JM Shafer Generating Station
JM Shafer Generating Station is a 397 MW natural gas power plant in Weld County, Colorado, operated by Tri-State G & T Assn, Inc. EIA-860M lists 7 generating units here. Its units entered service in 1994.
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
- 396.9 MW
- 272 MW net summer
- Generating units
- 7
- In service
- 1994
- EIA plant ID
- 50707
Where it is
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- County
- Weld County, Colorado
- Coordinates
- 40.0986, -104.7736
- Balancing authority
- PSCO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Tri-State G & T Assn, Inc
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle
- Status
- Operating
JM Shafer Generating Station: FAQ
- Where is JM Shafer Generating Station?
- In Weld County, Colorado (CO). 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 JM Shafer Generating Station?
- 397 MW of nameplate capacity across 7 units, as of the EIA-860M release for 2026-07.
- Who owns JM Shafer Generating Station?
- EIA-860M names Tri-State G & T Assn, Inc 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 JM Shafer Generating Station LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Tri-State G & T Assn, Inc 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 "JM Shafer 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 JM Shafer Generating Station still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.