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47 MW Batteries (23 MW) + Solar Photovoltaic (24 MW) under construction in Kern, CA
47 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
—
Operating Since
Coordinates
34.8417, -118.4551
County
Kern, CA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Solar Star 4, LLC | — | — |
| Owner(s) | Solar Star 4, LLC | — | — |
| Status | Under construction | construction | — |
Solar Star 4 is a hybrid power plant located in Kern County, California. The facility has a total capacity of 47 MW and is operated by Solar Star 4, LLC. The plant utilizes both battery storage and solar photovoltaic technologies, with electricity as its primary fuel source. It consists of two generators employing a fixed tilt solar tracking system.
The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Solar Star 4 ranks as the 160th largest power plant in California out of 300, and nationally it is ranked 621 out of 1205 facilities. Recent news coverage related to the plant includes 7 articles on industry topics, 2 on deals, and 1 on regulatory matters.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
California Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $64.0M
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Market Position
ISO/RTO Market
CAISO
LMP Node
POD_ASTORA_2_SOLAR2-APND
Pricing Hub
TH_SP15_GEN-APND
Location Type
Aggregated Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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