[Robotbeat]

The real idea is not using cars for storage but end of life car batteries AND simply using the same factories that make car batteries to make grid batteries. AND, since vehicles will be a significant source of our electricity demand, we can use them as "storage" simply by not charging them at some times.

I think most people don't realize that V2G tech is old (Chademo supported it, and older Leafs can already do it natively, and they're about a decade old), but it's expensive. You basically need a DC charger for every car that will be doing V2G. Look up how much a DC charger is, and you can get something like a dedicated Powerwall for the same price...

[nicoburns]

I think using the car batteries as storage also makes a lot of sense. Suppose technology improves so that cars have ~double the capacity they have now (~150kwh), then that’s super useful for long car journeys, but most people only do short journeys each day. So you could use the excess for storage. And they’d be plenty considering the average household in the uk only uses 10kwh a day (although admittedly that’s factoring in gas heating which will need to be replaced)

[toomuchtodo]

Hence why Tesla sells Powerwalls instead of supporting V2G. There are also subsidies for Powerwalls from a variety of entities, and they can be orchestrated in concert to create a virtual power plant. V2G for anything other than emergency power is unnecessary complexity.

[Brometheus]

Yet Tesla attempts to do it, too, with autobidder