280 MW Solar operating in Maricopa, AZ — Arizona Public Service Company
280 MW
Nameplate Capacity
2
Generators
units
Solar Thermal with Energy Storage
Technology
2013
Operating Since
Coordinates
32.9223, -112.9559
County
Maricopa, AZ
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 | Arizona Solar One LLC | Atlantica Sustainable Infrastructure | — |
| Owner(s) | Arizona Solar One LLC | Atlantica Sustainable Infrastructure | — |
| Status | Operating | operating | — |
The Solana Generating Station is a solar power plant near Gila Bend, Arizona, about 70 miles (110 km) southwest of Phoenix. It was completed in 2013. When commissioned, it was the largest parabolic trough plant in the world, and the first U.S. solar plant with molten salt thermal energy storage. Built by the Spanish company Abengoa Solar, the project can produce up to 280 megawatts (MW) gross, supplied by two 140 MW gross (125 MW net) steam turbine generators: enough electricity to meet the needs of approximately 70,000 homes and obviate the emission of roughly 475,000 tons of CO2 every year. Its name is the Spanish term for "sunny spot".
Read more on WikipediaSolana Generating Station is a 280 MW solar thermal power plant located in Maricopa County, Arizona. The plant, which began operating in 2013, is owned by Atlantica Sustainable Infrastructure, a company based in the United Kingdom, and operated by Arizona Solar One LLC. It utilizes solar thermal technology with energy storage and single-axis solar tracking. The facility consists of two generators and is the 4th largest solar plant in Arizona (out of 23) and the 95th largest in the United States (out of 639).
In its most recent year of operation, Solana Generating Station produced 845,906 MWh of electricity, achieving a capacity factor of 34.5%. The plant operates within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is Arizona Public Service Company. Financial data is available for the plant from LBNL, suggesting public information on its costs or power purchase agreement (PPA).
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Arizona Public Service Company
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
29.4K MWh
Latest Month
845.9K MWh
Annual Generation
34.5%
Capacity Factor
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Solana solar plant to pay $1.5 million in air-quality fines
The Solana Generating Station west of Gila Bend has agreed to pay $1.5 million in fines for air-quality violations that date back to 2014.
Solana Solar Power Generating Station, Arizona, US
Solana Solar Power Generating Station, with an output capacity of 280MW, is one of the largest concentrating solar power (CSP) plants in the world.
Last updated 2026-03-26
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