Michigan State University Extension has released an updated sample zoning for wind energy systems that is avaialble for local governments to use with its zoning and planning programs. This document has undergone major revisions and updates since March 2017 (see AWEA blog post on April 24, 2017). The document represents the first update to sample zoning that was created in 2008. It includes additional research and takes into account the experiences of a larger number of local governments.
The new MSU Extension sample wind zoning document can be accessed here.