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280 MW Solar operating in Maricopa, AZ
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
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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
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Arizona Public Service Company (AZPS)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
29.4K MWh
Latest Month
845.9K MWh
Annual Generation
34.5%
Capacity Factor
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Data from 2013
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This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
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 2026-04-09
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