Fort St Vrain
Weld County, Colorado · EIA plant ID 6112 · Operator: Public Service Co of Colorado
478 MW under construction (Natural Gas Fired Combustion Turbine), first expected Dec 2027 · EIA-860M
Nameplate1,149MWSummer 1,022 MW
Generators6in service · 478 MW building
Net generation3,719GWh12 mo to Aug 2026
Capacity factor45%gas/coal/oil units, summer MW
Heat rate7,726Btu/kWhfossil units, electric fuel, HHV
First online1996Runs 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) |
|---|---|---|---|
| 2001 | 3,695.8 | — | — |
| 2002 | 4,663.2 | — | — |
| 2003 | 3,917.4 | 64.7% | 7,779 |
| 2004 | 3,703.9 | 61.1% | 7,833 |
| 2005 | 4,321.4 | 71.5% | 7,463 |
| 2006 | 4,218.5 | 69.8% | 7,597 |
| 2007 | 4,051.1 | 66.5% | 7,621 |
| 2008 | 4,414 | 72.3% | 7,502 |
| 2009 | 3,934.9 | 51.4% | 7,914 |
| 2010 | 3,348 | 39.4% | 7,955 |
| 2011 | 3,447.1 | 40.6% | 8,014 |
| 2012 | 3,360.8 | 39.5% | 7,997 |
| 2013 | 3,179.2 | 37.5% | 8,056 |
| 2014 | 3,876.5 | 45.7% | 7,868 |
| 2015 | 3,566.5 | 42.0% | 7,719 |
| 2016 | 2,838.3 | 33.4% | 7,899 |
| 2017 | 2,744.6 | 32.4% | 8,180 |
| 2018 | 3,569.2 | 42.1% | 7,751 |
| 2019 | 4,004.7 | 47.2% | 7,827 |
| 2020 | 3,375.3 | 39.7% | 8,340 |
| 2021 | 3,090.7 | 36.3% | 8,046 |
| 2022 | 2,824.2 | 32.7% | 8,296 |
| 2023 | 4,095.3 | 47.5% | 7,311 |
| 2024 | 3,850.3 | 42.9% | 7,903 |
| 2025 | 4,129.1 | 46.1% | 7,632 |
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 | Natural Gas Fired Combined Cycle | CA | 342.6 | 308 | Jul 1998 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combined Cycle | CT | 175.1 | 150 | May 1996 | Operating | — | coming soon |
| 3 | Natural Gas Fired Combined Cycle | CT | 175.1 | 142 | Jan 1999 | Operating | — | coming soon |
| 4 | Natural Gas Fired Combined Cycle | CT | 175.1 | 142 | Jun 2001 | Operating | — | coming soon |
| 5 | Natural Gas Fired Combustion Turbine | GT | 140.3 | 140 | May 2009 | Operating | — | coming soon |
| 6 | Natural Gas Fired Combustion Turbine | GT | 140.3 | 140 | May 2009 | Operating | — | coming soon |
| 7 | Natural Gas Fired Combustion Turbine | GT | 239 | 177.9 | planned Dec 2027 | Under construction | — | coming soon |
| 8 | Natural Gas Fired Combustion Turbine | GT | 239 | 177.9 | planned Dec 2027 | Under construction | — | coming soon |
Owner / operator
Operator: Public Service Co of Colorado. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Public Service Co of Colorado | 100.0% | 1,149 MW |
Nearby plants
Within 80 km.
| NSE Camber Solar PS5 LLC (CSG) | 2 MW | 3 km |
| NSE Camber Solar PS6 LLC CSG | 2 MW | 4.5 km |
| Mead Battery Storage | 8 MW | 6.5 km |
| Vasquez V CSG | 4 MW | 6.6 km |
| Weld 1 Community Solar Array | 2 MW | 7.2 km |
| Gilcrest Sun CSG | 2 MW | 7.8 km |