Fallbrook Energy Storage — Plant Summary
- EIA Plant ID
- 61365
- Capacity
- 40 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- San Diego, CA
- Operating Since
- 2023
- Generators
- 1
- Operator
- San Diego Gas & Electric Co
- Parent Company
- Sempra Energy
- Annual Generation
- -8,636 MWh
- Capacity Factor
- -2.5%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Fallbrook Energy Storage
OperatingBESS
Ranked #97 of 191 BESS plants in CA#424 of 837 nationally
40 MW BESS operating in San Diego, CA — California Independent System Operator
EIA
40 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2023
Operating Since
Location
Coordinates
33.3842, -117.2353
County
San Diego, CA
Nearby Plants
- Red MountainHydro5.9 MW · 4.5 km
- Pala Energy Storage YardBESS1 MW · 11.7 km
- Orange Grove Peaking FacilityNatural Gas118 MW · 11.8 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | San Diego Gas & Electric Co | San Diego Gas & Electric | — |
| Owner(s) | San Diego Gas & Electric Co | Sempra Energy | — |
| Status | Operating | — | — |
Ownership Chain
About
Fallbrook Energy Storage is a 40 MW battery energy storage system located in San Diego County, California. The plant began operating in 2023 and is owned by Sempra Energy, with San Diego Gas & Electric Co. (SDG&E) as the operator. The facility utilizes lithium-ion batteries (LIB) and has a total storage capacity of 40 MWh, providing a duration of 1 hour. Fallbrook Energy Storage is currently ranked as the 163rd largest power plant in California out of 300, and 633rd nationally out of 1205.
The plant connects to the California Independent System Operator (CAISO) balancing authority, within the Western Electricity Coordinating Council (WECC) NERC region. As a battery storage facility, its primary fuel is electricity (MWH). The plant consists of one generator utilizing battery technology.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
69 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Interconnection Queue1 projectBeta
CHAPARREL STORAGE
WithdrawnBattery50 MWCAISO
Generation
−872 MWh
Net Charging
-8.6K MWh
Annual Net Energy
-2.5%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Avocado
Substation Distance
0.158 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
AVOCADO_6_N001
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
News & Articles (10)Beta
Industry·corporate
California: SDG&E commissions 171MW of BESS, Ameresco enlisted for 379MWh of projects
California utility SDG&E has turned 171MW of battery storage online while Ameresco has won contracts to deploy 379MWh in the state.
SDG&E (operator)Ameresco (operator)
Energy-Storage.News·2 years ago
Industry·corporate
SDG&E Completes Large Energy Storage Facilities in Fallbrook and Imperial Valley
San Diego Gas & Electric has finished two energy storage facilities totaling 171 megawatts in Fallbrook and Imperial Valley,...
SDG&E (operator)
Times of San Diego·2 years ago
Industry·corporate
SDG&E adds two more energy storage facilities to strengthen summer grid reliability and advance clean energy goals
In recent years, SDG&E has more than doubled its utility-owned energy storage capacity. SAN DIEGO, July 6, 2023 /PRNewswire/ -- As part of...
SDG&E (operator)
Sempra·2 years ago
Industry·corporate
Active grid-scale energy storage projects across the U.S.
Energy storage supports a grid increasingly defined by renewable energy. pv magazine USA recaps three recent project updates in grid-scale...
US (other)
pv magazine USA·2 years ago
Last updated 2026-03-14
View all 10 articles