Basalt
Hydro power plant in Eagle County, Colorado. 5 MW of nameplate capacity across 1 generator, operated by City of Aspen- (CO).
Also known as EIA plant 7458
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- September 1985First generator online
- Operator
- City of Aspen- (CO)EIA operator ID 918
- Grid
- PSCOBalancing authority PSCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Eagle County, CO39.3631, −106.8219
- EIA plant ID
- 7458EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Basalt produces
Free · EIA-923Net generation, 2025
13.5 GWh
13,509 MWh, final
Capacity factor, 2025
30.8%
2024: 42.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
12.1–22.7
GWh a year. Low 2021, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | 0 | Not reported | 12 of 12 |
| 2003 | 12,161 | Not reported | 12 of 12 |
| 2004 | 11,044 | Not reported | 12 of 12 |
| 2005 | 15,820 | Not reported | 12 of 12 |
| 2006 | 17,859 | Not reported | 12 of 12 |
| 2007 | 17,145 | Not reported | 12 of 12 |
| 2008 | 20,909 | Not reported | 12 of 12 |
| 2009 | 19,511 | Not reported | 12 of 12 |
| 2010 | 15,384 | 35.1% | 12 of 12 |
| 2011 | 18,697 | 42.7% | 12 of 12 |
| 2012 | 12,874 | 29.3% | 12 of 12 |
| 2013 | 1,114 | 2.5% | 12 of 12 |
| 2014 | 20,240 | 46.2% | 12 of 12 |
| 2015 | 20,476 | 46.7% | 12 of 12 |
| 2016 | 22,690 | 51.7% | 12 of 12 |
| 2017 | 16,797 | 38.3% | 12 of 12 |
| 2018 | 15,869 | 36.2% | 12 of 12 |
| 2019 | 15,951 | 36.4% | 12 of 12 |
| 2020 | 16,248 | 37.0% | 12 of 12 |
| 2021 | 12,138 | 27.7% | 12 of 12 |
| 2022 | 12,397 | 28.3% | 12 of 12 |
| 2023 | 16,329 | 37.3% | 12 of 12 |
| 2024 | 18,775 | 42.7% | 12 of 12 |
| 2025 | 13,509 | 30.8% | 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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 5.0 | September 1985 |
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 City of Aspen- (CO) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Basalt
How much power does Basalt produce?
Basalt reported 13,509 MWh (13.5 GWh) of net generation in 2025, a 30.8% capacity factor on 5 MW of nameplate capacity.
Where is Basalt?
Basalt is in Eagle County, Colorado, at 39.3631, −106.8219. It is in the Public Service Company of Colorado balancing area (PSCO).
Who operates Basalt?
EIA-860M for August 2026 lists City of Aspen- (CO) as the operator (EIA operator ID 918). The operator is not always the owner.
When did Basalt start operating?
Its first generator began operating in September 1985, 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