Improvement Dst No. 4
Solar power plant in Kern County, California. 1.1 MW of nameplate capacity across 1 generator, operated by Kern County Water Agency - (CA).
Also known as EIA plant 57895
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.1 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- January 2009First generator online
- Operator
- Kern County Water Agency - (CA)EIA operator ID 57262
- Grid
- CAISOBalancing authority CISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Kern County, CA35.4028, −119.0386
- EIA plant ID
- 57895EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Improvement Dst No. 4 produces
Free · EIA-923Net generation, 2025
0 MWh
0 MWh, final
Capacity factor, 2025
0.0%
2024: 0.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.0–1.8
GWh a year. Low 2023, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | 1,650 | 17.1% | 12 of 12 |
| 2012 | 1,844 | 19.1% | 12 of 12 |
| 2013 | 1,931 | 20.0% | 12 of 12 |
| 2014 | 1,662 | 17.2% | 12 of 12 |
| 2015 | 1,358 | 14.1% | 12 of 12 |
| 2016 | 1,502 | 15.5% | 12 of 12 |
| 2017 | 1,764 | 18.3% | 12 of 12 |
| 2018 | 1,469 | 15.2% | 12 of 12 |
| 2019 | 1,557 | 16.2% | 12 of 12 |
| 2020 | 545 | 5.6% | 12 of 12 |
| 2021 | 544 | 5.6% | 12 of 12 |
| 2022 | 8 | 0.1% | 12 of 12 |
| 2023 | 0 | 0.0% | 12 of 12 |
| 2024 | 12 | 0.1% | 12 of 12 |
| 2025 | 0 | 0.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| ID4 | Solar Photovoltaic | 1.1 | January 2009 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Kern County Water Agency - (CA) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Questions about Improvement Dst No. 4
How much power does Improvement Dst No. 4 produce?
Improvement Dst No. 4 reported 0 MWh (0 MWh) of net generation in 2025.
Where is Improvement Dst No. 4?
Improvement Dst No. 4 is in Kern County, California, at 35.4028, −119.0386. It is in the California Independent System Operator balancing area (CISO).
Who operates Improvement Dst No. 4?
EIA-860M for August 2026 lists Kern County Water Agency - (CA) as the operator (EIA operator ID 57262). The operator is not always the owner.
When did Improvement Dst No. 4 start operating?
Its first generator began operating in January 2009, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page