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59.5 MW BESS planned in Fresno, CA — California Independent System Operator
59.5 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
Planned: —
Planned Operation
Coordinates
36.6527, -120.5783
County
Fresno, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Panoche BESS LLC | — | — |
| Owner(s) | Panoche BESS LLC | — | — |
| Status | Planned | — | — |
Iron BESS is a 59.5 MW battery energy storage system located in Fresno County, California. The plant is owned and operated by Panoche BESS LLC. It utilizes batteries as its primary technology and MWH as its fuel source. The plant has one generator.
Iron 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 150th largest power plant in California out of 300, and nationally it is ranked 592nd out of 1205. Recent news articles about the plant have focused on deals and hazards.
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: $81.0M
Point of Interconnection
Nearest Substation
Panoche Substation · 230 kV
Substation Distance
< 10 km
Operator
Pacific Gas and Electric Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
np15
Pricing Hub
TH_ZP26_GEN-APND
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Iron BESSCalifornia Independent System Operator (CISO)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP