> that effectively eliminate their monthly home energy costs The average payback, in the US, is 12 years. Until that time, the energy cost isn't eliminated, it

> that effectively eliminate their monthly home energy costs The average payback, in the US, is 12 years. Until that time, the energy cost isn't eliminated, it has shifted to the payment of those panels, along with interest, connection fees, maintenance, and added taxes and insurance. For some, the numbers might not make sense.