Since 2008, the U.S. Department of Energy's (DOE) Zero Energy Ready Home program has recognized hundreds of leading builders for their achievements in energy efficiency, resulting in over 14,000 energy efficient homes and millions of dollars in energy savings. The DOE Zero Energy Ready Home, represents a whole new level of home performance, with rigorous requirements that ensure outstanding levels of energy savings, comfort, health and durability.
The International Living Future Institute (ILFI) is a nonprofit working to build an ecologically-minded, restorative world for all people. Using principles of social and environmental justice, ILFI seeks to counter climate change by pushing for an urban environment free of fossil fuels. ILFI runs the Living Building Challenge, which is the world’s most rigorous green building standard, not to mention several other programs: the Living Product Challenge, the Living Community Challenge, and the Reveal, Declare and Just labels. These programs develop a green framework for living in a 21st-century world.