to show consumers how major metro areas compare to one another in terms of household bills. Milwaukee, Wisconsin pays the highest expenses out of the 50 largest cities, with an average monthly utility bill of $440 per month, and annual expenses of $5,278. Birmingham, Alabama...
(Total system cost – 30% tax credit savings) ÷ Annual electricity bill costs = Payback period $22,091 ÷ $1,608 = 13.7 years Breakdown of solar panel prices The average solar panel costhas decreased by more than 40% in the last 10 years, according to theSolar Energy Industries Associat...