Having alot of EVs at once is a big power need and will cause issues if the grid isn't ready.
Key phrase is "all at once".
From a car and driver report (August 2022):
Currently, it's estimated that around 1 percent of the 250 million cars, SUVs, and light-duty trucks on American roads are electric. However, while it's difficult to estimate future sales, an analysis by IHS Markit projects that 25–30 percent of new car sales could be electric by 2030 and then 40–45 percent by 2035. Using the rates for those projections, Reuters estimates that by 2050 more than half of the vehicles on U.S. roads could be EVs.And utilities are fairly profitable, from Investopedia:
The utilities industry ranks highly in terms of margin metrics. The average net profit margin in the sector was nearly 10% in the first quarter of 2022 and for the trailing 12 months (TTM) was almost 11%.Looks like the grid will have to expand in line with usage over time, like it's always done successfully (and unsuccessfully). And we need to incrementally get our grid shit together over the next 30 years.
Granted, EV sales are kind of currently rocketing upward, but as it stands today in 2022, at a 1% share of vehicles, I'd say EV's are a net zero burden on the current grid.
As an aside, if anyone really wants to get freaked out by resource burdens/constraints, EV's impact on the grid issues are minuscule in comparison to the biggy: Water. I have a close friend who is the director of a major metro municipal water dept in the US. S/he goes around the country and the world in fact giving talks regarding the system, resources, treatment, conservation, etc. as it's considered one of the best around. To hear him/her talk about the water issues we're facing in the next 25 years, not just globally, but in the US too, sends shivers down your spine.