Gross Hydro Plant
Jefferson County, Colorado · EIA plant ID 10424 · Operator: Denver City & County of
Nameplate8MWSummer 8 MW
Generators2in service
Net generation9GWh12 mo to Dec 2025
Capacity factor13%hydro units, summer MW
Heat rate—thermal plants only
First online2007
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) |
|---|---|---|---|
| 2007 | 0.2 | 0.8% | — |
| 2008 | 10.4 | 15.3% | — |
| 2009 | 19.2 | 28.2% | — |
| 2010 | 15.4 | 22.6% | — |
| 2011 | 21.6 | 31.6% | — |
| 2012 | 0 | 0.0% | — |
| 2013 | 0 | 0.0% | — |
| 2014 | 22 | 32.1% | — |
| 2015 | 18.5 | 27.1% | — |
| 2016 | 16.9 | 24.6% | — |
| 2017 | 15.7 | 22.9% | — |
| 2018 | 17.5 | 25.6% | — |
| 2019 | 13.7 | 20.0% | — |
| 2020 | 17.9 | 26.1% | — |
| 2021 | 11.7 | 17.1% | — |
| 2022 | 12.8 | 18.2% | — |
| 2023 | 10.8 | 15.5% | — |
| 2024 | 10.3 | 14.7% | — |
| 2025 | 9.2 | 13.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 4 | 4 | Aug 2007 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 4 | 4 | Aug 2007 | Operating | — | coming soon |
Owner / operator
Operator: Denver City & County of. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Denver City & County of | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| Boulder Canyon Hydro | 5 MW | 6.9 km |
| Boulder City Betasso Hydro Plant | 3 MW | 7.5 km |
| Boulder City Lakewood Hydro | 4 MW | 7.5 km |
| University of Colorado | 33 MW | 10.1 km |
| Boulder City Silver Lake Hydro | 3 MW | 13.2 km |
| IBM Solar | 8 MW | 14 km |