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150 MW Solar operating in Maricopa, AZ
150 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Coordinates
33.4406, -113.1352
County
Maricopa, AZ
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Copia Power | — | — |
| Owner(s) | Copia Power | — | — |
| Status | Operating | operating | — |
The Harquahala Sun Solar Project is a 150 MW solar photovoltaic power plant located in Maricopa County, Arizona. The plant began operating in 2025 and utilizes fixed-tilt solar tracking technology. It is owned and operated by Copia Power. As of the latest rankings, the plant is the 14th largest solar facility in Arizona (out of 23) and 371st largest nationally (out of 639).
The plant's primary fuel source is solar energy. In its most recent year of operation, the Harquahala Sun Solar Project generated 316,758 MWh of electricity, achieving a capacity factor of 31.9%. The plant has one generator. The Harquahala Sun Solar Project operates within the Arizona Public Service Company balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region.
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
500.0 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.
25.0K MWh
Latest Month
316.8K MWh
Annual Generation
31.9%
Capacity Factor
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2023
$1,544/kW
Est. Construction Cost
Total estimated cost: $231.6M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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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 2026-03-26
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