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Calpine Named 2008 WateReuse Customer of the Year

Recognized for its innovative applications for reclaimed water, Calpine Corporation has been named the 2008 WateReuse Customer of the Year by the WateReuse Association. The award was presented today at the international non-profit association's 23rd Annual WateReuse Symposium in Dallas, Texas.

Calpine received the award based on its unique public-private partnership with the city of Santa Rosa to construct the largest recycled water to renewable energy project in the world at the company's Geysers facilities in Northern California. The $250 million Santa Rosa Geysers Project, commissioned in 2004, converts recycled water into steam to produce up to 150 megawatts (MW) of clean, reliable geothermal power for the California power grid. The project also helps keep waterways cleaner and eliminates fossil fuel emissions.

"Calpine is dedicated to helping preserve and protect our environment and using recycled water to generate clean, renewable energy is one way we can do that," said Dennis Gilles, Calpine's Senior Vice President - Western Region and Geothermal. "We are one of the largest users of recycled water in the world and are so convinced of the value of water reuse that we have invested almost $100 million in facilities to ensure this sustainable resource will be used for many years to come."

Calpine has a 30-year contract with Santa Rosa to receive up to 7 billion gallons of recycled water per year. Recycled water is pumped to The Geysers geothermal field located 41 miles from, and at an elevation 3,300 feet higher than, the city's wastewater treatment facility. Calpine injects the recycled water underground into the steam reservoir where it is heated to make new steam to generate clean, renewable geothermal energy.

"The WateReuse Customer of the Year award recognizes customers who have advanced the acceptance of water reuse through innovative or unique applications of recycled or reclaimed water," said WateReuse Association Executive Director G. Wade Miller. "Calpine Corporation has demonstrated continued dedication to the water reuse community, and we gratefully acknowledge the contributions the company has made."

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