• Measured Energy Savings from Weatherization Alaska vs. National Results

      Colt, Steve (Institute of Social and Economic Research, University of Alaska., 1994)
      This memorandum reviews the differences in measured energy savings from 102 Alaska weatherized homes (ISER 1993) compared with savings from a "cold-climate" region of the United States (ORNL 1993). The National study found a significantly higher level of gross energy saving (12.5%) in its sample of 1040 gas-heated homes than the Alaska study found in is sample of 102 homes. Alaska' lower level of percentage gas savings, relative to the US cold-climate region, cannot be attributed to differences in sampling, data retention, or analytical technique using PRISM. When measured by gas consumption per degree-day, the Alaska sample of weatherized homes appears to have higher thermal integrity prior to weatherization. From different starting points, both Alaska and US single-family homes appear to be achieving a post-weatherization thermal integrity of about .155 cf per degree-day. Alaska mobile homes reach a roughly similar final level of .142 ccf per HDD, commensurate with their smaller size.