>...I plan to install a solar PV system that will make the house a net-zero energy consumer (everything is electric, no fossil fuels). Few people are able to a

>...I plan to install a solar PV system that will make the house a net-zero energy consumer (everything is electric, no fossil fuels). Few people are able to afford that because the battery backup needed for daily/seasonal solar variations is just too expensive. You are able to remove yourself from the grid with an estimated 10 year payback?