Buffalo Bill
Park County, Wyoming · EIA plant ID 7317 · Operator: U S Bureau of Reclamation
Nameplate18MWSummer 18 MW
Generators3in service
Net generation57GWh12 mo to Dec 2025
Capacity factor36%hydro units, summer MW
Heat rate—thermal plants only
First online1992
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 | 43.1 | 27.4% | — |
| 2002 | 40.2 | 25.5% | — |
| 2003 | 45 | 28.5% | — |
| 2004 | 47 | 29.7% | — |
| 2005 | 58.2 | 36.9% | — |
| 2006 | 52.5 | 33.3% | — |
| 2007 | 39.5 | 25.1% | — |
| 2008 | 79.5 | 50.3% | — |
| 2009 | 87.1 | 55.3% | — |
| 2010 | 62.1 | 39.4% | — |
| 2011 | 77.6 | 49.2% | — |
| 2012 | 66 | 41.7% | — |
| 2013 | 58.2 | 36.9% | — |
| 2014 | 97.1 | 61.6% | — |
| 2015 | 58.2 | 36.9% | — |
| 2016 | 53.6 | 33.9% | — |
| 2017 | 119.6 | 75.8% | — |
| 2018 | 104.6 | 66.3% | — |
| 2019 | 91.3 | 57.9% | — |
| 2020 | 75.3 | 47.6% | — |
| 2021 | 61.1 | 38.7% | — |
| 2022 | 60.4 | 38.3% | — |
| 2023 | 73.2 | 46.4% | — |
| 2024 | 66.2 | 41.9% | — |
| 2025 | 57.5 | 36.4% | — |
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 | 6 | 6 | Sep 1992 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 6 | 6 | Sep 1992 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 6 | 6 | Sep 1992 | 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% | 18 MW |
Nearby plants
Within 80 km.
| Shoshone (WY) | 3 MW | 1 km |
| Spirit Mountain | 5 MW | 3.3 km |
| Heart Mountain | 5 MW | 3.3 km |
| Garland Canal Power Plant | 3 MW | 34.3 km |
| Elk Basin Gasoline Plant | 1 MW | 58.6 km |
| South Dry Creek Hydro | 2 MW | 77.6 km |