Satcon Named the World’s Second Largest Provider of Utility-Scale Inverters by IMS Research

Satcon Technology Corporation(R) (NASDAQ CM: SATC), a leading provider of utility-scale power conversion solutions for

the renewable energy market, announced today that it has achieved the second largest share in the worldwide utility-scale inverter

market for 2010.

Based upon the results from IMS Research’s recently released World Market for Photovoltaic Inverters 2011 (4th Edition) and

its Q1 2011 PV Inverter Quarterly Market Tracker, Satcon has obtained commanding positions within the North American and

Asian markets, and has successfully achieved significant growth in Europe.

“Satcon demonstrated significant worldwide gains in 2010,” said Ash Sharma, Research Director at IMS Research. “It was one of

the biggest market share gainers of all non-European inverter suppliers in the year and shows a significant increase in worldwide

market share as well as year over year growth.”

Satcon’s successful growth continues into 2011, as reflected in its May 23, 2011 announcement of Satcon obtaining the number

one market share position in total megawatts shipped for Q1 2011 in the Americas, and the number two market share position in

China and the rest of Asia.

“2010 was a marquee year for Satcon in which we achieved record bookings of over 1.1 gigawatts of our utility-ready solar

inverter solutions,” said Steve Rhoades, Satcon’s President and Chief Executive Officer. “Our focus over the past three years has

been to build a world class global organization. Our continued dedication to product innovation and operational excellence,

combined with the industry’s most widely deployed and proven utility scale solar technologies, is now the foundation for our

successful growth in all three of the world’s major solar markets.”

Satcon Technology Corporation(R) is the leading provider of utility-scale power conversion solutions for the renewable energy

market, enabling the industry’s most advanced reliable and proven clean energy alternatives. For over 26 years, Satcon has

designed and delivered the next generation of efficient energy systems for solar photovoltaic, stationary fuel cells, and energy

storage systems. To learn more about Satcon, please visit www.Satcon.com.

IMS Research is a leading independent supplier of market research and consultancy to the global electronics industry, offering

syndicated market studies, bespoke research and consultancy services. The company is one of the most respected commentators

in the renewable energy field, with a particular expertise in the PV (solar) market. We currently have seven analysts and a 10-

person research team dedicated to researching the PV market. We now offer over 25 reports and cover every aspect of the

supply chain from polysilicon supply to PV modules, inverters and PV system integrators. PV@imsresearch.com;

www.pvmarketresearch.com

Statements made in this press release that are not historical facts or which apply prospectively are forward-looking statements that

involve risks and uncertainties. These forward-looking statements are identified by the use of terms and phrases such as “will,”

“intends,” “believes,” “expects,” “plans,” “anticipates” and similar expressions. Investors should not rely on forward looking

statements because they are subject to a variety of risks and uncertainties and other factors that could cause actual results to differ

materially from the company’s expectation. Additional information concerning risk factors is contained from time to time in the

company’s SEC filings, including its Annual Report on Form 10-K and other periodic reports filed with the SEC. Forwardlooking statements contained in this press release speak only as of the date of this release. Subsequent events or circumstances occurring after such date may render these statements incomplete or out of date. The company expressly disclaims any obligation to update the information contained in this release.

SOURCE: Satcon Technology Corporation

Satcon Technology Corporation

Michael Levi, 949-201-5955

Senior Director of Worldwide Marketing

michael.levi@satcon.com

or

Leah Gibson, 617-897-2400

Investor Relations

Leah.Gibson@satcon.com