While I'm waiting for my Kia EV3 to arrive, I'm desparately trying to figure out which wallbox I need to buy to make use of V2H/V2G. Everything claims to be "ready", but I still don't know whether V2H/V2L will be DC or AC. Which protocol do my smart meters have to provide? What about the PV-inverter? How many apps will I need? How many cloud accounts? What about island-operation? Will I be able to use Home-Assistant for everything? What about feeding in the flexible pricing of my power provider? Another App/API? Which node in this hairball will have which role? Will the car decide when to charge? Or the App? Or the Wallbox? Or its App?

I'm drowning in theoretical options and I'm left with the feeling that everything seems to be possible in theory, but I won't find a solution that works in practice. There are just too many protocols and regulations at play.

Would have loved to wait another year until the dust around these topics have settled a bit, but the old car broke too early :( (sorry for the rant)