221117 — Biomass Electric Power Generation
Description
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.
Exclusions & 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.
Overview Facts
| NAICS Code | 221117 |
|---|---|
| Industry Title | Biomass Electric Power Generation |
| SBA Size Standard | 550 employees |
| U.S. Establishments | 116 (Census CBP, 2023) |
| IRS PBA Code | 221100 (rolled-up match) |
| Sectors Hierarchy | Sector 22 → 221 → 2211 |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 4911 - Electric Services (via SIC1987:4911→NAICS1997:221119→2002:221119→2007:221119→2012:221117→2017:221117→2022:221117)
- SIC 4931 - Electric and Other Services Combined (via SIC1987:4931→NAICS1997:221119→2002:221119→2007:221119→2012:221117→2017:221117→2022:221117)
- SIC 4939 - Combination Utilities, NEC (via SIC1987:4939→NAICS1997:221119→2002:221119→2007:221119→2012:221117→2017:221117→2022:221117)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC M1MZ — OPERATION OF EPG FACILITIES - OTHER, INCLUDING TRANSMISSION
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 221117:
- Sector 22 Directory Hub — List of related industries in the Utilities sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 2211
Frequently Asked Questions (FAQ)
Is 221117 a valid 2022 NAICS code?
NAICS 221117 is 'Biomass Electric Power Generation', a 2022 U.S. national industry under Sector 22 (Utilities); the SBA small-business size standard is 550 employees.
What is the SBA size standard for NAICS 221117?
The SBA small business size standard for NAICS 221117 is 550 employees (based on employees).
What is the legacy SIC code mapping for 221117?
NAICS code 221117 maps to the legacy 1987 SIC codes: 4911 - Electric Services, 4931 - Electric and Other Services Combined, 4939 - Combination Utilities, NEC.