Alamosa
Natural gas power plant in Alamosa County, Colorado. 53.2 MW of nameplate capacity across 2 generators, operated by Public Service Co of Colorado.
Also known as EIA plant 464
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 53.2 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- June 1973First generator online
- Operator
- Public Service Co of ColoradoEIA operator ID 15466
- Grid
- PSCOBalancing authority PSCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Alamosa County, CO37.4594, −105.8947
- EIA plant ID
- 464EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Alamosa produces
Free · EIA-923Net generation, 2025
27.2 GWh
27,223 MWh, final
Capacity factor, 2025
5.8%
2024: Not reported
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.4–27.2
GWh a year. Low 2017, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 5,307 | Not reported | 12 of 12 |
| 2001 | 11,181 | Not reported | 12 of 12 |
| 2002 | 9,544 | Not reported | 12 of 12 |
| 2003 | 3,027 | Not reported | 11 of 12 |
| 2004 | 550 | Not reported | 12 of 12 |
| 2005 | 2 | Not reported | 12 of 12 |
| 2006 | 22 | Not reported | 12 of 12 |
| 2007 | 263 | Not reported | 12 of 12 |
| 2008 | 792 | Not reported | 12 of 12 |
| 2009 | 1,081 | Not reported | 12 of 12 |
| 2010 | 3,632 | 0.7% | 12 of 12 |
| 2011 | 11,404 | Not reported | 12 of 12 |
| 2012 | 4,864 | 1.0% | 12 of 12 |
| 2013 | 9,964 | 2.1% | 12 of 12 |
| 2014 | 1,866 | 0.4% | 12 of 12 |
| 2015 | 3,593 | 0.8% | 12 of 12 |
| 2016 | 4,072 | 0.9% | 12 of 12 |
| 2017 | 406 | 0.1% | 12 of 12 |
| 2018 | 8,794 | 1.9% | 12 of 12 |
| 2019 | 6,817 | 1.5% | 12 of 12 |
| 2020 | 13,018 | 2.8% | 12 of 12 |
| 2021 | 6,896 | 1.5% | 12 of 12 |
| 2022 | 13,872 | 3.0% | 12 of 12 |
| 2023 | 7,775 | Not reported | 12 of 12 |
| 2024 | 10,568 | Not reported | 12 of 12 |
| 2025 | 27,223 | 5.8% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CT1 | Natural Gas Fired Combustion Turbine | 26.6 | June 1973 |
| CT2 | Natural Gas Fired Combustion Turbine | 26.6 | June 1977 |
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 Alamosa
More plants operated by Public Service Co of Colorado
Questions about Alamosa
How much power does Alamosa produce?
Alamosa reported 27,223 MWh (27.2 GWh) of net generation in 2025, a 5.8% capacity factor on 53.2 MW of nameplate capacity.
Where is Alamosa?
Alamosa is in Alamosa County, Colorado, at 37.4594, −105.8947. It is in the Public Service Company of Colorado balancing area (PSCO).
Who operates Alamosa?
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 Alamosa start operating?
Its first generator began operating in June 1973, 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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page