Drop 1
Imperial County, California · EIA plant ID 585 · Operator: Imperial Irrigation District
Nameplate6MWSummer 4 MW
Generators3in service
Net generation9GWh12 mo to Dec 2025
Capacity factor27%hydro units, summer MW
Heat rate—thermal plants only
First online1984
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) |
|---|---|---|---|
| 2001 | 16.3 | 37.3% | — |
| 2002 | 20.2 | 46.2% | — |
| 2003 | 20.6 | 47.1% | — |
| 2004 | 19.2 | 43.8% | — |
| 2005 | 17.2 | 39.2% | — |
| 2006 | 20.7 | 47.2% | — |
| 2007 | 19.5 | 44.6% | — |
| 2008 | 13.7 | 31.1% | — |
| 2009 | 0 | 0.0% | — |
| 2010 | 19.6 | 44.8% | — |
| 2011 | 19.8 | 45.1% | — |
| 2012 | 21.1 | 48.1% | — |
| 2013 | 18.9 | 65.2% | — |
| 2014 | 16.4 | 49.3% | — |
| 2015 | 17 | 50.9% | — |
| 2016 | 12.4 | 37.1% | — |
| 2017 | 6.7 | 20.2% | — |
| 2018 | 1.7 | 5.0% | — |
| 2019 | 8.2 | 24.8% | — |
| 2020 | 12.2 | 36.6% | — |
| 2021 | 10.4 | 31.4% | — |
| 2022 | 6.5 | 19.7% | — |
| 2023 | 5.4 | 16.2% | — |
| 2024 | 7.8 | 23.4% | — |
| 2025 | 9 | 27.1% | — |
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 | 1.9 | 1.3 | Nov 1984 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 1.9 | 1.2 | Nov 1984 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 1.9 | 1.3 | Oct 1984 | 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% | 6 MW |
Nearby plants
Within 80 km.
| Drop 2 (CA) | 10 MW | 8.3 km |
| Drop 3 (CA) | 9 MW | 17.2 km |
| Pilot Knob | 33 MW | 21.6 km |
| Yucca | 422 MW | 21.7 km |
| Drop 4 | 20 MW | 25.9 km |
| Yuma Cogeneration Associates | 63 MW | 27.1 km |