Paradise Energy Storage
San Diego Gas & Electric CompanySan Diego County
Paradise Energy Storage is an SDG&E-owned battery microgrid at Paradise Substation in San Diego’s Skyline community. SDG&E’s August 2024 financing report describes 10 MW / 40 MWh; the August 2026 EIA inventory records 10 MW / 10 MWh and an operating start in March 2024. The earlier CPUC-approved design specified 50.5 MWh at beginning of life and 40 MWh at end of life. Each figure retains its source and reporting basis.
Mapped infrastructure geometry associated with this asset.
EIA plant 66265 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 1 | Batteries | Operating | 10 | 10 |
SDG&E’s August 2024 report describes 40 MWh. Its earlier CPUC-approved design specified 50.5 MWh at beginning of life and 40 MWh at end of life. The August 2026 EIA inventory separately reports 10 MWh of nameplate energy.
Source: SDG&E August 2024 Sustainable Financing Report · as of 2024-08-09
The August 2026 EIA operating inventory records March 2024, consistent with the completion month in SDG&E’s August 2024 report. June 8, 2023 was the estimated commercial-operation date in the 2022 CPUC approval.
Source: EIA August 2026 operating generator inventory · as of 2026-08
The CPUC describes Paradise circuit 320 as a project intended to support Fire Stations 51 and 32, the Southeast Division Police Department and local schools during outages, alongside normal-market grid services.
Source: CPUC Resolution E-5219 · as of 2022-06-23
Similar plants ranked by technology, capacity, and distance.
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.
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 California Public Utilities Commission issued Decision D.21-12-004 directing SDG&E to develop up to four utility-owned circuit-level energy-storage microgrid projects to provide peak and net-peak grid reliability benefits starting in the summers of 2022 and/or 2023.
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 Storage | 10 MW | CA |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioThe California Public Utilities Commission approved Resolution E-5219, authorizing SDG&E to enter into Equipment Supply Agreements and Long-Term Services Agreements with Mitsubishi Power America, Inc. and Balance-of-Plant agreements with Morrow Meadows Corporation for the four-project microgrid program, including Paradise C320.
The June 2022 CPUC approval listed June 8, 2023 as an estimated commercial-operation date. This source is a planning record, not confirmation that the target was achieved.
FERC MBR plant-registry entry for Paradise Energy Storage, plant code 66265. This administrative registration is distinct from the March 2024 operating month reported in the August 2026 EIA inventory.
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.
SDG&E’s August 2024 report describes 40 MWh. Its earlier CPUC-approved design specified 50.5 MWh at beginning of life and 40 MWh at end of life. The August 2026 EIA inventory separately reports 10 MWh of nameplate energy.
The August 2026 EIA operating inventory records March 2024, consistent with the completion month in SDG&E’s August 2024 report. June 8, 2023 was the estimated commercial-operation date in the 2022 CPUC approval.
The CPUC describes Paradise circuit 320 as a project intended to support Fire Stations 51 and 32, the Southeast Division Police Department and local schools during outages, alongside normal-market grid services.
Paradise Energy Storage reports 10 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Paradise Energy Storage is a batteries facility in San Diego County, CA, participating in the CAISO market.
Paradise Energy Storage is in San Diego County, CA, inside the CAISO balancing area.
Paradise 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.
Paradise Energy Storage reports a commercial operation date of 2024-03. Current status: operating. Source: EIA Aug 2026.
Paradise Energy Storage reported 7 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, Paradise 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.