Pilot Butte
Pilot Butte is a 2 MW hydroelectric power plant in Fremont County, Wyoming, operated by U S Bureau of Reclamation. EIA-860M lists 2 generating units here. Its units entered service between 1925 and 1929.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 1.6 MW
- 1.6 MW net summer
- Generating units
- 2
- In service
- 1925–1929
- EIA plant ID
- 674
Where it is
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- County
- Fremont County, Wyoming
- Coordinates
- 43.219, -108.7877
- Balancing authority
- WAUW
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- U S Bureau of Reclamation
- Primary energy source
- Hydro
- Technologies
- Conventional Hydroelectric
- Status
- Out of service and NOT expected to return to service in next calendar year
Pilot Butte: FAQ
- Where is Pilot Butte?
- In Fremont County, Wyoming (WY). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Pilot Butte?
- 2 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Pilot Butte?
- EIA-860M names U S Bureau of Reclamation as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Pilot Butte LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — U S Bureau of Reclamation here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Pilot Butte LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Pilot Butte still running?
- EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.