Loans secured by your home will generally have lower interest rates, approximately 3.5 % to 6.5 %, than loans secured by the
solar panel system, which range from 3.5 % to 13.24 %,
because the borrower can repossess a larger
asset with more value — your home — to recover the full balance due rather than a
solar system that has likely lost part of its value over time.
It is worth noting that much of that $ 50 billion was spent acquiring wind and
solar generation and its associated spending on transmission, plus gas plants (to back them
because the power is intermittent), and distribution
assets to hook them into the grid or embed them with the local distribution companies.