Historically, the assessment of energy-conservation programs has been focused primarily on energy savings and costs. The recent, increased interest in global environmental problems (e.g., acid rain, ozone depletion, and the greenhouse effect) has made decision makers, as well as program...

We present the energy savings and costs of conservation measures in U.S. multifamily buildings based on an analysis of measured data from our data base of over 25,000 dwelling units. Median energy savings were 1450 kWh/unit in electric-heat buildings and 14 MBtu/unit in fuel-heat buildings, or...