Basalt
Eagle County, Colorado · EIA plant ID 7458 · Operator: City of Aspen- (CO)
Nameplate5MWSummer 5 MW
Generators1in service
Net generation14GWh12 mo to Dec 2025
Capacity factor34%hydro units, summer MW
Heat rate—thermal plants only
First online1985
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 0 | 0.0% | — |
| 2003 | 12.2 | 27.8% | — |
| 2004 | 11 | 25.1% | — |
| 2005 | 15.8 | 36.1% | — |
| 2006 | 17.9 | 40.8% | — |
| 2007 | 17.1 | 39.1% | — |
| 2008 | 20.9 | 47.6% | — |
| 2009 | 19.5 | 44.5% | — |
| 2010 | 15.4 | 35.1% | — |
| 2011 | 18.7 | 42.7% | — |
| 2012 | 12.9 | 32.6% | — |
| 2013 | 1.1 | 2.8% | — |
| 2014 | 20.2 | 51.3% | — |
| 2015 | 20.5 | 51.9% | — |
| 2016 | 22.7 | 57.4% | — |
| 2017 | 16.8 | 42.6% | — |
| 2018 | 15.9 | 40.3% | — |
| 2019 | 16 | 40.5% | — |
| 2020 | 16.2 | 41.1% | — |
| 2021 | 12.1 | 30.8% | — |
| 2022 | 12.4 | 31.4% | — |
| 2023 | 16.3 | 41.4% | — |
| 2024 | 18.8 | 47.5% | — |
| 2025 | 13.5 | 34.3% | — |
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 | Conventional Hydroelectric | HY | 5 | 4.5 | Sep 1985 | Operating | — | coming soon |
Owner / operator
Operator: City of Aspen- (CO). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Aspen- (CO) | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Pitkin County Solar | 5 MW | 13.7 km |
| Sunnyside Ranch Community Solar Array | 2 MW | 29.4 km |
| Eagle Valley Clean Energy LLC Biomass | retired | 33.4 km |
| American Gypsum Cogeneration | 10 MW | 33.6 km |
| Ameresco HCE Solar LLC | 5 MW | 37.3 km |
| Sugarloaf Hydro Plant | 3 MW | 40.4 km |