I like how the EV crowd always talks about charging at night, what about those working nights? How about all those delivery drivers bringing late night food? All the overnight maintenance runs and freight runs?
Good point. Perhaps it should be stated as, "while you sleep". Point is, for most that will be overnight, which is how overall aggregate grid loading will be managed. But in responding to the poster concerned about maxing out his own 200A service, charging while you sleep is a way to manage household usage, whatever time of day that may be.
When is peak power usage in most locales? I don't know but I bet it's not at noon....
Data is easily available, you could have looked this up yourself. It varies with climate (Florida is not same as Maine), time of year, and even weekend vs. weekday.
But it is indeed "noon" on weekends, or more specifically, noon - 6pm in most climates and times of year. Weekend usage is relatively high 8am - 11pm for most of the year, in most climates, with lowest usage 11pm - 8am.
On weekdays, there are two very high peaks, 7am - 11am and 5pm - 7pm. But even midday (11am - 5pm) shows usage more than double that of the evening and overnight hours in winter. In summer the evening remains a bit higher, due to residential cooling, but still drops off overnight.
Charging EV's at night when all the solar is non producing?
Non issue. Aggregate daytime demand will remain high enough to soak up every spare photon, no matter what time of day EV's are charging. It's really more about managing nukes and hydro, as well as whatever little bit predictive wind may add to the system. Nuclear is an under-utilized technology, in large part due to their inability to throttle up and down at the speed required to manage peak vs. off-peak usage, and our lack of a good storage solution. More EV's sucking at the teet of our grid overnight means reduced delta between peak and off-peak, means better utilization of one of our few legit non-fossil fuel sources.