Electrical Design and Operating Experience with the Pinnacles Waste Heat Gas Turbine Plant

The installation of a dual-energy plant to provide exhaust heat to a chemical plant and electricity for the plant and other area loads in a severe high-temperature, dust-laden environment is described in this paper. Of interest are the electrical and mechanical features and operating experience to date for the 15-megawatt nominal-rated gas turbine generator set which was derated due to high ambient desert temperature conditions. Increased insulation levels were specified for all outdoor electrical equipment.