Calpine may get hot, but it also knows how to blow off some steam. In 2015 the independent power producer and marketer controlled 27,000 MW of generating capacity (and 760 MW under construction) through interests in 84 primarily natural gas-fired power plants in 19 US states and Canada. This fleet also includes 14 geothermal power plants in California. Calpine, the leading geothermal power producer in North America, owns 760 MW of capacity at the largest geothermal facility in the US (the Geysers in northern California), and which accounts for 40% of the country's geothermal energy. The company has major presence in the wholesale power markets in California, the Mid-Atlantic, and Texas.