Natural gas-fired addition enters service

NV Energy dedicated the 484 MW combined-cycle addition at its 144 MW Harry Allen Generating Station near Las Vegas.

Construction began in November 2007. The addition consists of two combustion turbine generators and two heat recovery steam generators. The unit uses a dry-cooling system that allows it to produce electricity using 6 percent of the water required by similar facilities and other technology that recycles 75 percent of the water used.

Principal contractors for the project were Shaw Group, for engineering procurement and construction services; General Electric, for combustion and steam turbine equipment; and Vogt for the heat recovery steam generator.

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