Yuma County, Arizona: solar, wind, and storage projects and permits
Planned power plants, county offices, and the rules for a utility-scale lease, a business system, or rooftop solar in Yuma County, county seat Yuma.
Check land in Yuma CountyOpens the land report with the map on the county; click a spot for its flood, wetland, habitat, line-distance and parcel check.
What power plants are planned in Yuma County?
EIA's August 2026 survey lists 3 planned plants in Yuma County, about 1,118 MW in all. Operating today, per the same EIA file: 1,185 MW solar, 683 MW battery storage, 387 MW gas, 98 MW other.
What stands out in Yuma County
By capacity, solar leads in Yuma County with 818 MW at 3 plants, followed by battery storage (1 plant, 300 MW); 1 plant pairs two technologies on one site. The largest is Pioneer Clean Energy Center, 600 MW of solar plus battery storage owned by Yuma bn, LLC, under construction (up to half done), with a planned start of 4/2027. Of the 3, 1 has approvals pending, 1 is under construction and 1 is built but not yet operating. They join the grids run by APS (2) and the California ISO (1). Each of the 3 plants has a different owner. Planned start dates run from 11/2026 to 9/2028.
A listing means an owner reported plans to EIA; plans change, and the planned date is the owner's own estimate.
Scroll the table sideways to see every column.
| Plant and owner | Type | MW | Stage | Planned start iThe month and year the owner told EIA it plans to begin operating. Owners change these dates often. |
|---|---|---|---|---|
| Ironwood SolarArizona Public Service Co · AZPS | Solar | 168 | Built; not yet operating | 11/2026 |
| Pioneer Clean Energy CenterYuma bn, LLC · AZPS | Solar + Battery storage | 600 | Under construction (up to half done) | 4/2027 |
| Elisabeth SolarLeeward Asset Management, LLC · CISO | Solar | 350 | Approvals pending | 9/2028 |
Source: U.S. Energy Information Administration, Form EIA-860M, August 2026 file, planned generators; utilities' own queues list many more requests. What the stages and grid codes mean.
What can Yuma County require of a project?
Arizona has no state siting permit for solar, wind, or battery plants and no state decommissioning law, so Yuma County's own zoning sets most of the rules; a transmission line of 115 kV or more needs a state certificate (state rules).
County rules and recent actions: Utility-scale solar and storage need a special use permit; in the RA-40 district, electric generating facilities are a special use. A 2026 staff report for a 200 MW solar and battery project recommended a decommissioning bond, perimeter fencing, and a traffic impact analysis. (Yuma County staff report (PDF))
Property taxesState trust landWater
Who to contact in Yuma County
Yuma County websiteAssessorPlanning and zoningFlood control district
Solar for homes and businesses in Yuma County
Arizona's export rates, HOA rules, and tax breaks for rooftop and on-site solar are set statewide and by your utility, not by the county: Arizona home and business solar rules · utility application links.
State and federal reviews
ADEQ stormwater coverage, Arizona Game and Fish review, historic preservation consultation, and federal wildlife screening can apply to a site in Yuma County: Arizona agency list.
Get the land report for a spot
Flood zone, wetlands, nearest power line, soils, and more for any point. Parcel acreage fills in automatically in Texas and 26 other states (not Arizona, which has no statewide parcel layer).