This photograph features a 2.04-kilowatt grid-tied solar photovoltaic (PV) electric system on the Edwards home in Colorado that generates clean, carbon-free electricity. Generous utility and government rebates make PV systems affordable for many homeowners and builders in Colorado. Namaste Solar Electric of Boulder, Colorado, installed this system, which features 12 Sharp 170-watt panels and a PV Powered Inverter. Retrofitting solar equipment to an existing house is easier and less disruptive if the original builder makes the house solar-ready.