Isabella Hydro Project

Isabella Hydro Project is a 12 MW hydroelectric power plant in Kern County, California, operated by Isabella Partners. EIA-860M lists 2 generating units here, inside CAISO. Its units entered service in 1990.

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
11.8 MW
11.8 MW net summer
Generating units
2
In service
1990
EIA plant ID
10139

Where it is

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County
Kern County, California
Coordinates
35.6441, -118.482
Balancing authority
CISO
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Isabella Partners
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Isabella Partners reports to EIA →

Isabella Hydro Project: FAQ

Where is Isabella Hydro Project?
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 Isabella Hydro Project?
12 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Isabella Hydro Project?
EIA-860M names Isabella Partners 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 Isabella Hydro Project LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Isabella Partners 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 "Isabella Hydro Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Isabella Hydro Project still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.