Yes, Tesla you jogged my memory. Back when I did meter reading & billing of the submeters, one utility had 3 demand rates. Peak, Off-peak & intermediate.
The peak rate was about 4 to 5 times the off-peak rate.
That was all within a large industrial park, with 7.2KV, and multiple 480 volt utility services. If I remember, think it was about 35-45 E-mon D-mon units.
