Spirit Mountain
Park County, Wyoming · EIA plant ID 7541 · Operator: U S Bureau of Reclamation
Nameplate5MWSummer 5 MW
Generators1in service
Net generation16GWh12 mo to Dec 2025
Capacity factor41%hydro units, summer MW
Heat rate—thermal plants only
First online1994
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 19.4 | 49.3% | — |
| 2002 | 13.1 | 33.1% | — |
| 2003 | 15.4 | 39.0% | — |
| 2004 | 16.5 | 41.8% | — |
| 2005 | 13.2 | 33.5% | — |
| 2006 | 16.3 | 41.4% | — |
| 2007 | 16 | 40.6% | — |
| 2008 | 14 | 35.4% | — |
| 2009 | 17.6 | 44.6% | — |
| 2010 | 16.3 | 41.4% | — |
| 2011 | 14.3 | 36.3% | — |
| 2012 | 17.8 | 45.0% | — |
| 2013 | 16.9 | 42.9% | — |
| 2014 | 16.3 | 41.4% | — |
| 2015 | 18.4 | 46.6% | — |
| 2016 | 16.8 | 42.6% | — |
| 2017 | 15 | 38.1% | — |
| 2018 | 15.5 | 39.4% | — |
| 2019 | 17.1 | 43.3% | — |
| 2020 | 16.4 | 41.5% | — |
| 2021 | 15.6 | 39.5% | — |
| 2022 | 15.8 | 40.0% | — |
| 2023 | 16.3 | 41.3% | — |
| 2024 | 17.3 | 43.7% | — |
| 2025 | 16.1 | 40.8% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 4.5 | 4.5 | Oct 1994 | Operating | — | coming soon |
Owner / operator
Operator: U S Bureau of Reclamation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| U S Bureau of Reclamation | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Heart Mountain | 5 MW | 0.1 km |
| Buffalo Bill | 18 MW | 3.3 km |
| Shoshone (WY) | 3 MW | 4.2 km |
| Garland Canal Power Plant | 3 MW | 31.7 km |
| Elk Basin Gasoline Plant | 1 MW | 56.8 km |
| South Dry Creek Hydro | 2 MW | 77.2 km |