Pima County - Solar & Wind Permitting Requirements
Quick Summary
Pima County requires residential solar and wind installations to submit specific documentation including a site plan, equipment cut sheets, and system schematics before permitting. Solar PV systems need a one-line diagram showing electrical specifications, while solar hot water systems require a schematic with temperature relief valve details; residential properties are limited to one wind tower per lot. Permits for residential solar projects have a 1-day review turnaround (subject to Regional Flood Control District approval if your project scope requires it), making the process relatively fast once your complete application is submitted.
AI-generated summary • Updated 7/12/2026
Program Details
- Program ID
- 5933
- Last Updated
- 8/16/2023
Eligibility
Program Summary
Pima County has outlined its solar and wind permitting standards. The general requirements include a site plan and cut sheets for all system equipment. For solar photovoltaic (PV) systems a one line diagram with conductor and conduit sizes and types must be included. Click here for more information on solar PV system requirements. Solar hot water systems require a solar hot water schematic which includes the temperature relief valve. Wind energy systems are allowed one tower per residential lot. It should be noted that depending on the project scope, your application may require prior approval from Regional Flood Control District (RFCD).Subject to RFCD approval noted above, solar permits for residential and commercial scale projects (not utility scale projects) have a review turn around time of 1 day per the Electric reconnect review time published at Review turn-around times.
Contact & Resources
Please verify current program details with the administering agency before making any financial decisions.