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1148.5 MW Natural Gas Fired Combined Cycle (868 MW) + Natural Gas Fired Combustion Turbine (281 MW) operating in Weld, CO — Public Service Company of Colorado
1,148.5 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combined Cycle + Natural Gas Fired Combustion Turbine
1996
Operating Since
Coordinates
40.2461, -104.8742
County
Weld, CO
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Public Service Co of Colorado | — | — |
| Owner(s) | Public Service Co of Colorado | — | — |
| Status | Operating | — | — |
The Fort St. Vrain Nuclear Power Plant is a former commercial nuclear power station located near the town of Platteville in northern Colorado in the United States. It originally operated from 1979 until 1989. It had a 330 MWe high-temperature gas-cooled reactor (HTGR). The plant was decommissioned between 1989 and 1992.
Read more on WikipediaFort St Vrain is a natural gas-fired power plant located in Weld County, Colorado. The plant has a total capacity of 1148.5 MW across 6 generators, utilizing both natural gas fired combined cycle and natural gas fired combustion turbine technologies. It began operating in 1996 and is operated by Public Service Co of Colorado. Fort St Vrain is a hybrid plant and is the largest of 24 power plants in Colorado, and ranks 129th out of 945 plants nationally.
The plant operates within the Public Service Company of Colorado balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. The latest annual generation data shows an output of 4,129,135 MWh, resulting in a capacity factor of 44.7%. Financial data indicates an installed cost of $522.87 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
383.0K MWh
Latest Month
4.1M MWh
Annual Generation
44.7%
Capacity Factor
CO₂ Intensity
894 lb/MWh
NOx
0.162 lb/MWh
SO₂
Combined cycle · Public Service Company of Colorado · Data from 2019
$523/kW
Installed Cost
$3/kW
Annual CapEx
$27.8/MWh
Operating Cost
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-14
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ask pi about Fort St VrainPublic Service Company of Colorado (PSCO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.005 lb/MWh
CH₄
0.016 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
40.7%
Annual Net Gen
4095 GWh
CO₂eq
895 lb/MWh
Subregion
WECC Rockies