Online Usage Calculator – Time-of-Use Rates

PWC Residential Time-of-Use Rate Calculator

The average PWC residential customer uses 1,017 kWhs of electricity each month, 21% during peak hours and 79% during off peak hours.  Customers can save money by adjusting their daily weekday routine and shifting more of their electrical use to the off peak hours when off peak Time of Use rates ($.08473/kWh) are 30% less than on-peak rates ($.13/kWh)

Peak Periods (excludes Saturdays, Sundays, and PWC recognized Holidays)

Summer:  April-October 3:00 PM-7:00PM
Winter:  November-March  6:00AM-10:00AM

How it works:

  1. Select your estimated monthly energy usage (kWh)*
  2. Select the estimated percentage of off-peak energy use each month
    *For actual use- view your PWC bill or login

How it adds up:

  • See the number of kWh used on-peak and off peak based on your percentage selected
  • See the average Monthly and Annual Cost of operating during off-peak hours
  • See the average cost per kWh you pay based on your on and off-peak use
  • Adjust the estimated percentage of off-peak use to see the difference off-peak use makes:
    • The higher the off-peak use, the lower month costs (and increased savings!)
    • The higher your off-peak use each month, the lower the average cost of kWh!


1000 kWh a month with 80% off peak use (800 kWh) = $93.78
1000 kWh a month with 85% off peak use (850 kWh) = $91.52

Shifting just 50 kWh to off peak use =  $2.26 savings