There are lots of reasons to buy an electric vehicle these days, starting with their cost. A recent analysis found that running an EV is, on average, 2.3 times cheaper than operating a traditional gas vehicle. There’s always been some concern that, despite the environmental cred not pumping gas gives, EV buyers weren’t doing as much for the environment as they thought: if the electricity powering your car comes from coal, you’re still polluting, just from a power plant, not your tailpipe.