Diablo Energy Storage is a battery energy storage facility with 200 MW of EIA-reported operating capacity and 800 MWh of reported energy capacity in Contra Costa County, California, registered as EIA Plant ID 62175. Diablo Energy Storage, LLC is the registered plant entity or operator. The facility interconnects at Pittsburg 230 kV Substation at 230 kV. Its grid role is transmission-connected, stand-alone lithium-ion battery energy-storage resource procured under PG&E system-reliability agreements, with a four-hour discharge duration.
Mapped infrastructure geometry associated with this asset.
Batteries
4-hour storage duration
Diablo Energy Storage is operating.
CAISO
EIA plant 62175 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| DIBLO | Batteries | Operating | 200 | 800 |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| DIBLO | 200 MW 200 MW summer | Batteries BA | Apr 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.
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Project milestones and public references behind the asset profile.
The WECC progress report identifies November 16, 2017 as the date the Diablo interconnection agreement was executed.
CAISO · Contra Costa County
EIA-923 reports gross generation and net grid exchange for storage plants. Gross generation is shown as a discharge proxy; it is not a cycle count or conventional capacity factor.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
The City of Pittsburg issued a notice of intent for a battery storage project on an approximately 12-acre vacant site at 701 Willow Pass Road, with up to three buildings proposed.
PG&E disclosed three 15-year agreements with Diablo Energy Storage, LLC, each for 50 MW, totaling 150 MW; the public filing identified an initial delivery date of October 1, 2021.
The owners contributed their interests in the battery storage facilities to REV Renewables, LLC as part of the formation and capitalization of the REV platform.
EIA-860 lists generator DIBLO with this operating date.
Diablo Energy Storage entered commercial operation.
Fluence filed a complaint concerning the supply and construction of the energy storage facility; Diablo later filed a cross-complaint seeking damages and recovery of amounts paid.
Diablo Energy Storage, LLC filed a cross-complaint alleging defects, deficiencies, and failures and seeking at least $25 million in damages plus disgorgement of compensation paid to Fluence.
WECC listed December 31, 2026 as the expected final-completion date, while noting that final completion had not yet been achieved because of the EPC litigation.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Diablo Energy Storage reports 200 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Diablo Energy Storage is a batteries facility in Contra Costa County, CA, participating in the CAISO market.
Diablo Energy Storage is in Contra Costa County, CA, inside the CAISO balancing area.
Diablo Energy Storage is operated by Diablo Energy Storage, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Diablo Energy Storage reported 190.7 GWh over the twelve months to 2026-07. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.
Diablo Energy Storage interconnects at Pittsburg 230 kV Substation.
By capacity, Diablo Energy Storage ranks #58 of 1,061 operating plants of the same technology nationally. It ranks #15 of 272 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.