ATLANTA, GEORGIA - September 10, 2007 :- The world's first installation of GE Energy's 60-hertz H System* gas turbine, the Inland Empire Energy Center in southern California, remains on target for a full commercial startup in the summer of 2008.

In a recent project milestone, back feed power was provided to one of the two GE Frame 107H gas turbines at the site, clearing the way for startup and commissioning of the power plant auxiliary systems.

A GE-designed demineralization water system is currently being commissioned. This system will supply demineralized water purified from recycled water feedstock to provide all needed steam plant makeup water for the entire site operation.

 The first 107H gas turbine at the site (unit #1) is expected to achieve first firing by the end of this year, with unit #2 first firing expected in early 2008. Unit #1 will be heavily instrumented and will undergo extensive validation testing throughout the first half of 2008, to validate the 107H combined-cycle system.

An innovative, closed-loop steam cooling system and advanced coating materials are key features in the H System gas turbine's ability to achieve the higher firing temperatures required for increased efficiency, which also translates into improved environmental performance. For every unit of electricity generated, the H System gas turbine uses less fuel and produces fewer greenhouse gases and other emissions when compared to other large gas turbine combined-cycle systems. The H System gas turbine is a key element of GE ecomagination, a corporate-wide initiative to develop and market technologies that will help customers meet pressing environmental challenges.

Operating on natural gas, the two GE 107H combined-cycle systems at Inland Empire will produce a total of 775 megawatts, or enough power to supply nearly 600,000 households. Located in Romoland, near Riverside, the plant will come on line in the summer of 2008, in time to help offset state-forecasted electricity shortfalls in southern California.

"We're extremely pleased with the progress to date on the Inland Empire project," said John Reinker, general manager of gas turbine and combined-cycle products for GE Energy. "Southern California, with its strong focus on finding more efficient methods to meet its growing power requirements, is an ideal place to showcase our most advanced 60-hertz combined-cycle technology."

GE is financing and will own the Inland Empire Energy Center. Calpine Power Services is managing plant construction and Calpine Energy Services will market the plant's output and manage fuel requirements under a long-term marketing arrangement with GE. Following an extended period of GE ownership, Calpine expects to purchase the plant and become its sole owner and operator, with GE continuing to provide plant maintenance services under a contractual agreement with Calpine.

The 50-hertz version of GE's H System gas turbine made its global commercial debut in 2003 at the Baglan Bay Power Station in South Wales, where it recently surpassed 24,000 hours of service. The world's second installation of 109H technology is Tokyo Electric Power Company's Futtsu Thermal Power Station in Japan, where the first of three 109H combined-cycle systems will enter service in 2008.

About GE Energy

GE Energy (www.ge.com/energy) is one of the world's leading suppliers of power generation and energy delivery technologies, with 2006 revenue of $19 billion. Based in Atlanta, Georgia, GE Energy works in all areas of the energy industry including coal, oil, natural gas and nuclear energy; renewable resources such as water, wind, solar and biogas; and other alternative fuels. Numerous GE Energy products are certified under ecomagination, GE's corporate-wide initiative to aggressively bring to market new technologies that will help customers meet pressing environmental challenges.

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