BrightSource Energy’s New Project

BrightSource Energy / Luz II Dedicate Solar Energy Development Center
Operational solar field, first of its kind in Israel; a landmark for new technology

(Jerusalem, Israel) June 11, 2008 – BrightSource Energy, Inc. and subsidiary Luz II, Ltd.,
developers of large scale solar thermal power plants, will dedicate their Solar Energy
Development Center (SEDC) in the Negev’s Rotem Industrial Park, Israel tomorrow, Thursday,
June 12. The dedication of the SEDC is a major milestone in the development of solar energy
worldwide. The Center is an operational solar field that will provide the company with the ability
to test equipment, materials and procedures as well as construction and operating methods.

“The completion of this project is a tribute to tens of thousands of hours of hard work and
dedication from our people – the brightest and most dedicated team of experts in the business,”
said Arnold Goldman, chairman and founder of BrightSource Energy and Luz II. “It is a
testament to the power of the vision shared by everyone who works for this company as well as
our partners and suppliers.”

This solar field is a scaled cross-section of a typical commercial plant and includes more than
1,600 full-size glass mirrors (heliostats) and a 60 meter tall tower topped by a solar boiler. The
power tower and surrounding heliostats concentrate the sun’s energy onto the boiler, heating
the water inside to 550° C, or over 1000° F. In a commercial plant, the utility-grade superheated
steam will be piped from the boiler to a standard turbine where electricity will be generated, all
at a much higher operating efficiency and lower cost than other solar power plants. From here, transmission lines would carry the power to homes and businesses. In order to conserve water, BrightSource uses air cooling to convert the steam back into water. The water is then returned to the boiler in a closed loop.

BrightSource Energy
Full Story and PDF: http://www.brightsourceenergy.com/