Tessera Solar and Stirling Energy Systems Unveil World's First Commercial-Scale SunCatcher Plant, Maricopa Solar, with Partner SRP

Only four months after breaking ground, Tessera Solar and Stirling Energy Systems (SES) showcased the highly anticipated Maricopa Solar power plant last month at a special event for key partners, stakeholders and media.

Maricopa Solar is the first commercial project for the SunCatcher™ concentrating solar power (CSP) technology designed and manufactured by SES. Joining in the celebration were Arizona Governor Jan Brewer and officials from SRP, local and state government, the U.S. Department of Energy, Sandia National Laboratories, utility customers, suppliers, and NTR plc--Tessera Solar and SES's majority shareholder.

"The opening of Maricopa Solar is a significant milestone for our companies and for the solar industry," said Bob Lukefahr, Tessera Solar North America CEO. "Maricopa Solar represents a genuine breakthrough in solar energy and demonstrates that Dish Stirling solar power is now ready for commercial deployment in the US and around the world. With this milestone now behind us we look forward to breaking ground on our initial 1,500 megawatts of projects in California and Texas later this year."

Maricopa Solar is comprised of 60 SunCatcher dishes and will provide 1.5 megawatts of renewable energy to SRP customers in Greater Phoenix, Arizona.

"Through partnerships such as Maricopa Solar, we will be able to learn a great deal about this emerging solar technology while helping to create green jobs, economic development opportunities and clean energy for SRP and our customers, said SRP Associate General Manager Richard Hayslip. "The Maricopa Solar project is just one example of SRP's commitment to building a renewable energy portfolio that is beneficial to our environment and customers."

The innovative and highly-efficient SES SunCatcher is a 25-kilowatt solar power system which uses a 38-foot, mirrored parabolic dish combined with an automatic tracking system to collect and focus the sun's energy onto a Stirling engine to convert the solar thermal energy into grid-quality electricity.

"The SunCatcher represents the next generation of grid-quality solar power technology providing clean, reliable and cost-effective solar power to address global climate change and reduce our planet's carbon emissions," said Steve Cowman, Stirling Energy Systems CEO.

SunCatcher has a number of advantages, including the highest solar-to-grid electric efficiency, zero water use for power production, a modular and scalable design, low capital cost, and minimal land disturbance. SunCatcher was designed and developed in the U.S., through a public-private partnership with the U.S. Department of Energy. The SunCatchers unveiled at Maricopa Solar were manufactured and assembled in North America, mostly in Michigan by automotive suppliers.

High-volume manufacturing of the SunCatcher begins in Summer 2010 and Tessera Solar breaks ground on utility-scale projects late this year in California and Texas.

Imperial Valley is a 750 MW project with the first 300 MW contracted under a power purchase agreement with San Diego Gas & Electric near El Centro, California; Calico is a 850 MW project with Southern California Edison near Barstow, California; and Western Ranch is a 27 MW project with CPS Energy in West Texas.

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