Starting some time in 2019, electric utilities will be able to submit lower reimbursements to the Michigan Public Service Commission to compensate their solar customers for excess electricity they make availlable to the grid. Utilities pay the customer the same rate they themselves charge. Current customers will continue to receive the old rate for the next 10 years, and there is a narrow window in which new solar customers can get the grandfathered rate. Future solar customers, though, could potentially get paid lower reimbursements. What effect this may have on the spread of solar remains to be seen.