2022 NAICS national industry in sector 22 Utilities
221117 Biomass Electric Power Generation
NAICS 221117 is the US industry code for biomass electric power generation. This U.S.
- Code
- 221117 (2022 NAICS)
- Title
- Biomass Electric Power Generation
- Part of
- Electric Power Generation
- SBA small business limit
- Up to 550 employees
- Closest UK SIC
- 35110, 35120, 35130, 35140 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in operating biomass electric power generation facilities. These facilities use biomass (e.g., wood, waste, alcohol fuels) to produce electric energy. The electric energy produced in these establishments is provided to electric power transmission systems or to electric power distribution systems.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Establishments primarily engaged in operating trash disposal incinerators that also generate electricity are classified in U.S. Industry 562213, Solid Waste Combustors and Incinerators.
Activities listed under 221117
The Census index assigns these 3 activities to this code. If your business matches one, this is your code.
- Biomass electric power generation
- Electric power generation, biomass
- Power generation, biomass
SBA size standard for 221117
To count as a small business for SBA loans and federal contracts under NAICS 221117, your business (including affiliates) must not exceed 550 employees. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 3510), so treat them as a starting point and check the definition.
- 35110Production of electricityUK SIC
- 35120Transmission of electricityUK SIC
- 35130Distribution of electricityUK SIC
- 35140Trade of electricityUK SIC
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.