Analysis
NAICS 221111 is the 2022 national industry for hydroelectric power generation, part of 22111 (Electric Power Generation). Census lists 3 example activities under it in the official index.
County Business Patterns counts 561 US establishments in this code in 2023, employing 4,156 people at an average annual payroll of $120,624 per employee (91st percentile of national industries). 63% of the establishments have fewer than five employees, which marks it as a small-business industry.
Its index entries, the activities Census uses to assign businesses to this code, include electric power generation, hydroelectric, hydroelectric power generation and power generation, hydroelectric.
Between 2018 and 2023 the number of establishments grew 2% and employment fell 5%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.
By establishments it ranks 4th of the 8 codes at this level within Electric Power Generation, with 13.4% of them.
Official definition
This U.S. industry comprises establishments primarily engaged in operating hydroelectric power generation facilities. These facilities use water power to drive a turbine and produce electric energy. The electric energy produced in these establishments is provided to electric power transmission systems or to electric power distribution systems.
Source: US Census Bureau, NAICS 2022 Manual.
Index entries (3)
- Electric power generation, hydroelectric
- Hydroelectric power generation
- Power generation, hydroelectric