Cheyenne Prairie Generating Station
Cheyenne Prairie Generating Station is a 140 MW natural gas power plant in Laramie County, Wyoming, operated by Black Hills Service Company LLC. EIA-860M lists 4 generating units here. Its units entered service in 2014.
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
- 140 MW
- 131 MW net summer
- Generating units
- 4
- In service
- 2014
- EIA plant ID
- 57703
Where it is
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- County
- Laramie County, Wyoming
- Coordinates
- 41.1236, -104.72
- Balancing authority
- WACM
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Black Hills Service Company LLC
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle, Natural Gas Fired Combustion Turbine
- Status
- Operating
Every plant Black Hills Service Company LLC reports to EIA →
Cheyenne Prairie Generating Station: FAQ
- Where is Cheyenne Prairie Generating Station?
- In Laramie 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 Cheyenne Prairie Generating Station?
- 140 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
- Who owns Cheyenne Prairie Generating Station?
- EIA-860M names Black Hills Service Company LLC 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 Cheyenne Prairie Generating Station LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Black Hills Service Company LLC 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 "Cheyenne Prairie Generating Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Cheyenne Prairie Generating Station still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.