Satcon to Power North Americas Largest Single Rooftop Solar Array

American Capital Energy Chooses Satcon PowerGate® Inverters for 2.36 Megawatt Atlantic City Convention Center Solar Photovoltaic Power System

BOSTON--(BUSINESS WIRE)--Satcon Technology Corporation (NASDAQ CM: SATC), a leading provider of utility scale distributed power solutions for the renewable energy market, announced today a 2.36 megawatt award from American Capital Energy of North Chelmsford, Massachusetts for the Atlantic City Convention & Visitors Authority (ACCVA).

“The ACCVA project demonstrates the increasing demand for our photovoltaic inverters to be used in larger, utility scale installations in North America”

The solar project, which will use 13,321 rooftop mounted panels on top of the Atlantic City Convention Center (ACCC), will be developed through a 20-year Power Purchase Agreement (PPA) with Pepco Energy Services, a subsidiary of Pepco Holdings, Inc. The installed system, which will use Satcons 500kW PowerGate® high efficiency inverters, will be the largest single roof-mounted solar array in the United States, and is projected to provide the ACCC with energy savings of $4.4 million over the 20 years.

It is critical that all components selected for our Convention Center project meet two objectives, said Tom Hunton, President of American Capital Energy. First, given the scale of the project, all components must be proven technology of the highest quality to assure optimal generating capability. Second, the reliability of each component in the power generation chain is paramount to providing maximum long term system viability. Satcon brings the technology and proven solutions that will enable us to accomplish this.

The ACCVA project demonstrates the increasing demand for our photovoltaic inverters to be used in larger, utility scale installations in North America, said Steve Rhoades, Satcons President and Chief Executive Officer. This demand is further reflected in the upward trend in our backlog for these products. To date, our net backlog is approximately $49 million, with approximately 59% coming from PV and fuel cell inverter orders. At the end of the second quarter of 2008, our backlog was approximately $45 million, inline with our backlog for the past four quarters. This clearly shows the strength of our backlog and the growing demand for our photovoltaic and fuel cell solutions as utility scale installations become the global trend.

The ACCVA is leading the way for the U.S. alternative energy market, continued Rhoades. Satcon is excited to be working closely with the ACCVA and American Capital Energy to deliver reliable and efficient energy, and enable them to achieve and exceed their financial goals.

Under the PPA, Pepco will build, operate and maintain the solar plant, while American Capital Energy will function as the general contractor for the project, which relies on Satcon PowerGate® inverters to convert the power from DC to AC and connect the ACCC to the power grid. The inverters will boost energy harvested by sunlight from the rooftop PV panels and provide ACCC with clean, renewable power.

Construction of the array began during the month of June and is anticipated to be complete by December 31, 2008.

About Satcon

Satcon Technology Corporation (NASDAQ CM: SATC) is a leading provider of utility scale distributed power solutions for the renewable energy market, enabling the industrys most advanced, reliable and proven clean energy alternatives. For over 22 years, Satcon has designed and delivered the next generation of efficient energy systems for solar photovoltaic, stationary fuel cells, wind-turbines, and energy storage systems. To learn more about Satcon, please visit www.Satcon.com.

About American Capital Energy

American Capital Energy provides full-service solar energy project integration and installation for large commercial enterprises. The company is committed to furthering the utilization of solar energy by Americas most forward thinking companies by offering customized turnkey solar systems designed for long term performance and verifiable return on investment. For more information, visit www.americancapitalenergy.com.

About the Atlantic City Convention & Visitors Authority

The Atlantic City Convention & Visitors Authority serves as the destination's principal marketing arm, stimulating economic growth through convention, business and leisure tourism development. The Authority oversees the management of the Atlantic City Convention Center and Boardwalk Hall on behalf of its parent agency, the New Jersey Sports and Exposition Authority. The Authority is the first in New Jersey to achieve Destination Marketing Accreditation by the Destination Marketing Association International. The Authority is among an elite group of 47 accredited convention and visitor bureaus throughout the United States. For complete Atlantic City information, visit www.atlanticcitynj.com.

About Pepco Energy Services

Pepco Energy Services, Inc. is a wholly owned subsidiary of Pepco Holdings, Inc. (NYSE: POM) and a leader in providing commercial, institutional, government and industrial customers with competitive electricity and natural gas supply and energy efficiency services. Visit www.pepcoenergy.com for more information.

Safe Harbor

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. Forward-looking 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.

Contacts

Satcon Technology Corporation
Leah Gibson, 617-897-2400
leah.gibson@Satcon.com
or
American Capital Energy
Rich Schineller, 941-780-8100
rich@prmgt.com

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