Oh, that sounds interesting! People are doing amazing things in the world of bicycle technology. You can get a front wheel with a generator hub that powers your front and rear lights--no batteries to replace. I've also heard of a system of public bike rental where you borrow the bike, ride it, put it back into a rack on the street, and the rack extracts that same built up energy and puts it into the city's grid.

I'm thrilled that you're going bike shopping. If you get something that will fit into your SUV, we can do some riding around town together!