 utilitybacked study michigan energy mandate would cost 10b proponents of a constitutional amendment to mandate that 25 of michigan s energy comes from renewable sources by 2025 have submitted petitions to put the question on the november ballot a study funded by a group that includes consumers power and dte energy shows the proposal would cost 10 billion and limit the ability of the legislature to take advantage of new technology or changes that arise in the market do we want to change the constitution to dictate energy policy what do you think read the full article at  wwwdetroitnewscom apps pbcsdll article 