The real EV charging issue in general for owners is a way to talk to a p.v. plant to try maximizing charging from Sun. Domestic solar systems with lithium (or o

The real EV charging issue in general for owners is a way to talk to a p.v. plant to try maximizing charging from Sun. Domestic solar systems with lithium (or other tech) storage do that by default, with proprietary tools, cars so far do not. It's a pity not much for mere EV charging but for EV usage at home in the broad sense: IF we will arrive to an open API all vendors agree we can use expensive batteries not only for the car but also to power the home in case of outages reducing a bit they obscene cost compared to their life expectancy...