NAICS Code 221111 — Hydroelectric Power Generation
National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 8 national industries under 22111 (Electric Power Generation).
| Code | 221111 |
|---|---|
| Title | Hydroelectric Power Generation |
| Level | National Industry (6-digit) |
| Edition | NAICS 2022 edition |
| SBA size standard | 750 employees |
Official definition (2022 NAICS)
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.
Is a business under 221111 "small"?
Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 221111 qualifies as a small business if it does not exceed 750 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.
Where 221111 sits in the hierarchy
| Level | Code | Title |
|---|---|---|
| Sector | 22 | Utilities |
| Subsector | 221 | Utilities |
| Industry Group | 2211 | Electric Power Generation, Transmission and Distribution |
| NAICS Industry | 22111 | Electric Power Generation |
| National Industry | 221111 | Hydroelectric Power Generation |
Related SIC codes
Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.
| SIC code | Title |
|---|---|
4911 | Electric Services |
4931 | Electric and Other Services Combined |
4939 | Combination Utilities, Not Elsewhere Classified |
Related National Industry codes
221112— Fossil Fuel Electric Power Generation221113— Nuclear Electric Power Generation221114— Solar Electric Power Generation221115— Wind Electric Power Generation221116— Geothermal Electric Power Generation221117— Biomass Electric Power Generation221118— Other Electric Power Generation
Not sure this is the right code?
Describe your business in plain English with the free NAICS code lookup, convert legacy codes with the SIC to NAICS crosswalk, or classify in bulk via the API (25 free calls/month).
Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.