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Watts (W)
÷ 1000 = kilowatts (kW)
x
hours used per day
=
kilowatt hrs (kWH)
x
average power
rate $0.085
=
cost per day
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Example: A 60 ft. - 300 watt
roof & gutter de-icing
cable used 24 hours per day.
300 ÷ 1000 = .30 kW
.30 kW x 24 hrs
= 7.2 kWH
7.2 kWH x $0.085 =
$0.61 per day
$0.61 per day x 30 days =
$18.30 per month!
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