For buses it is very effective, since they stop every few blocks, whether the stop signal is red or not. It also makes for a huge saving on brake repair and rep

For buses it is very effective, since they stop every few blocks, whether the stop signal is red or not. It also makes for a huge saving on brake repair and replacement, which you can imagine is a big expense for buses. Also city buses usually drive under 200 miles a day and then sit overnight so you can have relatively small batteries. All in all, it is hard to think of a type of vehicle where battery power makes more economic sense, and gives you more advantages over ICE.