Check forstuck on heater strips in the air coditioner or heat pump. Is the defrost constantly running in the freezer? Did someone leave a unit heater plugged in and running in the basement?
Assuming $.20/KW-Hr and constant load 24-7 yields
(19+12(A))x120(V) x 24(Hr) x 30(Day) x .20($) ______________________________________________ = $535.68 1000(W)
