99.7 MW BESS operating in San Luis Obispo, CA — California Independent System Operator
99.7 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Coordinates
35.0064, -120.4537
County
San Luis Obispo, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Caballero CA Storage LLC | — | — |
| Owner(s) | Caballero CA Storage LLC | — | — |
| Status | Operating | — | — |
Caballero is a 99.7 MW battery energy storage system (BESS) located in San Luis Obispo County, California. The facility, which began operating in 2025, is owned and operated by Caballero CA Storage LLC. It consists of a single generator utilizing battery technology with a storage duration of 4 hours. The plant is connected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
The Caballero facility is ranked as the 113th largest power plant in California out of 300, and 515th nationally out of 1205. News coverage of the plant includes 4 articles related to regulatory matters, 3 related to grid issues, and 3 covering industry topics.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
CABALLERO STORAGE
−1.6K MWh
Net Charging
-17.1K MWh
Annual Net Energy
-2.6%
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.
No financial data available for this plant.
Market Position
ISO/RTO Market
CAISO
LMP Node
MESA-PGE_1_N036
Pricing Hub
TH_ZP26_GEN-APND
Secondary Zone
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
A New Study Links Living Near Nuclear Plants to Higher Cancer Death Rates
A nationwide analysis found that counties closer to nuclear power plants have higher cancer mortality rates.
Trump-backed gas plant could become biggest U.S. power polluter
The new proposed power plant in Ohio could produce similar emissions to the James H. Miller Jr. coal-fired plant in Alabama of about 16.6...
Defunded by Trump, California’s clean energy hopes reach a crossroads in Los Angeles
The Trump Administration pulled $1.2 billion California's clean energy funding. Los Angeles still wants to retrofit Scattergood for...
Newsom killed 123 bills this year. Here’s what his vetoes say about power in Sacramento
Keeping up with your California representatives felt impossible before. Now you can watch them like a hawk: Sign up for My Legislator,...
Last updated 2026-03-26
View all 10 articles