Hardin Generator Project
Hardin Generator Project is a 116 MW coal power plant in Big Horn County, Montana, operated by Heorot Power Management. EIA-860M lists 1 generating unit here. Its unit entered service in 2006.
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
- 115.7 MW
- 107 MW net summer
- Generating units
- 1
- In service
- 2006
- EIA plant ID
- 55749
Where it is
Loading map…
- County
- Big Horn County, Montana
- Coordinates
- 45.7578, -107.6
- Balancing authority
- NWMT
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Heorot Power Management
- Primary energy source
- Coal
- Technologies
- Conventional Steam Coal
- Status
- Operating
Hardin Generator Project: FAQ
- Where is Hardin Generator Project?
- In Big Horn County, Montana (MT). 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 Hardin Generator Project?
- 116 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Hardin Generator Project?
- EIA-860M names Heorot Power Management 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 Hardin Generator Project LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Heorot Power Management 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 "Hardin Generator Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Hardin Generator Project still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.