Wis. Stat. § 700.35: Renewable energy resource easements.

In this section, “renewable energy resource easement” means an easement which limits the height or location, or both, of permissible development on the burdened land in terms of a structure or vegetation, or both, for the purpose of providing access for the benefited land to wind or sunlight passing over the burdened land. Every renewable energy resource easement shall be in writing and shall be subject to the same conveyancing and instrument recording requirements as other easements. Renewable energy resource easements shall run with the land benefited and burdened unless otherwise expressly stated therein.