Mid-Set Cogeneration

Mid-Set Cogeneration is a 39 MW natural gas power plant in Kern County, California, operated by Mid Set Cogeneration Co. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 1989.

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
39.1 MW
36 MW net summer
Generating units
1
In service
1989
EIA plant ID
10501

Where it is

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County
Kern County, California
Coordinates
35.1946, -119.571
Balancing authority
CISO
Sector
IPP CHP

Units, technology and status

Operator of record
Mid Set Cogeneration Co
Primary energy source
Natural gas
Technologies
Natural Gas Fired Combustion Turbine
Status
Out of service and NOT expected to return to service in next calendar year

Every plant Mid Set Cogeneration Co reports to EIA →

Mid-Set Cogeneration: FAQ

Where is Mid-Set Cogeneration?
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 Mid-Set Cogeneration?
39 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Mid-Set Cogeneration?
EIA-860M names Mid Set Cogeneration Co 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 Mid-Set Cogeneration LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Mid Set Cogeneration Co 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 "Mid-Set Cogeneration LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Mid-Set Cogeneration still running?
EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.