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99.4 MW BESS operating in Kings, CA — California Independent System Operator
99.4 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Coordinates
36.2695, -119.6487
County
Kings, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Hanford BESS LLC | — | — |
| Owner(s) | Hanford BESS LLC | — | — |
| Status | Operating | — | — |
Lead BESS 1 is a 99.4 MW battery energy storage system located in Kings County, California. The plant began operating in 2025 and is owned and operated by Hanford BESS LLC. It consists of a single generator utilizing battery technology with a duration of 1 hour. The plant's primary fuel source is electricity (MWH).
Lead BESS 1 operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. It is ranked as the 115th largest power plant in California out of 300, and nationally it is ranked 516th out of 1205.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
−72 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: $135.3M
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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ask pi about Lead BESS 1California Independent System Operator (CISO)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP