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100 MW BESS operating in Los Angeles, CA — California Independent System Operator
100 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
33.9559, -118.2321
County
Los Angeles, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Cald BESS LLC | — | — |
| Owner(s) | Cald BESS LLC | — | — |
| Status | Operating | — | — |
Cald BESS is a 100 MW battery energy storage system located in Los Angeles County, California. The plant began operating in 2024 and has one generator. It is owned and operated by Cald BESS LLC. The facility utilizes lithium-ion batteries (LIB) and has a total storage capacity of 400 MWh, providing a duration of 4 hours. The plant's primary fuel is electricity (MWH), indicating it charges from the grid.
Cald BESS operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. It is ranked as the 106th largest power plant in California out of 112, and nationally it is ranked 508th out of 514.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
−1.7K MWh
Net Charging
-19.3K MWh
Annual Net Energy
-2.2%
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.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $136.1M
Market Position
ISO/RTO Market
CAISO
LMP Node
CEN_SUB_LNODEONC
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
View all articlesNo ask pi reports yet for this entity.
ask pi about Cald BESSCalifornia Independent System Operator (CISO)
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP