Solar-powered homes are no longer a pipe dream. Of all the alternative energy options available today, none are more popular than photovoltaic panels, which capture sunlight and convert its energy into household electricity. Recent years have seen an explosion in solar adoption, not least because manufacturing advancements and government incentives have brought down the upfront installation cost, bringing it firmly within an affordable range. If solar panels are not already a common sight on the roofs of homes in your area, just wait. It's really only a matter of time.