Arlington Energy Center III
Arlington Energy Center III, LLCRiverside County
Arlington Energy Center III is a hybrid solar and battery storage facility with 241 MW of EIA-reported total operating capacity and 440 MWh of reported storage energy capacity in Riverside County, California, registered as EIA Plant ID 64564. Arlington Energy Center III owns and operates the plant. Its grid role is hybrid solar photovoltaic generation with co-located battery storage; the battery is identified as supporting ramping and spinning reserve and absorbing excess wind and solar generation.
Mapped infrastructure geometry associated with this asset.
Batteries, Solar Photovoltaic
4-hour storage duration
Arlington Energy Center III is operating.
220 kV · Southern California Edison Co
EIA plant 64564 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| AEC3 | Solar Photovoltaic | Operating | 131 | Unknown |
| AEC3B | Batteries | Operating | 110 | 440 |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| AEC3 | 131 MW 131 MW summer | Solar Photovoltaic PV | Aug 2022 | Operating |
| AEC3B | 110 MW 110 MW summer | Batteries BA | Aug 2022 | Operating |
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.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Project milestones and public references behind the asset profile.
EIA-860 lists generator AEC3, generator AEC3B with this operating date.
CAISO
CAISO · Riverside 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.
CAISO announced the allocation of the $381,724 disgorgement associated with Arlington Energy Center III, LLC under FERC docket IN24-10-000.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Arlington Energy Center III reports 131 MW solar + 110 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Arlington Energy Center III is a Batteries, Solar Photovoltaic facility in Riverside County, CA, participating in the CAISO market.
Arlington Energy Center III is in Riverside County, CA, inside the CAISO balancing area.
Arlington Energy Center III is operated by Arlington Energy Center III according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Arlington Energy Center III reported 329.9 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Arlington Energy Center III interconnects at Colorado River Substation, on the Southern California Edison Co system.
By capacity, Arlington Energy Center III ranks #390 of 7,597 operating plants of the same technology nationally. It ranks #67 of 972 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.