Michigan Compiled Laws, Chapter 460. Public Utilities § 460.6d

Sec. 6d. (1) Notwithstanding any other provision of this act, the owner of a renewable resource power production facility shall not be subject to the regulation or control of the public service commission, if all of the following conditions are met:

(2) As used in this act, “renewable resource power production facility” means a facility having a rated power production capacity of 30 megawatts or less which produces electric energy by the use of biomass, waste, wood, hydroelectric, wind, and other renewable resources, or any combination of renewable resources, as the primary energy source.