About Harquahala Sun
Harquahala Sun is a series of hybrid solar photovoltaic and battery storage power plants located in Harquahala Valley in west Maricopa county. Clean, renewable electricity generated by the power plants will be transmitted via a 500 kV transmission line to the nearby Delaney substation, operated by Arizona Public Service (APS). The first phase will utilize over 300 construction workers and is anticipated to begin operation in 2024.
First Phase Benefits
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Employment could peak at nearly 300 people during construction and ongoing jobs and local services will be required during operation.
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Total investment in Harquahala Sun project facilities, infrastructure, wages and services is estimated to total over $350 Million.
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The project will provide approximately $100 million in additional tax revenue to Maricopa County over its lifetime. These funds can be used to enhance local programs, schools, roads, and other county priorities
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When built, the project will offset 146,000 tons of carbon dioxide emissions, equal to planting over 6.6 million trees or removing 1.1 million cars from the road for a year.
Project Status
Maricopa County Comprehensive Plan Approved - Phase I
CEC Application Approved - Phase I
On June 21, 2022, the Arizona Corporation Commission approved the Project’s Certificate of Environmental Compatibility (CEC) in Decision 78590. The CEC authorizes the construction of a collector substation and approximately 3.5 mile 500kV generation transmission which will connect the Project to the Delaney substation. The filed CEC application for the Project may be accessed here.
CEC Application Approved - Phase II
On January 25, 2023, the Arizona Corporation Commission approved the Project’s Certificate of Environmental Compatibility (CEC) in Decision 78850. The CEC authorizes the construction new 500 kV transmission lines with an approximate corridor length of 13 miles, together with associated 500 kV substations. The filed CEC application for the Project may be accessed here.
CEC Application - Phase III
To learn about our plans for Phase III, please join one of our public meetings.
Community Meeting # 1 (In-Person) – May 7, 2024 @ 6:00 PM (MST)
-383 South 515th Ave. Tonopah, AZ 85354
Community Meeting # 2 (Video Conference) – May 15, 2024 @ 2:30 PM (MST)
- Please check back on the day of the meeting for a link and dial-in only option.
Contact us
HarquahalaSun@copiapower.com
Attention: Garret Bean
24853 Del Prado
Dana Point, CA 92629