Hoag Hospital Cogen Plant
Natural gas power plant · Orange County, California
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Internal Combustion Engine
- Operator
- Hoag Memorial Presbyterian Hospital
- County
- Orange County
- Generating units
- 4
- Share of state capacity
- 0.01%
- Rank among natural gas plants in California
- #214 of 309
- EIA plant code
- 58223
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Internal Combustion Engine | 1.5 MW | 1.2 MW | 2006 | Operating |
| 2 | Natural Gas Internal Combustion Engine | 1.5 MW | 1.2 MW | 2006 | Operating |
| 3 | Natural Gas Internal Combustion Engine | 1.5 MW | 1.2 MW | 2006 | Operating |
| TESLA | Batteries | 1.0 MW | 1.0 MW | 2020 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in California
| Deer Creek PH | Hydro | 5.5 MW |
| HEBT Irvine 1 | Battery storage | 5.5 MW |
| University of the Pacific | Solar | 5.5 MW |
| San Manuel Central Plant Cogens | Natural gas | 5.4 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 5.5 MW solar plant and a 5.5 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All California power plants · What California actually generates