That's really not the case, and plenty of utilities have come out saying that residential electric cars won't cause much issue for them. That's not to say there won't be some costs, but it's not nearly so dramatic.
The main issue is peak vs. base load on the grid. BEV charging affects base load, and with variable pricing, won't affect peak load much at all. When you further consider that most infrastructure has some margin to accommodate increased loads, along with on-site generation with rooftop solar and 'powerwall' batteries, you'll see that there's a lot of room for growth.
Even in cases where substantial capacity increases are required, it doesn't amount to a wholesale replacement of current infrastructure. It means adding more 'backbone' transmission capacity, some substations, and a few key distribution overhauls. The expensive 'last mile' stuff won't need significant changes.
The main issue is peak vs. base load on the grid. BEV charging affects base load, and with variable pricing, won't affect peak load much at all. When you further consider that most infrastructure has some margin to accommodate increased loads, along with on-site generation with rooftop solar and 'powerwall' batteries, you'll see that there's a lot of room for growth.
Even in cases where substantial capacity increases are required, it doesn't amount to a wholesale replacement of current infrastructure. It means adding more 'backbone' transmission capacity, some substations, and a few key distribution overhauls. The expensive 'last mile' stuff won't need significant changes.