Furthermore you could charge them during the middle of the day and at night, and use the batteries during morning and evening commutes, which is pretty ideal.
As for the additional mass and displacement, the video mentions boats having to push water out of the way, but water also fills in behind the boat, so there isn't as much physical work involved as it sounds like.
As for the additional mass and displacement, the video mentions boats having to push water out of the way, but water also fills in behind the boat, so there isn't as much physical work involved as it sounds like.