Sure, in areas with heavy hydroelectric generation. The dams are only maxed out during the day.
As the Top Gear team recently demonstrated, until the problem of the lengthy recharge time is resolved, electric cars are non-starters.
I believe this has been resolved with the invention of super-high surface area anodes. An SUV battery can be charged in ~15 minutes, and they are scalable to whatever size you like.
They probably are not cheap however.
They also fudged the report - throwing in some of the infotainment they’re famous for (I love Top Gear, but sometimes they can be a bit sensationalist). That Tesla that Jeremy tested had on board monitoring software and at no point at all during the time they had the car did the battery level drop below 20%. So even if it couldn’t tear round the track any more (unlikely that it couldn’t), pushing it into the garage because it was “flat” was just nonsense.
For the bulk of electric car use, the slower recharge time should not be an issue, since you can do it at night in your garage, or while you are parked at work in special bays. Even if you don’t recharge it every day it should hold more than enough for most people’s commutes for a few days.