The City of Tempe supports green building design. We have encouraged LEED Certification projects, solar panels in single family residential, and per your request; Wind Mills are allowed in Single Family Districts by right. A use permit would be required if its exceed 35' in height.
If you have any questions, please let me know.
Thank you,
Shawn Daffara
Planner II
Development Services/Planning
Ph: (480) 858-2284
Fax: (480) 350-8872
Shawn_Daffara@Tempe.gov