I am currently dealing with the plug power debate. My "gripe" with providing power is liability. If the batteries dont charge or over charge, the resonsibility is on me to prove the failure was not on my end and it was in the vehicle's batteries, cord, or on board charger which I wont have access to. It will be intersting thing to see how that pans out
It would be however a great way to charge electric buses used in public transportation. Put them at each bus stop, BAM! they charge every time they stop at a bus stop