average cost per watt commercial electricity
The US average residential household used 909 kWh per month and the average monthly electricity bill was $125 before taxes and fees. Prices are higher for residential and commercial customers than industrial customers because it costs more to distribute the electricity and step the voltages down.t an installed price of $1.25 per watt, the cost of PV solar is always cheaper than coal. At $2 per watt, it is cheaper after year 40. At $3.00 per watt, it is cheaper about year 80.