Otay Mesa Generating Project
Otay Mesa Generating Project is a 711 MW natural gas power plant in San Diego County, California, operated by Otay Mesa Energy Center LLC. EIA-860M lists 3 generating units here, inside CAISO. Its units entered service in 2009.
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
- 710.7 MW
- 592.8 MW net summer
- Generating units
- 3
- In service
- 2009
- EIA plant ID
- 55345
Where it is
Loading map…
- County
- San Diego County, California
- Coordinates
- 32.5815, -116.915
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Otay Mesa Energy Center LLC
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle
- Status
- Operating
Otay Mesa Generating Project: FAQ
- Where is Otay Mesa Generating Project?
- In San Diego 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 Otay Mesa Generating Project?
- 711 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
- Who owns Otay Mesa Generating Project?
- EIA-860M names Otay Mesa Energy Center LLC 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 Otay Mesa Generating Project LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Otay Mesa Energy Center LLC 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 "Otay Mesa Generating Project LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Otay Mesa Generating Project still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.