There ain't nothing free....
What are you going to do when your panels
reach the end of their useful life and there's
no way to dispose of them? Landfills won't
accept them, and there are very few
materials in a panel that are recyclable. In
large arrays, they fry any birds flying too
close over them. Your batteries, also
contribute to environmental pollutants.
Just as windmill blades (made from
fiberglass), are stacking up in huge
amounts. Landfills won't accept those
either, and the fiberglass doesn't
decompose.
Living off grid has it's good points, but
there are offsetting bad points.