Fremont Canyon
Natrona County, Wyoming · EIA plant ID 4176 · Operator: U S Bureau of Reclamation
Nameplate67MWSummer 67 MW
Generators2in service
Net generation234GWh12 mo to Dec 2025
Capacity factor40%hydro units, summer MW
Heat rate—thermal plants only
First online1960
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 | 255.5 | 43.6% | — |
| 2002 | 161.9 | 27.7% | — |
| 2003 | 152.5 | 26.1% | — |
| 2004 | 143.8 | 24.5% | — |
| 2005 | 175.1 | 29.9% | — |
| 2006 | 177.2 | 30.3% | — |
| 2007 | 174.2 | 29.8% | — |
| 2008 | 174.8 | 29.8% | — |
| 2009 | 171.5 | 29.3% | — |
| 2010 | 243.3 | 41.6% | — |
| 2011 | 289.5 | 49.5% | — |
| 2012 | 175.6 | 29.9% | — |
| 2013 | 147.7 | 25.2% | — |
| 2014 | 133.5 | 22.8% | — |
| 2015 | 189 | 32.3% | — |
| 2016 | 229.5 | 39.1% | — |
| 2017 | 289.3 | 49.4% | — |
| 2018 | 222.7 | 38.1% | — |
| 2019 | 201.9 | 34.5% | — |
| 2020 | 236.2 | 40.3% | — |
| 2021 | 191.7 | 32.8% | — |
| 2022 | 201.5 | 34.4% | — |
| 2023 | 176.3 | 30.1% | — |
| 2024 | 227.7 | 38.8% | — |
| 2025 | 233.5 | 39.9% | — |
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 | 33.4 | 33.4 | Jan 1961 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 33.4 | 33.4 | Dec 1960 | 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% | 67 MW |
Nearby plants
Within 80 km.
| Alcova | 41 MW | 10.2 km |
| Kortes | 36 MW | 34.3 km |
| Seminoe | 52 MW | 36.8 km |
| TB Flats | 503 MW | 56.9 km |
| Casper Wind Farm | 17 MW | 65.3 km |
| Ekola Flats | 251 MW | 70.4 km |