But the power outage across England in 2019 acknowledged as caused by wind turbine fault put the grid down for a long time. Where was the backup power then.  Germany which relies on wind power has discovered that coal is the go to back up power source.  If millions of electric cars are used as backup how will owners get to work when batteries are drained.  The current "green renewable" technology seems to be expensive, heavily subsidised wishful thinking - but it does win electoral votes and our politicians never miss an opportunity to virtue signal.,(reply>), The power outage wasnt caused by a single turbine. it was caused by an entire wind farm AND a gas fired plant shutting down.<br><br>As for cars used for back up, the system is designed to be intelligent with the owners deciding how much to contribute. Typically the grid will only request about 3% of any vehicle's capacity, but the owner can inhibit any contribution for a planned long journey the next day or increase contribution if they plan not to use the car.,(reply>), Politicians are the biggest parasites on  the planet.  They feed on us until the day we die.  The dont contribute to society they can only take from society.