(Winchester, IN)--Electric bills are about to change for the roughly 15,000 homes in Randolph County served by Indiana Michigan Power.  But, this time, it’s a change for the better.  Indiana Michigan has announced that it expects to make additional revenue by selling extra power this year, which will allow them to lower rates for their residential customers.  The rate is expected to drop by nearly four percent.  Residents will first see the reduction in their June electric bills.