AI- 9258
2.
Planning and Zoning Commission Meeting (April 2026)
- Meeting Date:
- 04/08/2026
- Title:
- SU26-04 (Winchester III Solar)
- Submitted By:
- Matthew Taylor, Development Services
- Department:
- Development Services
Presentation:
PowerPoint
NAME
of PRESENTER:
of PRESENTER:
Matthew Taylor
TITLE
of PRESENTER:
of PRESENTER:
Planning Manager
Agenda Item Text:
Docket SU26-04: An applicant-initiated Special Use Authorization request to allow a Solar Energy Power Plant with Battery Energy Storage System (BESS) at the approximate southwest corner of Airport and Permenter Roads west of Willcox (APNs 209-86-010B, 209-86-016E, 209-86-016F, 209-86-016G, and 209-86-016H). The proposed project site totals about 1,250 acres and is zoned RU-4 (Rural District, one dwelling per 4 acres).
Background:
The County received a Special Use Authorization request from Winchester Solar III, LLC, (applicant) to allow a 200 MW Solar Energy Power Plant with 800 MWh Battery Energy Storage System (BESS) west of Willcox. Project components include ground-mounted arrays of solar PV modules on single-axis tracking systems; BESS (enclosed integrated battery container systems); electrical collection systems, including switchgear, inverters, transformers, and collection lines; infrastructure such as perimeter fencing, internal access roads, and access driveways and gates; and, remotely operated meteorological stations. The project will use a phased development approach with construction timelines estimated at 12-18 months. The final product is wholesale electric energy with the integrated BESS storing and dispatching power to enhance grid reliability and optimize energy delivery.