Highly Insulated Windows Volume Purchase Program. Final Report.

摘要

A market transformation program for highly insulating windows (U-factor no greater than 0.22) and low-E (low emissivity) storm windows was undertaken by the U.S. Department of Energy Building Technology (DOE/BT) program in Fiscal Year 2009 to accelerate the adoption and reduce the costs of these windows in the residential and commercial buildings sectors. Highly insulating windows and low-E storm windows were already commercially available in the United States in 2009 but annual surveys by the National Association of Home Builders (NAHB) showed that highly insulating windows accounted for less than 2 percent of the total volume of windows being sold in the United States. This report documents the development, execution outcomes and lessons learned of the Highly Insulating Windows Volume Purchase (WVP) Program carried out over a three-year period from 2009 through 2012. The primary goals of the program were met: 1) reduce the incremental cost of highly insulating windows compared to ENERGY STAR windows; and 2) raise the public and potential buyers awareness of highly insulating windows and their benefits. A key outcome of the program is that the 2013 ENERGY STAR Most Efficient criteria for primary residential windows were adopted from the technical specifications set forth in the WVP program.