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 Sly Creek?

12 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

EIA-860M names South Feather Water and Power Agency 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 Sly Creek LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — South Feather Water and Power Agency 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 "Sly Creek LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Sly Creek still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Sly Creek

Sly Creek is a 12 MW hydroelectric power plant in Butte County, California, operated by South Feather Water and Power Agency. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 1983.

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: 12.1 MW; 12.1 MW net summer
Generating units: 1
In service: 1983
EIA plant ID: 776

Where it is

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County: Butte County, California
Coordinates: 39.5804, -121.1195
Balancing authority: CISO
Sector: Electric Utility

Units, technology and status

Operator of record: South Feather Water and Power Agency
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Operating

Every plant South Feather Water and Power Agency reports to EIA →

Sly Creek: FAQ

Where is Sly Creek?: 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 Sly Creek?: 12 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Sly Creek?: EIA-860M names South Feather Water and Power Agency 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 Sly Creek LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — South Feather Water and Power Agency 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 "Sly Creek LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Sly Creek still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.