NV Energy has added an additional 484MW combined-cycle capacity to the existing 144MW Harry Allen Generating Station in Nevada, US.

The new facility is located 25 miles north of Las Vegas and is capable of generating electricity sufficient to power 375,000 homes.

The new addition consists of two combustion turbine generators that are combined with two heat recovery steam generators.

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

NV Energy president and chief executive officer Michael Yackira said the Harry Allen Generating Station addition marks the completion of a building initiative that the company began in 2006, to increase Nevada’s energy independence.