Siemens Power Generation's Wheelabrator Division Chosen to Supply Emissions Control System for Reliant Energy's Keystone Generating Station


Pittsburgh, PA, November 13, 2006 - Wheelabrator Air Pollution Control Inc., a division of Siemens Power Generation, will design, supply and install two (2) wet flue gas desulfurization (FGD) systems for Reliant Energy, Inc. at the Keystone Generating Station near Indiana, Pennsylvania. Reliant jointly owns the Keystone station with six other power companies and operates the facility on behalf of the owners.

The Keystone station consists of two coal-fired, steam-electric generation boilers. Unit 1 started commercial operation in 1967, and Unit 2 went on line a year later. Installation of the new emission control systems is part of the Keystone owners' strategy for maximizing the long-term value of its power generation assets.

The state-of-the-art environmental upgrade will utilize Wheelabrator's proven wet FGD technology to control emissions from both 850-megawatt boilers. The systems are expected to begin commercial operation in 2009 and will remove 98 percent of sulfur dioxide (SO2) from the station's flue gas and reduce the emission of mercury.

"We are extremely proud to have been chosen to partner with Reliant Energy on this significant contract, which represents a technologically advanced solution to providing clean, economical power to its customers," said Wheelabrator President Antonio DoVale, "and which demonstrates confidence in Wheelabrator's technologies, expertise and experience."

Reliant Energy, Inc. (NYSE: RRI) based in Houston, Texas, provides electricity and energy services to retail and wholesale customers in the United States. In Texas, the company provides service to approximately 1.9 million retail electricity customers, including residential and small business customers and commercial, industrial, governmental and institutional customers. Reliant also serves commercial, industrial, governmental and institutional customers in the PJM (Pennsylvania, New Jersey and Maryland) market.

The company is one of the largest independent power producers in the nation with approximately 16,000 megawatts of power generation capacity in operation across the United States. These strategically located generating assets utilize natural gas, fuel oil and coal. For more information, visit http://reliant.com/corporate.

The Power Generation Group (PG), a unit of Siemens AG, is one of the premier entities in the international power generation sector. In fiscal 2006 (which ended September 30), Siemens PG posted sales amounting to more than EUR10 billion and received new orders totaling EUR12.5 billion. Group profit amounted to EUR782 million. On September 30, 2006, PG had a work force of approximately 36,400 worldwide. Further information at: siemens.com/powergeneration. Siemens Power Generation acquired Wheelabrator Air Pollution Control Inc. as a wholly owned subsidiary in October 2005. Wheelabrator is a world leader in the design and supply of air pollution control equipment, turnkey systems and services.

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