Sun-reliant energy systems allow some homeowners to turn a profit by selling excess power to local utilities.
By Matt Woolsey
Owners of solar-powered homes sleep easy all summer. And it’s only in part because they can keep their houses cool without paying obscenely large electricity bills.
Rather, by opting for a photovoltaic (PV) solar-power system, which relies on roof-top solar panels to convert sunlight directly into electricity, a homeowner can, depending on the time of year and the climate in which he lives, cover his monthly energy bill and in some cases, even sell surplus energy back to the grid.
This is due in large part to state and federal subsidies, which homeowners are increasingly embracing. Residential solar installations have tripled since 2002, according to the Solar Energy Industries Association (SEIA), a trade group for solar energy-related businesses.