Crafted by Pella, Certified by ENERGY STAR® ENERGY STAR is a program created by the U.S. Environmental Protection Agency and the U.S. Department of Energy to help Americans support the environment through energy efficient products and efforts. Because ENERGY STAR focuses on saving energy, you’ll likely also save on your energy costs. All Pella glass options meet or exceed ENERGY STAR certification across the U.S. How does this benefit you? Not only might you find a decrease in your heating and cooling costs, you’ll also help take care of the environment. Moreover, you’ll enhance your home’s comfort since our ENERGY STAR certified glass blocks most of the sun’s ultraviolet rays. That means almost no fading for your window shades, carpet, furniture and walls. Look for the ENERGY STAR logo on our products as you peruse through our site or Greenfield Showroom. It’ll be located on the product’s NFRC label. Some Pella products greatly exceed U.S. ENERGY STAR guidelines. Contact your Greenfield Showroom to learn more. Schedule Now!