Rising competition and overcapacity in the panel-producing industry has driven down the cost of solar panel systems.
Grid Alternatives receives equipment donations from solar panel and inverter manufacturers such as SunPower and Enphase.
In theory, the owner of the home with the solar panel system will be a better credit risk because her monthly expenses are lower.
solar panel systems have been around for a while, and tend to last up to 20 years.
As for the benefits of solar panel laws and regulations, Hitt thinks it depends on the community.