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300 MW BESS planned in Fresno, CA — California Independent System Operator
300 MW
Nameplate Capacity
3
Generators
units
Batteries
Technology
Planned: —
Planned Operation
Coordinates
36.1368, -120.1312
County
Fresno, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Key Energy Storage LLC | — | — |
| Owner(s) | Key Energy Storage LLC | — | — |
| Status | Planned | — | — |
Key Energy Storage, located in Fresno County, California, is a 300 MW battery energy storage system (BESS). The plant is owned and operated by Key Energy Storage LLC. It consists of 3 generators utilizing battery technology and ranks as the 32nd largest power plant in California out of 112, and 165th nationally out of 514. The plant's primary fuel is electricity (MWH), indicating it charges from the grid.
The facility operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. This means it participates in the CAISO wholesale electricity market, providing grid services such as frequency regulation and energy arbitrage.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
No generation data available for this plant.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $408.3M
Market Position
ISO/RTO Market
CAISO
LMP Node
FIFTHS_7_N003
Pricing Hub
TH_ZP26_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
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ask pi about Key Energy StorageCalifornia Independent System Operator (CISO)
Grid Voltage
500.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP