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60 MW BESS operating in Inyo, CA — California Independent System Operator
60 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2022
Operating Since
Coordinates
36.0069, -117.8106
County
Inyo, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arevon Asset Management | Capital Dynamics | — |
| Owner(s) | Capital Dynamics, John Hancock | Capital Dynamics Holding | — |
| Status | Operating | — | — |
Coso Battery Storage is a 60 MW battery energy storage system located in Inyo County, California. The plant began operating in 2022 and is owned by Capital Dynamics Holding, a company based in Switzerland. Arevon Asset Management is the listed operator per EIA data. The facility utilizes batteries as its primary fuel source (MWH) and consists of a single generator. The battery energy storage system (BESS) has a total storage capacity of 240 MWh, providing a duration of 4 hours. The battery chemistry is lithium-ion (LIB).
Coso Battery Storage operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. The plant is ranked 146th out of 300 power plants in California and 582nd out of 1205 plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
California Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
−963 MWh
Net Charging
-14.2K MWh
Annual Net Energy
-2.7%
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.
2022
$1,205/kW
Est. Construction Cost
Total estimated cost: $72.3M
Market Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_ZP26_GEN-APND
Node Source
Shared substation inference
Last updated 2026-03-26
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