Improvement Dst No. 4
Kern County, California · EIA plant ID 57895 · Operator: Kern County Water Agency
Nameplate1MWSummer 1 MW
Generators1in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%solar units, summer MW
Heat rate—thermal plants only
First online2009
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), solar 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) |
|---|---|---|---|
| 2011 | 1.7 | 17.1% | — |
| 2012 | 1.8 | 19.1% | — |
| 2013 | 1.9 | 20.0% | — |
| 2014 | 1.7 | 17.3% | — |
| 2015 | 1.4 | 14.1% | — |
| 2016 | 1.5 | 15.5% | — |
| 2017 | 1.8 | 18.3% | — |
| 2018 | 1.5 | 15.2% | — |
| 2019 | 1.6 | 16.2% | — |
| 2020 | 0.5 | 5.6% | — |
| 2021 | 0.5 | 5.7% | — |
| 2022 | 0 | 0.1% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.1% | — |
| 2025 | 0 | 0.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| ID4 | Solar Photovoltaic | PV | 1.1 | 1.1 | Jan 2009 | Operating | — | coming soon |
Owner / operator
Operator: Kern County Water Agency. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Kern County Water Agency | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Kern Co Sheriff | 1 MW | 2.1 km |
| Western Power & Steam Inc | 28 MW | 4.8 km |
| Amazon Bakersfield 1 Solar Project | 6 MW | 5 km |
| Bakersfield College Solar 01 | 1 MW | 6.4 km |
| Calibrant Bakersfield LLC | 1 MW | 6.6 km |
| Southeast Kern River Cogen | 31 MW | 7 km |