It is the energy companies that will push for it. They benefit, so they have the incentive to make it attractive.
My energy company uses
Jedlix to facilitate smart charging. You set the time you expect to leave, Jedlix will make sure your car is fully charged by then, but it will try to find the best time to do so.
It does not do V2G apparently, but that could fit in.
The user gets a 2 c/kWh reduction on the charge cost. That isn't much, but there are no additional costs. You need no special equipment at all - except for a smartphone to run the app and your car to be either a Renault Zoe or a Tesla.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.