The solar industry is a graveyard of bankrupt contractors and manufacturers. WHY? Because of significant overpromise - and under delivery. Anybody in the industry - or related (which I still am) will share "BEWARE." Even Tesla is having issues.
Why the problem? There are several factors that can cause solar to underperform. First, they get dirty - and stop performing. Second, debris get's caught underneath - and they stop performing. Third, they are not installed exactly right - and stop performing. Fourth, they are installed over an older roof; the roof needs to be replaced - and you are out of luck. Five, it is being "sold back" most of the time to your utility - not going into your personal electric system; lots of opportunities for problems. I sit on the Board of the largest co-op of commercial roofing contractors in the country (over a billion in sales) and solar was the primary topic at the meeting last week: net/net - most members of the co-op have tried - and it hasn't worked. IN FACT, there currently on commercial roofs as an example, there is a large financial penalty for not putting on a solar roof for new construction now - and over 90% are accepting the penalty.
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