At the car yes, but they need to produce 40% more to allow for transmission loss and buffer storage, just for cars by the way, and the grid can in no way cope with the huge charging loads in areas with very little electricity use and already overstretched cabling , when they are banding about talk of 1mw charging and massive battery banks to balance the grid.
As I said grid rationing is a must.
Add in trucks, heat pumps, load sharing, house and factory heating, electric industrial furnaces.
The UK admitted to a 4X bigger grid just for cars, they have already started on a 4 lane pylon superhighway from the North sea wind farm.
Its an immense challenge and is eay past current production of the equipment and materials.