Usage is high during the way due to work and industry with a peak around 8pm. Electricity usage midnight-5am is very low. And rates are lowered even further as

Usage is high during the way due to work and industry with a peak around 8pm. Electricity usage midnight-5am is very low. And rates are lowered even further as many power plants produce at a uniform rate, regardless of time of day. Things like hydro, nuclear, tidal, and wind.