The end of coal? Listen to UMEI Director Mark Barteau's interview for Michigan Radio
Consumers Energy in April closed seven of its coal-burning units.
DTE Energy plans to shut eight of its coal-burning units by the year 2023.
Mark Barteau is Director of the University of Michigan Energy Institute. He says eventually, coal is going away because natural gas, wind and solar are more cost-effective - as well as being better for public health and the planet.
"I don't think we are going to see any more coal plants built," he says. "What you have to realize is the units that both DTE and Consumers have been shutting down are older and smaller. So the things remaining like DTE Monroe plant are newer and larger. Long range, I guess the answer's yes, the question is, are we talking 15-20 years or more."