Where I live it costs about the same as gasoline for 100 km driving if you charge at a random public charging station.
Prices to charge differ. Fast charging is 2x standard charging price.
It is free @home after installing solar panels / installation.
The new e-cars are more expensive than petrol cars. But garage costs are absolutely fantastic. After 4,5 years we had an annual bill of about €100,- and just needed new tires, windshield wipers, and new air filters.
I do remember we had trouble to find a fast charging station on a trip to France 4 years ago. It took 24 hours to get at the destination instead of the normal 12 hours. But things have improved miraculously since. Nowadays it would take maybe 13 hours, no more. Bc there are superchargers about everywhere along the highways, and commercial centres.