At the end of 2016, 195 utility-scale geothermal generating units totaling 3.7 GW were in operation
Beyond the main sources of electricity generation capacity in the United States that have recently been discussed in a series of Today in Energy articles, additional amounts of utility-scale capacity are provided by technologies such as hydroelectric pumped storage, batteries, flywheels, and renewable fuels other than hydro, wind, and solar. These sources collectively accounted for 4% of the electricity generating capacity in the United States in 2016.
At the end of 2016, 195 utility-scale geothermal generating units totaling 3.7 GW were in operation. The largest group of geothermal generating units, a complex located in Northern California called the Geysers, has 943 megawatts (MW) of generating capacity, more than a quarter of the national total.
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