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150 MW Solar operating in Maricopa, AZ — Arizona Public Service Company
150 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2025
Operating Since
Coordinates
33.4406, -113.1352
County
Maricopa, AZ
Nearby Plants
| 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
25.0K MWh
Latest Month
316.8K MWh
Annual Generation
31.9%
Capacity Factor
2023
$1,544/kW
Est. Construction Cost
Total estimated cost: $231.6M
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
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ask pi about Harquahala Sun Solar ProjectArizona Public Service Company (AZPS)
Grid Voltage
500.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP