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98 MW BESS operating in Kern, CA — California Independent System Operator
98 MW
Nameplate Capacity
2
Generators
units
Batteries
Technology
2025
Operating Since
Coordinates
35.7674, -119.8945
County
Kern, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idemitsu Renewables | — | — |
| Owner(s) | Idemitsu Renewables | — | — |
| Status | Operating | — | — |
SF Azalea, LLC is a 60 MW battery energy storage system located in Kern County, California. The plant, identified by plant ID 66890, is operated by Idemitsu Renewables. It consists of a single generator utilizing batteries as its energy source. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
SF Azalea, LLC is ranked as the 147th largest power plant in California out of 300 plants, and nationally it is ranked 578th out of 1205 plants. Recent news indicates activity related to deals involving the plant.
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 MWh
Net Charging
—
Annual Net Energy
—
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: $133.4M
Market Position
ISO/RTO Market
CAISO
LMP Node
LSTHLLS_6_N001
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 SF Azalea, LLCCalifornia Independent System Operator (CISO)
Grid Voltage
70.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP