Coso Battery Storage — Plant Summary
- EIA Plant ID
- 63943
- Capacity
- 60 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Inyo, CA
- Operating Since
- 2022
- Generators
- 1
- Operator
- Arevon Asset Management
- Parent Company
- Capital Dynamics Holding
- Annual Generation
- -14,213 MWh
- Capacity Factor
- -2.7%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Coso Battery Storage
OperatingBESS
Ranked #81 of 191 BESS plants in CA#381 of 837 nationally
60 MW BESS operating in Inyo, CA — California Independent System Operator
EIAWD
60 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2022
Operating Since
Location
Coordinates
36.0069, -117.8106
County
Inyo, CA
Nearby Plants
- Mordor ES1BESS25 MW · 0.4 km
- Mordor ES2BESS20 MW · 0.4 km
- Coso Energy DevelopersGeothermal90 MW · 2.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Arevon Asset Management | Capital Dynamics | — |
| Owner(s) | Capital Dynamics, John Hancock | Capital Dynamics Holding | — |
| Status | Operating | — | — |
Ownership Chain
About
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
Engineering & Generators
Grid Context
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
Generation
−963 MWh
Net Charging
-14.2K MWh
Annual Net Energy
-2.7%
Capacity Factor
Jan 2023 – Dec 2025
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
MEDIUM confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_ZP26_GEN-APND
Node Source
Shared substation inference
SUNGEN_1_B1Nearby ISO Node
News & Articles (10)Beta
Hazards·extreme heat
Heat Advisory: Owens Valley; Esmeralda and Central Nye County; Lincoln County
Heat Advisory issued March 21 at 2:16AM PDT until March 21 at 8:00PM PDT by NWS Las Vegas NV
NWS Las Vegas NV·5 days ago
Industry·technology
XGS Energy says its advanced geothermal tech is ready to scale up
The startup successfully operated a geothermal system for over 3000 hours. The results should help it finance its first commercial deal: a...
XGS Energy (operator)
Canary Media·5 months ago
Industry·technology
In the shadow of wind and solar, geothermal energy gets a fresh look
Until recently, a niche energy source limited to hot springs The Coso geothermal field in Inyo County, California has been generating...
Coso geothermal field (operator)
Stanford University·1 years ago
Grid·capacity addition
MASSIVE BATTERY FARM IN WORKS FOR SJ COUNTY
A battery energy storage complex that could provide the energy needs of 300000 homes concurrently is being proposed 22 miles to the...
Manteca Bulletin·2 years ago
Last updated 2026-03-21
View all 10 articles