PSEG Awards Emission Control Contract to Siemens Power Generation's Wheelabrator Division

Pittsburgh, Pennsylvania, June 2, 2006 - Wheelabrator Air Pollution Control Inc., a division of Siemens Power Generation, has been awarded a contract by PSEG Power Connecticut LLC to provide a multi-pollutant control system for Bridgeport Harbor Generating Station, Unit 3, in Bridgeport, Connecticut. The contract has been assumed by Shaw Stone & Webster, a unit of The Shaw Group Inc., who has the engineering, procurement and construction contract for the Mercury Control Project at Bridgeport Harbor.

Wheelabrator will design and supply a JET VIP(TM) fabric filter system to control particulate emissions and a powder activated carbon (PAC) injection system to control mercury (Hg) emissions from a 400-megawatt coal-fired boiler.

JET VIP(TM) Intermediate Pulse Collectors are designed for larger gas volumes. Double diaphragm valves deliver a low pressure pulse through a "tuned" manifold delivery system for gentle cleaning while providing low emissions. The PAC system, which controls Hg emissions, is compatible with virtually all particulate control systems, but is most effective upstream of a fabric filter to provide total emissions control.

Under the terms of the contract, Wheelabrator will deliver the system to Bridgeport Harbor in December 2006 for erection. It is scheduled to start up in December 2007.

The Shaw Group Inc. (NYSE:SGR) is a leading global provider of technology, engineering, procurement, construction, maintenance, fabrication, manufacturing, consulting, remediation, and facilities management services for government and private sector clients in the energy, chemical, environmental, infrastructure and emergency response markets. Headquartered in Baton Rouge, Louisiana, with over $3 billion in annual revenue, Shaw employs approximately 20,000 people at its offices and operations in North America, South America, Europe, the Middle East and the Asia-Pacific region. The company has twice been named to Fortune magazine's annual list of "America's Most Admired Companies". For further information, please visit Shaw's website at

PSEG (NYSE: PEG) is a diversified energy company. It's principal subsidiaries include PSEG Energy Holdings, which invests in electric and gas distribution systems and generation companies in the USA and around the world; PSEG Power which owns and operates more than 16,000 MW in the USA; and PSE&G, a gas and electric distribution company in New Jersey, USA. PSEG has announced its intention, following regulatory approvals, to merge with Exelon Corporation of Chicago, Illinois. Further information at

Siemens Power Generation Group (PG), a unit of Siemens AG, is one of the premier entities in the international power generation sector. In fiscal 2005 (which ended September 30), Siemens PG posted sales amounting to approximately EUR8.1 billion and received new orders totaling EUR10.9 billion. Group profit amounted to EUR951 million. On September 30, 2005, PG had a work force of approximately 33,500 worldwide. Further information at 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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