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475 MW Batteries (225 MW) + Solar Photovoltaic (250 MW) operating in Kings, CA — California Independent System Operator
475 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Coordinates
36.1740, -119.9043
County
Kings, CA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Westlands Solar Blue | Westland Holdings | — |
| Owner(s) | Westlands Solar Blue (OZ) Owner, LLC | CIM Group; Westland Holdings Inc | — |
| Status | Operating | operating | — |
GEM identifies the owner as CIM Group; Westland Holdings Inc
This entity is not yet in the GEM ownership database — chain unavailable.
Solar Blue is a 475 MW hybrid power plant located in Kings County, California. The facility, which began operating in 2023, is owned and operated by Westlands Solar Blue (OZ) Owner, LLC. The plant utilizes both solar photovoltaic technology and batteries, with single-axis solar tracking. The battery energy storage system (BESS) has a capacity of 900 MWh and a duration of 4 hours, employing lithium-ion battery chemistry (LIB). Solar Blue operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The plant's primary fuel source is electricity (MWH). In its latest year of operation, Solar Blue generated 652,177 MWh, achieving a capacity factor of 15.7%. Financial data indicates a power purchase agreement (PPA) price of $83.33 per MWh. Solar Blue is ranked as the 10th largest solar facility out of 112 in California, and 72nd out of 514 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
9.1K MWh
Latest Month
652.2K MWh
Annual Generation
15.7%
Capacity Factor
Westlands Solar Blue (OZ) Owner, LLC · Data from 2023–2025
$83.3/MWh
PPA Price
Market Position
ISO/RTO Market
CAISO
LMP Node
SOLBLU_7_NBT1
Pricing Hub
TH_ZP26_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
View all articlesCalifornia Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
—
Sector
IPP Non-CHP