I think it has to do with the assurance of the warranty. The ROI is loooong; sol...

achillesheels 57 days ago | parent | context | favorite | on: Satellite powered estimation of global solar poten...

I think it has to do with the assurance of the warranty. The ROI is loooong; solar contractors can go out of business leaving the parts on the roof lacking in the promised energy savings. Who wants to litigate against a bankrupt company?