Indiana Michigan Power is launching a new program for the owners of electric cars to save money on charging them. It says those customers can now get lower rates by charging their vehicles during off-peak hours using a sub-meter. The sub meter would be connected to a customer’s electrical panel and reduce the amount of equipment needed, possibly lowering installation costs. I&M tells us the Michigan Public Service Commission has approved the program, allowing customers to have only the electric car charging equipment on time-of-day-rates while still being billed under one account. The affected customers would receive a bill credit when charging their vehicles on nights and weekends. I&M is also offering to install the first 250 sub-meters for free. You can find out more right here.