Cuyamaca Peak Energy Plant
San Diego Gas & Electric CompanySan Diego County
Cuyamaca Peak Energy Plant is SDG&E’s gas-fired peaking facility in El Cajon, San Diego County. EIA reports 48.7 MW of nameplate capacity. Its FT8 SWIFTPAC configuration uses two combustion turbines driving one shared generator. The plant entered service in May 2002, and ownership transferred from CalPeak Power to SDG&E in January 2012.
Mapped infrastructure geometry associated with this asset.
EIA plant 55512 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| CPP6 | Natural Gas Fired Combustion Turbine | Operating | 48.7 | Unknown |
EIA’s August 2026 preliminary inventory lists generator CPP6 at 48.7 MW nameplate. SDG&E’s technical study describes two 25 MW FT8 combustion turbines connected to one generator; turbine design ratings and plant nameplate use different reporting bases.
Source: www.eia.gov exact-project record · as of 2026-08
A modeled depreciation life or a land-lease expiry does not establish a completed or confirmed plant retirement. EIA’s August 2026 inventory lists the generator as operating and contains no planned retirement month for it.
Source: www.eia.gov exact-project record · as of 2026-08
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CPP6 | 48.7 MW 48.7 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | May 2002 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
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Project milestones and public references behind the asset profile.
SDG&E made the El Cajon substation property available to CalPeak for the peaking plant. A land-lease agreement with a purchase option was entered into prior to construction, in response to California's 2000–2001 energy crisis.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Palomar Energy | 559 MW | CA | |
| Miramar Energy Facility | 106 MW | CA | |
| Cuyamaca Peak Energy PlantCurrent | 48.7 MW | CA | |
| Fallbrook Energy Storage | 40 MW | CA | |
| Top Gun Energy Storage | 30 MW | CA | |
| Melrose BESS | 20 MW | CA | |
| Elliott Energy Storage | 10 MW | CA | |
| Boulevard Energy Storage | 10 MW | CA |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA-860 lists generator CPP6 with this operating date.
The CalPeak El Cajon Energy Facility began commercial operations.
SDG&E filed Application A.11-01-004 with the California Public Utilities Commission to acquire the CalPeak El Cajon Energy Facility.
FERC issued Order Authorizing Disposition of Jurisdictional Facilities (Docket No. EC11-102-000) to permit SDG&E's acquisition of the facility and assignment of interconnection agreements and associated contracts.
Decision 11-12-002 authorized SDG&E to purchase the CalPeak El Cajon Energy Facility from CalPeak Power-El Cajon LLC, with total project costs capped at $16.8 million.
EIA reported the plant operating as Cuyamaca Peak Energy Plant, generator CPP6, with 48.7 MW nameplate and net summer capacity.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
EIA’s August 2026 preliminary inventory lists generator CPP6 at 48.7 MW nameplate. SDG&E’s technical study describes two 25 MW FT8 combustion turbines connected to one generator; turbine design ratings and plant nameplate use different reporting bases.
A modeled depreciation life or a land-lease expiry does not establish a completed or confirmed plant retirement. EIA’s August 2026 inventory lists the generator as operating and contains no planned retirement month for it.
Cuyamaca Peak Energy Plant reports 48.7 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Cuyamaca Peak Energy Plant is a Natural Gas Fired Combustion Turbine facility in San Diego County, CA, participating in the CAISO market.
Cuyamaca Peak Energy Plant is in San Diego County, CA, inside the CAISO balancing area.
Cuyamaca Peak Energy Plant is operated by San Diego Gas & Electric Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Cuyamaca Peak Energy Plant reported 5.9 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.
By capacity, Cuyamaca Peak Energy Plant ranks #532 of 829 operating plants of the same technology nationally. It ranks #72 of 136 in CA.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.