The PV systems have dropped in price & including installation it is now $3 to $4.50 for a residential system. In TYLER the Solar Energy produced per year is 7,131 kWh or a savings of $784 or 11 cents. An average home in TX uses 13,894 kWh of electricity per year, so in Tyler use less. Can also save money with (1) Tax credits: (2) Depreciation: (3) Cash incentives: & (4) USDA Rural Energy for America Program. MORE TO COME!