Fort St Vrain
Natural gas power plant in Weld County, Colorado. 1,148.5 MW of nameplate capacity across 6 generators, operated by Public Service Co of Colorado.
Also known as Fort St. Vrain Generating Station · EIA plant 6112
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Key facts
- Capacity
- 1,148.5 MWNameplate
- Generators
- 6 operatingEIA-860M, August 2026
- Operating since
- May 1996First generator online
- Operator
- Public Service Co of ColoradoEIA operator ID 15466
- Grid
- PSCOBalancing authority PSCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Weld County, CO40.2461, −104.8742
- EIA plant ID
- 6112EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Fort St Vrain produces
Free · EIA-923Net generation, 2025
4.13 TWh
4,129,135 MWh, final. 11 of 12 months reported
Capacity factor, 2025
44.7%
2024: 41.7%
January to July 2026
2.20 TWh
Provisional
Range, 2015 to 2023
2.7–4.1
TWh a year. Low 2017, high 2023
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 2,733,681 | Not reported | 12 of 12 |
| 2001 | 3,695,832 | Not reported | 12 of 12 |
| 2002 | 4,663,215 | Not reported | 12 of 12 |
| 2003 | 3,917,356 | Not reported | 12 of 12 |
| 2004 | 3,703,887 | Not reported | 12 of 12 |
| 2005 | 4,321,360 | Not reported | 12 of 12 |
| 2006 | 4,218,479 | Not reported | 12 of 12 |
| 2007 | 4,051,089 | Not reported | 12 of 12 |
| 2008 | 4,413,976 | Not reported | 12 of 12 |
| 2009 | 2,354,492 | Not reported | 8 of 12 |
| 2010 | 3,347,997 | 33.3% | 12 of 12 |
| 2011 | 3,447,083 | Not reported | 12 of 12 |
| 2012 | 3,360,797 | 33.3% | 12 of 12 |
| 2013 | 3,179,222 | Not reported | 12 of 12 |
| 2014 | 3,876,504 | 38.5% | 12 of 12 |
| 2015 | 3,566,523 | 35.4% | 12 of 12 |
| 2016 | 2,838,269 | 28.1% | 12 of 12 |
| 2017 | 2,744,604 | 27.3% | 12 of 12 |
| 2018 | 3,569,204 | 35.5% | 12 of 12 |
| 2019 | 4,004,703 | 39.8% | 12 of 12 |
| 2020 | 3,375,250 | 36.6% | 11 of 12 |
| 2021 | 3,090,654 | 30.7% | 12 of 12 |
| 2022 | 2,824,216 | Not reported | 12 of 12 |
| 2023 | 4,095,293 | 40.7% | 12 of 12 |
| 2024 | 3,850,274 | 41.7% | 11 of 12 |
| 2025 | 4,129,135 | 44.7% | 11 of 12 |
| 2026 (provisional, partial year) | 2,204,345 | 37.7% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
2.09M
US short tons. 2024: 2.04M
SO₂, 2025
11
US short tons
NOx, 2025
391
US short tons
5 of 5 EPA units reported CO₂ in 2025 (2, 3, 4, 5, 6), matched to EIA plant 6112 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
865
million gallons
Consumption, 2024
566
million gallons
Source
So Platte River/St Vrain Creek
Surface, Fresh. Induced-draft tower
Watershed stress
Low · 0.209
USGS SUI, HUC12 Outlet Saint Vrain Creek
12 of 12 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Fired Combined Cycle | 342.6 | July 1998 |
| 2 | Natural Gas Fired Combined Cycle | 175.1 | May 1996 |
| 3 | Natural Gas Fired Combined Cycle | 175.1 | January 1999 |
| 4 | Natural Gas Fired Combined Cycle | 175.1 | June 2001 |
| 5 | Natural Gas Fired Combustion Turbine | 140.3 | May 2009 |
| 6 | Natural Gas Fired Combustion Turbine | 140.3 | May 2009 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Public Service Co of Colorado as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Fort St Vrain
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Questions about Fort St Vrain
How much power does Fort St Vrain produce?
Fort St Vrain reported 4,129,135 MWh (4.13 TWh) of net generation in 2025, a 44.7% capacity factor on 1,148.5 MW of nameplate capacity. From January to July 2026 it reported 2.20 TWh, which is provisional. 11 of 12 months were reported for 2025.
Where is Fort St Vrain?
Fort St Vrain is in Weld County, Colorado, at 40.2461, −104.8742. It is in the Public Service Company of Colorado balancing area (PSCO).
Who operates Fort St Vrain?
EIA-860M for August 2026 lists Public Service Co of Colorado as the operator (EIA operator ID 15466). The operator is not always the owner.
When did Fort St Vrain start operating?
Its first generator began operating in May 1996, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page