I haven't looked into it deeply. But there are a lot of complicated financing arrangements, somewhat nebulous maintenance requirements, and unknown future technology transitions. I see the huge industrial solar farms where I live and it's hard for me to believe that a handful of panels (that don't actually provide me with battery backup which would cost even more and probably wouldn't make sense in New England) pencils out financially. For context, my electrical bill is <$200 month so there's no way the realistic payback is anywhere near 10 years.

Maybe new construction makes more sense but I've been told probably not even in that case in this area of the country.