Workers install solar panels on a rooftop on February 20, 2015 at a home in Palmetto Bay, Florida. Florida is widely known as the Sunshine State but when it comes to harnessing solar power, lots of customers find it just doesn't pay off because electricity is already cheap and there is little incentive to make the change from fossil fuels. AFP PHOTO /KERRY SHERIDANKERRY SHERIDAN/AFP/Getty Images