American Superconductor Corporation (NASDAQ: AMSC), a global power technologies company, announced today that it will release its fourth quarter and full fiscal year 2010 and first quarter fiscal year 2011 financial results, prior to the market opening on Friday, September 23, 2011. In conjunction with this announcement, AMSC management will participate in a conference call with investors beginning at 9:00 a.m. Eastern Time on September 23. On this call, management will discuss the company’s recent accomplishments, financial results and business outlook. Those who wish to listen to the live conference call webcast should visit the “ Investors” section of the company’s website at www.amsc.com/investors. The live call also can be accessed by dialing 719-457-2703 and using conference ID 8645945. A telephonic playback of the call will be available from 12:00 p.m. ET on September 23 through 12:00 p.m. ET on September 28. Please call 719-457-0820 and refer to conference ID 8645945 to access the playback. About American Superconductor (NASDAQ: AMSC) AMSC offers an array of proprietary technologies and solutions spanning the electric power infrastructure – from generation to delivery to end use. The company is a leader in renewable energy, providing proven, megawatt-scale wind turbine designs and electrical control systems. The company also offers a host of Smart Grid technologies for power grid operators that enhance the reliability, efficiency and capacity of the grid, and seamlessly integrate renewable energy sources into the power infrastructure. These include superconductor power cable systems, grid-level surge protectors and power electronics-based voltage stabilization systems. AMSC’s technologies are protected by a broad and deep intellectual property portfolio consisting of hundreds of patents and licenses worldwide. More information is available at www.amsc.com. American Superconductor and design, Revolutionizing the Way the World Uses Electricity, AMSC, Powered by AMSC, Amperium, D-VAR, dSVC, FaultBlocker, PowerModule, PowerPipelines, PQ-IVR, PQ-SVC, SeaTitan, SuperGEAR and Windtec and design are trademarks or registered trademarks of American Superconductor Corporation or its subsidiaries. All other brand names, product names or trademarks belong to their respective holders.