2017 NAICS Definition

T = Canadian, Mexican, and United States industries are comparable.

221116 Geothermal Electric Power Generation

This U.S. industry comprises establishments primarily engaged in operating geothermal electric power generation facilities. These facilities use heat derived from the Earth to produce electric energy. The electric energy produced in these establishments is provided to electric power transmission systems or to electric power distribution systems.

2007 NAICS		2012 NAICS		2017 NAICS		Corresponding Index Entries
221119		221116		221116		Electric power generation, geothermal
221119		221116		221116		Geothermal electric power generation
221119		221116		221116		Power generation, geothermal