Boulevard Energy Storage
San Diego Gas & Electric CompanySan Diego County
Boulevard Energy Storage is SDG&E’s battery microgrid at Boulevard Substation in eastern San Diego County. The August 2026 EIA inventory records 10 MW / 10 MWh and an operating start in March 2024. The CPUC’s 2022 approved design separately specifies 10 MW with 50.5 MWh at beginning of life and 40 MWh at end of life. Boulevard circuit 445 was designed to support local critical facilities while also contributing capacity to CAISO.
EIA plant 66279 · Inventory reporting month unavailable.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 1 | Batteries | Operating | 10 | Unknown |
San Diego Gas & Electric owns and operates Boulevard Energy Storage. The EIA August 2026 inventory identifies SDG&E as the operating utility and reports the 10 MW generator as operating.
Source: EIA August 2026 operating generator inventory · as of 2026-08
The August 2026 EIA inventory reports 10 MWh of nameplate energy. The CPUC’s 2022 design approval specifies 50.5 MWh at beginning of life and 40 MWh at end of life. These separate reporting bases do not establish present usable energy or state of charge.
Source: CPUC Resolution E-5219 · as of 2022-06-23
The August 2026 EIA operating inventory records March 2024. May 1, 2023 in the CPUC’s 2022 project table was an estimated commercial-operation date, rather than confirmation of completed construction.
Source: EIA August 2026 operating generator inventory · as of 2026-08
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Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 10 MW 10 MW summer | Batteries Electricity used for energy storage · BA | Mar 2024 | 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.
Boulevard was originally proposed as part of SDG&E's A.18-02-016 application for microgrid projects.
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.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Palomar Energy | 559 MW | CA | |
| Miramar Energy Facility | 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 | |
| Elliott Energy Storage | 10 MW | CA | |
| Boulevard Energy StorageCurrent | 10 MW | CA |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioDecision D.19-06-032 denied the A.18-02-016 application without prejudice, allowing for later resubmission.
Governor Newsom issued a Proclamation of State of Emergency requesting acceleration of clean energy and storage projects to address capacity shortages and grid reliability through October 2022.
Decision D.21-12-004 directed SDG&E to develop up to four utility-owned circuit-level energy storage microgrid projects, including Boulevard, with commercial operation by August 1, 2023, to address 2023 summer reliability needs and provide peak/net-peak grid reliability benefits, islanding and resiliency capabilities, and CAISO market participation with cost recovery via the Cost Allocation Mechanism.
SDG&E scheduled construction to commence in July 2022 with an estimated duration of approximately 12 months.
Mitsubishi Power announced that SDG&E had ordered Emerald storage solutions for four utility-scale BESS projects totaling 39 MW / 180 MWh, including Boulevard. The 39 MW / 180 MWh total covers all four projects, not Boulevard alone.
The official August 2026 EIA operating inventory records the battery as operating with a March 2024 operating start.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
San Diego Gas & Electric owns and operates Boulevard Energy Storage. The EIA August 2026 inventory identifies SDG&E as the operating utility and reports the 10 MW generator as operating.
The August 2026 EIA inventory reports 10 MWh of nameplate energy. The CPUC’s 2022 design approval specifies 50.5 MWh at beginning of life and 40 MWh at end of life. These separate reporting bases do not establish present usable energy or state of charge.
The August 2026 EIA operating inventory records March 2024. May 1, 2023 in the CPUC’s 2022 project table was an estimated commercial-operation date, rather than confirmation of completed construction.
Boulevard Energy Storage reports 10 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Form 860M.
Boulevard Energy Storage is a batteries facility in San Diego County, CA, participating in the CAISO market.
Boulevard Energy Storage is in San Diego County, CA, inside the CAISO balancing area.
Boulevard Energy Storage is operated by San Diego Gas & Electric Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Boulevard Energy Storage reports a commercial operation date of 2024-03. Current status: operating. Source: EIA Form 860M.
Boulevard Energy Storage reported 5 GWh over the twelve months to 2024-12. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.
By capacity, Boulevard Energy Storage ranks #488 of 1,061 operating plants of the same technology nationally. It ranks #154 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.