Thermalito Diverson Dam

Thermalito Diverson Dam is a 3 MW hydroelectric power plant in Butte County, California, operated by California Dept. of Water Resources. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 1987.

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
3.4 MW
3 MW net summer
Generating units
1
In service
1987
EIA plant ID
7129

Where it is

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County
Butte County, California
Coordinates
39.5287, -121.5464
Balancing authority
CISO
Sector
Electric Utility

Units, technology and status

Operator of record
California Dept. of Water Resources
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant California Dept. of Water Resources reports to EIA →

Thermalito Diverson Dam: FAQ

Where is Thermalito Diverson Dam?
In Butte 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 Thermalito Diverson Dam?
3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Thermalito Diverson Dam?
EIA-860M names California Dept. of Water Resources 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 Thermalito Diverson Dam LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — California Dept. of Water Resources 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 "Thermalito Diverson Dam LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Thermalito Diverson Dam still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.