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Pinal County board denies 8,100‑acre Silver King Energy Center after hours of testimony

Pinal County Board of Supervisors · February 18, 2026
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Summary

After a full‑day public hearing with hundreds of written submissions and more than a dozen in‑person speakers both for and against it, the Pinal County Board of Supervisors voted unanimously Feb. 18 to deny the Silver King Energy Center land‑use applications that would have rezoned roughly 8,100 acres for utility‑scale solar, battery storage and a proposed thermal plant.

PINAL COUNTY — After more than five hours of testimony, detailed staff presentations and repeated questions from supervisors, the Pinal County Board of Supervisors voted unanimously Feb. 18 to deny a trio of land‑use applications from Silver King Solar (also presented by Aurevia/Arabia Power) that sought a special‑district comprehensive‑plan change, rezoning and a planned‑development overlay for an approximately 8,100‑acre parcel south of U.S. 60.

The project proposed up to roughly 4,700–5,700 acres of solar arrays (after buffers), large‑scale battery energy storage (BESS) and a southern area that would allow a natural‑gas thermal plant plus mixed employment uses. County staff described the proposal as two development areas separated by the Magma railroad: an I‑3 (industrial)‑zoned northern area dedicated to solar and a southern area intended for a mix of industrial and commercial employment uses.

Alex Hayes, counsel for the applicant, said the project would provide “affordable, reliable, and firm power” for development in Pinal County and noted a…

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