This U.S. industry comprises establishments primarily engaged in operating electric power generation facilities (except hydroelectric, fossil fuel, nuclear). These facilities convert other forms of energy, such as solar, wind, or tidal power, into electrical energy. The electric energy produced in these establishments is provided to electric power transmission systems or to electric power distribution systems.

Cross-References. Establishments primarily engaged in--

• Operating trash disposal incinerators that also generate electricity--are classified in U.S. Industry 562213, Solid Waste Combustors and Incinerators;
• Operating hydroelectric power generation facilities--are classified in U.S. Industry 221111, Hydroelectric Power Generation;
• Operating fossil fuel powered electric power generation facilities--are classified in U.S. Industry 221112, Fossil Fuel Electric Power Generation; and
• Operating nuclear electric power generation facil ities--are classified in U.S. Industry 221113, Nuclear Electric Power Generation.

For the 2012 Economic Census, establishments primarily engaged in operating solar electric power generation facilities are classified in U.S. Industry 221114, Solar Electric Power Generation; operating wind electric power generation facilities are classified in U.S. Industry 221115, Wind Electric Power Generation; operating geothermal electric power generation facilities are classified in U.S. Industry 221116, Geothermal Electric Power Generation; operating biomass electric power generation facilities are classified in U.S. Industry 221117, Biomass Electric Power Generation; and operating other electric power generation facilities are classified in U.S. Industry 221118, Other Electric Power Generation. For the 2007 Economic Census, establishments primarily engaged in operating electric power generation facilities (solar, wind, geothermal, biomass, and other electric power generation) were c lassified in Industry Group 221119, Other Electric Power Geeration.