Solar power (photovoltaics) produce during the day, when most vehicles are in use. Being able to directly store energy into their batteries (or maybe even have

Solar power (photovoltaics) produce during the day, when most vehicles are in use. Being able to directly store energy into their batteries (or maybe even have the vehicle directly use it, without having to store it in its battery, just as many portable PC can do) as it is produced and without any intermediate storage (maybe even without the usual AC<->DC transformation(?)) may justify such a system.