Yes, it is useful to remember that peak load on the Grid is often dominated by/built for industrial users that generally keep somewhat strict 9-5 business days

Yes, it is useful to remember that peak load on the Grid is often dominated by/built for industrial users that generally keep somewhat strict 9-5 business days and evenings/weekends rarely see anything close to that same peak. It's why power utilities have almost always had different rates for Peak and Non-Peak electric usage (to incentivize more non-peak usage). Most EVs even have smart modes that let them schedule their charges to best take advantage of cheaper off-peak electricity pricing.