It’s been 6 years4 months in that time period I’ve had my usual electric bill of 8.18 per month taxes etc and one bill for 23 dollars. In my area the kilowatt charge is the same but all the other fees went up so calculating that I’m at the break even for installing solar. I Iwas selling my SREC to Pa but Virginia just set up to buy direct so every month or so it generates one SREC which will pay estimate of 30.00 , the system has payed for itself and it’s actually making money every month. This is a great co to work with for there support. Best decision I’ve made in my life