
In the Oct 2011 issue, in an article titled "Energy savings (for real)": What works: A home energy audit can identify low-tech, high-yield energy retrofits. Your utility or state energy office might offer low-cost audits. But be sure they're using pros certified by the Building Performance Institute or the Residential Energy Services Network. They undergo classroom and hands-on field trainin…
© 2013 Created by Lawrence Berkeley National Laboratory.