Two national advocacy groups are critical of how states have allocated money from the Volkswagen settlement.
The utility has been hosting webinars and meetings to promote electric school buses and funding opportunities.
Clean air advocates say the state should be spending more of its settlement money on electric vehicle infrastructure.
Michigan’s first priority in distributing settlement funds from the 2015 Volkswagen emissions scandal is to replace aging, polluting diesel school buses.
The state will invest $14 million into a public-private partnership with a West Coast charging station developer.