There are a ton of factors that go into making solar a sound decision. Will the person plan on living there for the next 5-10 years? Will installation costs fi

There are a ton of factors that go into making solar a sound decision. Will the person plan on living there for the next 5-10 years? Will installation costs finally start falling three years from now? Will the government institute a large grid connection fee so as to significantly impact payback periods? Is the roof going to need replacement within the next 10 years?