Satcon Announces Three Year, 330 MW Agreement with Ecostream

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 that it has signed a master supply agreement with Ecostream, one of the
world`s leading sustainable energy system providers. Under this agreement,
Satcon will provide Ecostream, part of sustainable energy company Econcern, with
330 megawatts of its industry leading renewable energy conversion solutions,
including the PowerGate Plus line of solar PV inverters.

Ecostream`s commitment to developing sustainable energy systems with a long-term
high return on investment will be supported by Satcon`s highly optimized
PowerGate Plus solar PV inverters, which boost system power production and
maximize the overall profitability of commercial and utility-scale solar PV
systems. Satcon offers the industry`s most advanced renewable energy conversion
platform and has delivered thousands of commercial and utility installations -
cumulating millions of hours of highly reliable grid-connected power delivery.

"In order to generate the greatest long-term value and return on investment for
our customers, we must deliver the highest quality turn-key systems, built with
industry leading technology," said Steven Pleging, managing director of
Ecostream. "Our partnership with Satcon will provide us with solutions that will
increase total system performance through a combination of advanced
capabilities, industry leading efficiency, and field tested reliability."

With 11 power ratings ranging from 30 kW to 1 MW (UL and CE certified), Satcon
offers the most field-tested and proven utility ready power conditioning systems
in the industry. Engineered from the ground up to meet the demands of
large-scale installations, Satcon PV inverters feature an outdoor-rated
enclosure, advanced monitoring and control capabilities, and Edge, Satcon`s
next-generation MPPT solution.

"We believe strongly in Ecostream`s mission of `a sustainable energy supply for
everyone,`" said Steve Rhoades, Satcon`s President and Chief Executive Officer.
"Ecostream is a true innovator in the advancement of reliable and renewable
energy worldwide. Satcon is honored to be chosen as a key partner for their
renewable energy projects around the world."

About Satcon

Satcon Technology Corporation is a leading provider of utility scale distributed
power solutions for the renewable energy market, enabling the industry`s most
advanced reliable and proven clean energy alternatives. For over 23 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 Ecostream (www.ecostream.com)

Ecostream is one of the leading suppliers of customised, ready-to-use solar
power systems that secure high financial returns on a long term basis. With many
years of experience in the use of renewable energy, Ecostream offers high
quality renewable energy production and energy saving solutions for investors,
businesses and private home owners - worldwide. Systems range from
do-it-yourself packages to customized all-in-one concepts and large-scale
projects. Ecostream one of the five operating companies of Econcern.

About Econcern(www.econcern.com)

Econcern`s mission is `a sustainable energy supply for everyone`. Econcern
consists of operating companies Ecofys, Evelop, Ecostream, Ecoventures and
OneCarbon. Together they deliver unique projects, innovative products and
services for a sustainable energy supply. Econcern, which employs over 1,200
professionals in more than 20 countries across the world, was ranked No. 234 in
Business Week`s top 500 listing of high-growth companies in Europe and has won
the `European Business of the Year Award 2008.

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.

Satcon
Alida Bangs, 510-226-3812
Media Relations
alida.bangs@satcon.com
or
Satcon
Leah Gibson, 617-897-2400
Investor Relations
leah.gibson@satcon.com

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