Suppose your power company charges $1.00 per kWh as its power rate. (a) What is the

power in kW for an air conditioner that pulls 5 A on your standard 115 V household circuit?
(b) How much does it cost you to run your air conditioner for 12 hours?

One dollar per kwh is much more than power companies charge.

(a) Assuming a power factor of 1, the power consumption is 575 watts = 0.575 kW.

(b) Multiply that kW number from (a) by the cost per kWh.