact on the Company's consolidated results of operations, financial condition, or cash flows.

Comprehensive Income

     In June 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. ASU 2011-05 requires entities to present net income and other comprehensive income in either a single continuous statement or in two separate, but consecutive, statements of net income and other comprehensive income. ASU 2011-05 is effective for fiscal years and interim periods beginning after December 15, 2011. The Company does not expect the adoption of ASU 2011-05 to have a material impact on the Company's consolidated results of operations, financial condition, or cash flows.