It is “vehicle to grid”, not EVs themselves, that are important to fight global warming
Electric cars are half as bad for global warming as a petrol car, and about a third better than a hybrid.1 That doesn’t mean that EVs are a big fuss over nothing. Their real environmental starring role is not as cars, but as battery storage units that happens to move.
Energy demand peaks every evening, and in winter. EVs can solve the former peak, although not the latter. The perfect energy source is “dispatchable”, which means you can turn it on and off easily. Batteries and gas-fired power stations can do this. Nuclear, solar and wind turbines cannot.
This is how the system should work…