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Sargent & Lundy to install gas-fired units for Xcel's coal-fired ones

27 October 2006 -- Xcel Energy Services has selected Sargent & Lundy LLC to perform the detailed design engineering for the Riverside Repowering Project. The station, located in Minneapolis, Minnesota, US, is part of Xcel Energy's Metropolitan Emission Reduction Program (MERP), a voluntary plan to significantly reduce power plant air emissions in the Twin Cities while increasing electric generating capacity.

The project will replace the existing coal-fired units 7 and 8 with a natural gas combined-cycle arrangement of two combustion turbines and corresponding heat recovery steam generators (HRSGs). The final 2x2x1 configuration will increase the total generating capacity of the plant by approximately 80 MW, generating 480 MW (nominal) upon completion.

The design for the repowered units will include measures to enable the existing units to continue operating through construction and facilitate a rapid changeover to the new installation in order to minimize plant offline time. The first unit is scheduled to be retired in mid-September 2008 with first fire of the repowered station scheduled for January 1, 2009 and an in-service date of May 2009.




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