Headgate Rock
La Paz County, Arizona · EIA plant ID 7179 · Operator: Colorado River Indian Irr Proj
Nameplate20MWSummer 20 MW
Generators3in service
Net generation41GWh12 mo to Dec 2025
Capacity factor24%hydro units, summer MW
Heat rate—thermal plants only
First online1993
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 | 84.5 | 49.4% | — |
| 2003 | 77.8 | 45.5% | — |
| 2004 | 75 | 43.8% | — |
| 2005 | 66.6 | 39.0% | — |
| 2006 | 76.1 | 44.5% | — |
| 2007 | 80 | 46.8% | — |
| 2008 | 83.2 | 48.5% | — |
| 2009 | 77.6 | 45.4% | — |
| 2010 | 77.9 | 45.6% | — |
| 2011 | 79 | 46.2% | — |
| 2012 | 76.8 | 44.8% | — |
| 2013 | 78.9 | 46.2% | — |
| 2014 | 79.9 | 46.8% | — |
| 2015 | 73.4 | 43.0% | — |
| 2016 | 75.7 | 44.2% | — |
| 2017 | 72.8 | 42.6% | — |
| 2018 | 67.9 | 39.8% | — |
| 2019 | 72.4 | 42.4% | — |
| 2020 | 75.6 | 44.1% | — |
| 2021 | 69 | 40.4% | — |
| 2022 | 56.4 | 33.0% | — |
| 2023 | 32.3 | 18.9% | — |
| 2024 | 35.7 | 20.8% | — |
| 2025 | 40.9 | 23.9% | — |
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 | 6.5 | 6.5 | Mar 1993 | Operating (Out of service, expected back within the year) | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 6.5 | 6.5 | Aug 1993 | Operating (Out of service, expected back within the year) | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 6.5 | 6.5 | Jul 1993 | Operating (Out of service, expected back within the year) | — | coming soon |
Owner / operator
Operator: Colorado River Indian Irr Proj. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Colorado River Indian Irr Proj | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Parker Dam | 120 MW | 18.9 km |
| Vidal Energy Center | — | 20.1 km |
| La Paz Solar Tower | — | 27.9 km |
| Atlas | — | 51.3 km |
| Palo Verde College | 1 MW | 66.1 km |
| McCoy Solar Energy Project Hybrid | 501 MW | 67.8 km |