Really isn’t that ground braking though, or am i missing something? It’s basically a Tesla Powerwall. Or, if you want, a UPS (uninterruptable power supply, backup for servers), or Octopus Powervault
No the technology behind it is not groundbreaking or new for that matter. Yes you could think of the EV battery in essence a battery backup on a solar PV system.
As you pointed out, a (very) few EVs already are able to supply back to the grid – i can’t imagine (although i’m not an electchicken) that it’d be hard to do it the other way around. Instead of inverting at the car, invert at the next generation wall charger.
In reality yes you could, but if you think of it as a solar PV system and all the equipment needed, it would be one hell of a charger to fit it all (inverter) in. (Although technology improves over time and one day we may see a micro charger in the future) So it is better for the EV’s onboard bi directional charger and BMS to do it.
Indeed, wouldn’t there be the option for an “inverter cart”, that you plug your car into which converts it to AC? Of course it wouldn’t be that straight forward, just plug your EV in and have lights in the house, i remember all that requiring extra “stuff” with our solar panels.
Yes it is possible but as you have pointed out all the extra equipment required on a solar system or at least an inverter setup to convert to 230V AC. There is however a fundamentally bigger problem, in that EV plays a big part here: If the EV is not equipped with V-2-L or V-2-G to enable bidirectional charging, nor the BMS is set up to allow voltage to travel away from the onboard battery its not going to do it (the computer says no)