Hoag Hospital Cogen Plant

Hoag Hospital Cogen Plant is a 6 MW natural gas power plant in Orange County, California, operated by Hoag Memorial Presbyterian Hospital. EIA-860M lists 4 generating units here, inside CAISO. Its units entered service between 2006 and 2020.

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
5.5 MW
4.6 MW net summer
Generating units
4
In service
2006–2020
EIA plant ID
58223

Where it is

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County
Orange County, California
Coordinates
33.6228, -117.9364
Balancing authority
CISO
Sector
Commercial CHP

Units, technology and status

Operator of record
Hoag Memorial Presbyterian Hospital
Primary energy source
Natural gas
Technologies
Batteries, Natural Gas Internal Combustion Engine
Status
Operating

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 5 MW, Battery 1 MW. It is filed here under Natural gas, the source with the most capacity.

Every plant Hoag Memorial Presbyterian Hospital reports to EIA →

Hoag Hospital Cogen Plant: FAQ

Where is Hoag Hospital Cogen Plant?
In Orange 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 Hoag Hospital Cogen Plant?
6 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Hoag Hospital Cogen Plant?
EIA-860M names Hoag Memorial Presbyterian Hospital 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 Hoag Hospital Cogen Plant LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Hoag Memorial Presbyterian Hospital 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 "Hoag Hospital Cogen Plant LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Hoag Hospital Cogen Plant still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.