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Moving all private cars to electricity will increase total electricity consumption by 19% (https://phys.org/news/2015-07-cars-electric.html). This number is not something worrying in any way, and well manageable by the current incremental improvement of the electricity grid.

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And the charging is primarily done during the night, where the grid (typically) is less strained. The biggest issue is that it currently doesn't align very well with things like solar.

In my buildings parking garage there are 150 cars, where probably a good 30-40% of cars are BEVs. We're pulling a maximum of 32kW, or 400V/80A. I have yet to find my car not fully charged in the morning. It's a load balanced system, so usually I get full effect of 11kW when charging.

Maybe in europe, but not in rural or surburban America where driving is a way of life. Lots of people would need to charge in the daytime.

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