Clean, Energy-Efficient Power Generation Calpine uses two types of fuel to produce electricity: natural gas and geothermal steam .
(Energy-Efficient Power Generation Calpine; uses; two types of fuel; to produce electricity) Context(Energy - Efficient Power Generation Calpine uses,List([7, 53))):(Energy-Efficient Power Generation Calpine; uses two types of fuel to produce; electricity)
Energy - Efficient Power Generation Calpine uses,List([7, 53))
Energy-Efficient Power Generation Calpine Energy-Efficient Power Generation Calpine
uses uses two types of fuel to produce
two types of fuel to produce electricity
electricity