West Valley Generation Project
Salt Lake County, Utah · EIA plant ID 55622 · Operator: Utah Municipal Power Agency
Nameplate217MWSummer 185 MW
Generators5in service
Net generation344GWh12 mo to Aug 2026
Capacity factor21%gas/coal/oil units, summer MW
Heat rate10,098Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 357.8 | 28.7% | 9,882 |
| 2003 | 580.8 | 35.8% | 9,581 |
| 2004 | 395.5 | 24.3% | 9,515 |
| 2005 | 343.9 | 19.4% | 10,586 |
| 2006 | 457.1 | 25.8% | 10,777 |
| 2007 | 667.3 | 37.7% | 10,936 |
| 2008 | 427.2 | 24.1% | 10,479 |
| 2009 | 237.8 | 14.4% | 10,072 |
| 2010 | 182.9 | 11.1% | 10,026 |
| 2011 | 177 | 10.7% | 11,072 |
| 2012 | 268.4 | 16.2% | 14,402 |
| 2013 | 339.5 | 20.9% | 15,379 |
| 2014 | 115.6 | 7.1% | 10,276 |
| 2015 | 104.7 | 6.5% | 10,426 |
| 2016 | 102.2 | 6.3% | 11,212 |
| 2017 | 121.6 | 7.5% | 11,596 |
| 2018 | 215.1 | 13.3% | 11,009 |
| 2019 | 191.2 | 11.8% | 10,320 |
| 2020 | 307.5 | 18.9% | 10,789 |
| 2021 | 237.2 | 14.6% | 10,782 |
| 2022 | 500.9 | 30.9% | 10,456 |
| 2023 | 846.4 | 52.2% | 9,944 |
| 2024 | 790.1 | 48.6% | 10,126 |
| 2025 | 396.5 | 24.5% | 10,074 |
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 |
|---|---|---|---|---|---|---|---|---|
| U1 | Natural Gas Fired Combustion Turbine | GT | 43.4 | 37 | May 2002 | Operating | — | coming soon |
| U2 | Natural Gas Fired Combustion Turbine | GT | 43.4 | 37 | May 2002 | Operating | — | coming soon |
| U3 | Natural Gas Fired Combustion Turbine | GT | 43.4 | 37 | Oct 2001 | Operating | — | coming soon |
| U4 | Natural Gas Fired Combustion Turbine | GT | 43.4 | 37 | Oct 2001 | Operating | — | coming soon |
| U5 | Natural Gas Fired Combustion Turbine | GT | 43.4 | 37 | Jul 2002 | Operating | — | coming soon |
Owner / operator
Operator: Utah Municipal Power Agency. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Utah Municipal Power Agency | 100.0% | 217 MW |
Nearby plants
Within 80 km.
| Salt Lake Energy Systems | 3 MW | 8.8 km |
| Kennecott Power Plant | 38 MW | 9.2 km |
| Dominguez Energy Storage | 200 MW | 10.9 km |
| Copperton Solar Plant No. 1 | 30 MW | 11 km |
| eBay - South Jordan | retired | 11.9 km |
| Murray Turbine | 42 MW | 12 km |