Rockwood
Imperial County, California · EIA plant ID 7824 · Operator: Imperial Irrigation District
Nameplate50MWSummer 42 MW
Generators2in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate14,174Btu/kWhfossil units, electric fuel, HHV
First online1979Runs as rarely runs
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 10.3 | 2.8% | 13,867 |
| 2002 | 5.2 | 1.4% | 14,394 |
| 2003 | 10.9 | 3.0% | 14,256 |
| 2004 | 4.7 | 1.3% | 14,518 |
| 2005 | 4 | 1.1% | 15,612 |
| 2006 | 3.6 | 1.0% | 15,161 |
| 2007 | 3.2 | 0.8% | 15,312 |
| 2008 | 3.4 | 0.8% | 14,118 |
| 2009 | 3.2 | 0.8% | 13,440 |
| 2010 | 2.7 | 0.7% | 14,218 |
| 2011 | 2.9 | 0.7% | 9,612 |
| 2012 | 3.5 | 0.9% | 14,756 |
| 2013 | 1.3 | 0.3% | 14,653 |
| 2014 | 0 | 0.0% | — |
| 2015 | 1.4 | 0.3% | 16,513 |
| 2016 | 1.6 | 0.4% | 14,613 |
| 2017 | 2.1 | 0.5% | 14,285 |
| 2018 | 1.1 | 0.3% | 14,649 |
| 2019 | 0.9 | 0.2% | 15,313 |
| 2020 | 1 | 0.3% | 15,351 |
| 2021 | 3 | 0.8% | 14,863 |
| 2022 | 2.9 | 0.8% | 13,784 |
| 2023 | 3.9 | 1.1% | 13,901 |
| 2024 | 6.8 | 1.8% | 14,245 |
| 2025 | 0.4 | 0.1% | 14,174 |
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 | Natural Gas Fired Combustion Turbine | GT | 24.9 | 21.2 | Jun 1979 | Operating | — | coming soon |
| 2 | Petroleum Liquids | GT | 24.9 | 21.1 | Apr 1980 | Operating | — | coming soon |
Owner / operator
Operator: Imperial Irrigation District. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Imperial Irrigation District | 100.0% | 50 MW |
Nearby plants
Within 80 km.
| Crown Cooling Facility | 1 MW | 1.4 km |
| CE&P Imperial Valley 1 | — | 5 km |
| Spreckels Sugar Company | 9 MW | 5.7 km |
| Mesquite Lake Water & Power Plant 1 | retired | 5.8 km |
| Community Solar 1 | 6 MW | 5.9 km |
| Mesquite Lake Energy Park Plant 2 | 21 MW | 6.2 km |