As well as Tesla Cars the Tesla Powerwall will also be Bi-directional.
They say the Powerwall could earn you $1,000 year income.
This would help to pay for a Powerwall assisting in the making of your decision if you were thinking of buying one.
There seemed to be a piece of equipment involved in the process for the Tesla Car called a Quasar costing $4,000. How would this fit in with anything we currently have for car charging is not known, or will it actually need to fit in with anything ?
Lots of questions still...
How bi-directional charging will work is explained in the video above.