Last night I ran to the supermarket just before they closed and as I left there was a vacuum cleaner truck running around the parking lot. I've seen these before in large parking lots after hours, they're used to suck up debris that people drop during the day. As the thing went by me, I got a choking nose full of diesel and my first thought was, "this would be a good application for an EV!" It wouldn't need much range, but the vacuum system probably would suck some battery power. It would also have plenty of time to charge during the day.
