According to the program terms, Consumers Energy pays up to $500 toward installing a circuit of up to 50 amps or a hardwired connection for an eligible Level 2 charger, and up to $1,000 for income-qualified customers. The rebate can't exceed the total project cost, including the charger and installation.
You need to be a residential electric customer in good standing and show that you own, lease or have reserved or ordered an EV. Installation and enrollment in the smart charging program must be complete within six months of rebate approval, and there is one rebate per service. A separate rebate of the same size covers dual-cord or power-sharing chargers for households with two EVs.
The terms call it "a permanent rebate program offering" under the tariff approved in Michigan Public Service Commission case U-21224, but they also say terms and the tariff "may change without notice". The overview page calls it an "Instant $500 Rebate" and asks for a Wi-Fi charger; the rebate page says "Cash Back", and the terms require Energy Star rather than Wi-Fi.
Check the approved list before you buy a charger on sale: the Grizzl-E Classic Connect lists UL/cUL but not Energy Star, while Enphase lists Energy Star for its IQ EV Charger 2. How much a plug-in versus hardwired install changes the job is explained in “Hardwired or plug-in EV charger? Choose the installation before the box”.