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40 MW Solar operating in Stanislaus, CA — California Independent System Operator
40 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2021
Operating Since
Coordinates
37.2477, -121.1118
County
Stanislaus, 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 | Central 40, LLC | Idemitsu Kosan | — |
| Owner(s) | Idemitsu Renewables | Idemitsu Kosan | — |
| Status | Operating | operating | — |
Central 40 is a 40 MW solar photovoltaic power plant located in Stanislaus County, California. The plant, which began operating in 2021, utilizes single-axis tracking technology. It is owned by Idemitsu Kosan, a Japanese company, and operated by Central 40, LLC. The plant's primary fuel source is solar energy (SUN), and it consists of one generator. Central 40 ranks as the 92nd largest solar plant in California out of 862, and 1237th nationally out of 7108.
The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In its latest year of operation, Central 40 generated 69,471 MWh of electricity, achieving a capacity factor of 19.8%. Financial data indicates a power purchase agreement (PPA) price of $28.83 per MWh.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
396 MWh
Latest Month
69.5K MWh
Annual Generation
19.8%
Capacity Factor
Central 40, LLC · Data from 2021–2025
$23.3/MWh
PPA Price
Market Position
ISO/RTO Market
CAISO
LMP Node
CENT403_7_N006
Pricing Hub
TH_NP15_GEN-APND
Alt. Hub / Zone
TH_ZP26_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
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ask pi about Central 40California Independent System Operator (CISO)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP