Miramar Energy Facility — 106 MW gas plant, CA

Miramar Energy Facility — 106 MW gas plant, CA · Ask the Grid

Generation and physical site

EIA plant 56232 · Inventory for Aug 2026.

Reported operating nameplate by technology

Natural gas: 106 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (2)

EIA generator status and nameplate capacity for Miramar Energy Facility
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Natural Gas Fired Combustion Turbine	Operating	53	Unknown
2	Natural Gas Fired Combustion Turbine	Operating	53	Unknown

Physical map location · OpenStreetMap: 32.87626, -117.16551
Filed location · EIA: 32.87690, -117.16640

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Aug 2026
EIA retrieved: Oct 10, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Jun 27, 2022
Map prepared: Oct 10, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	53 MW 47 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jun 2005	Operating
2	53 MW 47 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Aug 2009	Operating

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

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AssetOwner / operatorEquipmentContractor

Parties and identifiers

OrganizationRoleBasis

San Diego Gas & Electric CompanyOwner / operatorOwner and operator Ramco Generating One, Inc.Former owner / developer / construction contractorMEF I developer, constructor, and turnkey seller

Reporting portfolio

EIA reporting entity

San Diego Gas & Electric Co

Entity 16609

Operating portfolio

17 plants

1 states

Reported capacity

902.8 MW

Batteries · Natural Gas Fired Combined Cycle · Natural Gas Fired Combustion Turbine

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Palomar Energy	559 MW	CA
Miramar Energy FacilityCurrent	106 MW	CA
Cuyamaca Peak Energy Plant	48.7 MW	CA
Fallbrook Energy Storage	40 MW	CA
Top Gun Energy Storage	30 MW	CA
Melrose BESS	20 MW	CA

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

May 16, 2003
May 16, 2003
RFP issued for combustion-turbine grid-reliability projectsdocs.cpuc.c...
SDG&E issued a Request for Proposals (RFP) for grid-reliability projects to address a projected capacity shortage beginning in 2005.
Jun 15, 2004
Jun 15, 2004
CPUC approves Ramco Term Sheet for MEF Idocs.cpuc.c...
The CPUC approved the Term Sheet between SDG&E and Ramco whereby Ramco agreed to design, permit, construct and sell to SDG&E on a turnkey basis a 45 MW (later revised to 46 MW) LM6000 combustion turbine for MEF I.
Oct 28, 2004
Oct 28, 2004
CPUC approves lease agreement for MEF I site controldocs.cpuc.c...
The CPUC approved SDG&E's lease of part of its Miramar property to Ramco to enable Ramco to obtain lender financing, construct the facility, and sell it to SDG&E under the turnkey acquisition structure.
View 2 more milestonesHide 2 milestones
1. Jan 27, 2005
  Jan 27, 2005
  MEF I Turnkey Acquisition Agreement approved; purchase price setdocs.cpuc.c...
  The CPUC approved SDG&E's Turnkey Acquisition Agreement with Ramco. The negotiated base purchase price was $31.458 million, subject to adjustments estimated at approximately $642,000 in Ramco interest costs and up to $700,000 in legal and engineering change orders, for an estimated total of approximately $32.1 million.
2. Jun 2005
Jul 2005
Jul 2005
MEF I ownership transfer and commercial operationdocs.cpuc.c...
SDG&E took ownership of the completed MEF I turbine facility from Ramco and assumed full operation and control.
Jun 16, 2008
Jun 16, 2008
MEF II application filed with CPUCdocs.cpuc.c...
SDG&E filed Application 08-06-017 with the CPUC for expedited approval of the MEF II project.
Aug 2009
Aug 2009
MEF II commercial operation and transfer to SDG&E operationsdge.com
MEF II completed construction and commenced commercial operation. SDG&E became the responsible owner and operator of the facility.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

api.eia.govapi.eia.govauthoritative

Common questions about Miramar Energy Facility

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Miramar Energy Facility?

Miramar Energy Facility reports 106 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Miramar Energy Facility?

Miramar Energy Facility is a Natural Gas Fired Combustion Turbine facility in San Diego County, CA, participating in the CAISO market.

Where is Miramar Energy Facility located?

Miramar Energy Facility is in San Diego County, CA, inside the CAISO balancing area.

Who operates Miramar Energy Facility?

Miramar Energy Facility is operated by San Diego Gas & Electric Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Miramar Energy Facility generate?

Miramar Energy Facility reported 12.1 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Miramar Energy Facility compare to other plants?

By capacity, Miramar Energy Facility ranks #365 of 829 operating plants of the same technology nationally. It ranks #27 of 136 in CA.

Co-located assets

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.

Top Gun Energy StorageBatteriesBatteries30 MW214 m AT&T - San Diego Trade StreetOther Natural GasOther Natural Gas · same type1 MW1.3 km Illumina Way SDOther Natural GasOther Natural Gas · same type4 MW3.2 km MM San Diego-MiramarLandfill GasLandfill Gas

Overview

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Overview

Infrastructure record

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