5 Unstoppable Stocks on Sale to Buy Now and Hold Forever

It's not a household name, though it's possible your household is (literally) connected to equipment made by Generac Holdings (NYSE: GNRC). As the name almost suggests, Generac makes backup power generators, though it's moved well beyond those roots. In step with the growth of solar power, Generac Holdings also manufactures storage systems, allowing its customers -- including utility companies -- to use electricity at night even when the sun isn't shining.