This is what we're doing with Jedlix (I'm the Technical Director there).
Currently we're doing grid balancing and load optimizations so you as EV driver make money while you charge (!) and at the same time you help to keep the electricity grid stable.
Of course that works well with times that there is over capacity on the grid and there is a lot of flexibility in the car (time plugged in vs charge demand).
When there is a lot of production (lots of solar for example) and not a lot of demand (during the daytime) that energy can go nowhere. At night there is usually a lot of demand but less renewable power production (it's dark after all). This is one of the areas where we will leverage vehicle-to-grid to power homes using renewable energy and also allows to more efficiently use the solar power you yourself produce (if you have a PV set up).
Of course that works well with times that there is over capacity on the grid and there is a lot of flexibility in the car (time plugged in vs charge demand).
When there is a lot of production (lots of solar for example) and not a lot of demand (during the daytime) that energy can go nowhere. At night there is usually a lot of demand but less renewable power production (it's dark after all). This is one of the areas where we will leverage vehicle-to-grid to power homes using renewable energy and also allows to more efficiently use the solar power you yourself produce (if you have a PV set up).
Have a look at https://jedlix.com if you have an EV.