148.7 MW Solar operating in Imperial, CA — California Independent System Operator
148.7 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2016
Operating Since
Coordinates
32.7722, -115.7793
County
Imperial, 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 | CSOLAR IV West LLC | First Solar | — |
| Owner(s) | CD Global II CSOLAR, LLC, Tenaska CSOLAR West Holdings, LLC, Tenaska CSOLAR West, LLC | Tenaska Energy | — |
| Status | Operating | operating | — |
The Tenaska Imperial Solar Energy Center West is a 150 megawatt (MW) photovoltaic power plant built in Imperial County, California. Construction began in 2014 and full commercial operation was achieved in September 2016. Power is sold to San Diego Gas & Electric on a 25-year agreement.
Read more on WikipediaImperial Solar Energy Center West is a 148.7 MW solar photovoltaic power plant located in Imperial County, California. The plant, which began operating in 2016, utilizes single-axis tracking technology. It is owned by Tenaska Energy and operated by CSOLAR IV West LLC. The plant connects to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In its most recent year of operation, Imperial Solar Energy Center West generated 373,638 MWh of electricity, achieving a capacity factor of 28.6%. The plant ranks 35th out of 59 solar plants in California and 419th nationally out of 639 plants. Financial data indicates a power purchase agreement (PPA) price of $105.99 per MWh.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
20.1K MWh
Latest Month
373.6K MWh
Annual Generation
28.6%
Capacity Factor
$55.5/MWh
LCOE (Levelized Cost)
$106.0/MWh
PPA Price
$11.1/MWh
Energy Value
Market Position
ISO/RTO Market
CAISO
LMP Node
IVWEST_2_SOLAR1-APND
Pricing Hub
TH_SP15_GEN-APND
Location Type
Aggregated Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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