Improvement Dst No. 4

Improvement Dst No. 4 is a 1 MW solar farm in Kern County, California, operated by Kern County Water Agency - (CA). EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 2009.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity
1.1 MW
1.1 MW net summer
Generating units
1
In service
2009
EIA plant ID
57895

Where it is

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County
Kern County, California
Coordinates
35.4028, -119.0386
Balancing authority
CISO
Sector
Commercial Non-CHP

Units, technology and status

Operator of record
Kern County Water Agency - (CA)
Primary energy source
Solar
Technologies
Solar Photovoltaic
Status
Operating

Every plant Kern County Water Agency - (CA) reports to EIA →

Improvement Dst No. 4: FAQ

Where is Improvement Dst No. 4?
In Kern County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Improvement Dst No. 4?
1 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Improvement Dst No. 4?
EIA-860M names Kern County Water Agency - (CA) as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Improvement Dst No. 4 LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Kern County Water Agency - (CA) here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Improvement Dst No. 4 LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Improvement Dst No. 4 still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.