How long before he realizes a return on an investment of 65K when his bill was 300 to 400 a month? Can the guy add?
16.92 years ROE for a $20 monthly bill reduced from $400 per his account. Many of the cells in his electricity generation system will be gone before that (most of them anyway)...battery replacements, DC/AC conversion system, control system....somebody sold him a bill of goods.
Additionally, they installed this stuff directly over a membrane roof. I’m guessing which will develop stress leaks long before that. I cringe when I look at it.