Calculate Energy Consumption
Divide wattage by 1000.
Multiply the kilowatts by the number of hours the appliance operates at full load.
X Hours at full load
Divide the TOTAL FOR SERVICE (bill detail section) by the KWH USAGE (bill period section).
Total for Service
/ KWH Usage
= Cost per KWH
Multiply the KWH for the appliance by the cost per KWH.
X Cost per KWH
= Cost for operating
Multiply the amps by the volts
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