Alcova
Natrona County, Wyoming · EIA plant ID 6409 · Operator: U S Bureau of Reclamation
Nameplate41MWSummer 41 MW
Generators2in service
Net generation107GWh12 mo to Dec 2025
Capacity factor30%hydro units, summer MW
Heat rate—thermal plants only
First online1955
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 | 118.7 | 37.6% | — |
| 2002 | 72.3 | 21.3% | — |
| 2003 | 74.7 | 22.0% | — |
| 2004 | 71.1 | 19.6% | — |
| 2005 | 89.3 | 24.6% | — |
| 2006 | 113.9 | 31.4% | — |
| 2007 | 92.3 | 25.4% | — |
| 2008 | 79.3 | 21.8% | — |
| 2009 | 82.9 | 22.9% | — |
| 2010 | 111 | 30.6% | — |
| 2011 | 164.2 | 45.3% | — |
| 2012 | 132 | 36.3% | — |
| 2013 | 91.9 | 25.4% | — |
| 2014 | 73.1 | 20.2% | — |
| 2015 | 78.3 | 21.6% | — |
| 2016 | 108.7 | 29.9% | — |
| 2017 | 133.4 | 36.8% | — |
| 2018 | 109.1 | 30.1% | — |
| 2019 | 92.6 | 25.5% | — |
| 2020 | 139.1 | 38.3% | — |
| 2021 | 78.3 | 21.6% | — |
| 2022 | 89 | 24.5% | — |
| 2023 | 68.1 | 18.8% | — |
| 2024 | 119.2 | 32.8% | — |
| 2025 | 107.2 | 29.5% | — |
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 | 20.7 | 20.7 | Jul 1955 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 20.7 | 20.7 | Jul 1955 | 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% | 41 MW |
Nearby plants
Within 80 km.
| Fremont Canyon | 67 MW | 10.2 km |
| Kortes | 36 MW | 43.7 km |
| Seminoe | 52 MW | 46.4 km |
| Casper Wind Farm | 17 MW | 55.1 km |
| TB Flats | 503 MW | 57.3 km |
| Pioneer Wind Park, LLC | 80 MW | 72.4 km |