AES Huntington Beach LLC is a natural gas-fired power facility with 218 MW of EIA-reported nameplate capacity in Orange County, California, registered as EIA Plant ID 335. AES Huntington Beach LLC owns and operates the plant, a subsidiary of The AES Corporation. The plant's generating configuration is one Unit 2 natural-gas-fired steam-turbine/boiler generating unit and EIA codes NG/ST. Commercial operation began in 1958.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
AES Huntington Beach LLC · Orange County · CAISO
AES Huntington Beach LLC is currently operating; a closure or retirement is listed for December 31, 2026.
230 kV · Southern California Edison
Best-supported operating milestone.
Natural Gas Steam Turbine
AES Huntington Beach LLC is currently operating; a closure or retirement is listed for December 31, 2026.
AES Huntington Beach LLC is currently operating; a closure or retirement is listed for December 31, 2026.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 218 MW 225.8 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jun 1958 Retirement: Dec 2019 | Operating |
| 2 | 218 MW 225.8 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Dec 1958 Retirement: Dec 2026 | Operating |
| 3 | 225 MW 225 MW summer | Natural Gas Steam Turbine Natural Gas · ST | May 1961 Retirement: Dec 2020 | Operating |
| 4 | 227 MW 227 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jul 1961 |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
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Project milestones and public references behind the asset profile.
The California Public Utilities Commission records Units 1 and 2 of the Huntington Beach Generating Station as commercially operational in 1958; EIA plant 335 corresponds to the legacy Unit 2 resource.
230 kV · Southern California Edison
CAISO
CAISO · Orange County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
EIA-860 lists generator 1 with this operating date.
EIA-860 lists generator 2 with this operating date.
The same station history records Units 3 and 4 as commercially operational in 1960.
EIA-860 lists generator 3 with this operating date.
EIA-860 lists generator 4 with this operating date.
On or about May 1998, AES Huntington Beach acquired the Huntington Beach electricity-generation facility from Southern California Edison. The three-station AES purchase price was $781 million.
The CEC certified the Huntington Beach Generating Station retool project. AES retooled Units 3 and 4 with new natural-gas burners, burner-management systems, draft fans, and selective catalytic reduction equipment; these units had been out of service since 1995.
The CEC records August 7, 2003 as the commercial-operation date for the certified natural-gas-fired retool project.
AES obtained CEC approval to convert the retooled Units 3 and 4 to synchronous condensers to provide voltage support required for the Los Angeles Basin by CAISO.
AES closed approximately $2.0 billion of non-recourse financing for the broader Southland repowering project, which included replacement facilities at Huntington Beach, Alamitos, and Redondo Beach.
Unit 1 was retired approximately in December 2019 to facilitate first fire and commercial operation of the separate Huntington Beach Energy Project combined-cycle units.
The CEC records the separate 644 MW combined-cycle gas-turbine generator at the Huntington Beach Energy Project as beginning operation on June 25, 2020.
EIA-860 lists a planned retirement for generator 3, generator 4.
The CEC records an extension allowing legacy Unit 2 to operate through the end of 2023 in support of peak demand; no definitive later retirement date is established in the cited record.
EIA-860 lists a planned retirement for generator 2.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
AES Huntington Beach LLC has a reported capacity of 218 MW. Source: EIA Form 860.
AES Huntington Beach LLC is a Natural Gas Steam Turbine facility in Orange County, CA, participating in the CAISO market.
AES Huntington Beach LLC is in Orange County, CA, inside the CAISO balancing area.
AES Huntington Beach LLC is operated by AES Huntington Beach LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
AES Huntington Beach LLC reports a commercial operation date of 1958. Current status: operating. Source: EIA Form 860.
AES Huntington Beach LLC reported 4.9 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
AES Huntington Beach LLC interconnects at Huntington Beach Switching Station (HUNTGBCH bus 24069), on the Southern California Edison system.
By capacity, AES Huntington Beach LLC ranks #34 of 257 operating plants of the same technology nationally. It ranks #3 of 7 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.
