We have been in the solar arena since the sun came up. Starting in the 1970's near Grass Valley CA with off grid systems, then in the 1990's here in Warner Springs with grid tied systems also. Many of our clients have their systems completely paid for with the electricity generated, and have an annual electric bill of -$100, not to mention our system. We operate an air conditioner in July, August and September. We also use electric heat all winter, and no electric bill ever.