@Hypx It only takes a small amount of critical thought to realise that's not true. Assuming a 100% renewable grid: I need my computer when I'm in work, and I want my dinner at dinner time, so if the wind isn't blowing at those times, some storage is needed. But it is rare to need a car to charge at a specific time - cars charge when there is spare power available on the grid so rarely any need to store energy between generation and delivery to the car.