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20.2 MW Solar operating in Tulare, CA — California Independent System Operator
20.2 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2013
Operating Since
Coordinates
35.8154, -119.4511
County
Tulare, 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 | SPS Atwell Island LLC | SPS Atwell | — |
| Owner(s) | Atwell Solar Trust 2012 | SunEdison Inc | — |
| Status | Operating | operating | — |
GEM identifies the owner as SunEdison Inc
This entity is not yet in the GEM ownership database — chain unavailable.
Atwell Island is a 20.2 MW solar photovoltaic power plant located in Tulare County, California. The plant began operating in 2013 and has one generator. It is owned and operated by SPS Atwell Island LLC. The plant utilizes a fixed-tilt solar tracking system. Atwell Island is connected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year of data, Atwell Island generated 33,268 MWh of electricity, achieving a capacity factor of 18.8%. The plant ranks 112th in size among California's 862 power plants and 1349th nationally out of 7108 plants. Financial data is available for Atwell Island from LBNL, though specific metrics are not provided.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
1.3K MWh
Latest Month
33.3K MWh
Annual Generation
18.8%
Capacity Factor
Data from 2013–2024
$6.0/MWh
Energy Value
$13.0/MWh
Capacity Value
Market Position
ISO/RTO Market
CAISO
LMP Node
ATWELL_1_N001
Pricing Hub
TH_ZP26_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
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No ask pi reports yet for this entity.
ask pi about Atwell IslandCalifornia Independent System Operator (CISO)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP