Yep! While broad statements are going to be broad around EVs, the reasonable average for actually charging a car overnight is closer to 5 kwh, and for some models it's up as high 10+ kwh. That much per household is a genuinely significant increase to the base load of a local grid, and given how rickety so much of the infrastructure in the US is, it 100% is a concern that municipal power companies are actively working to address. Most places do not have to do anything, but... that's not everywhere, and rural grids are pretty decrepit at this point. It's not insurmountable even a little, but we cannot simply have everyone switch to an electric car without some infrastructure work being done without real issues arising.

In a not-fascist timeline, there would be no problem. But the issue is that getting the funding for infrastructure work is... very difficult due to trump admin fuckery, and so they can cite that lack of infrastructure investment as the reason to not invest in infrastructure and electric cars. It's really just a whole comprehensive gift to grift they've created for themselves.