Energy Star High Efficiency Residential Windows: Baseline Study & Market Characterization

Date Published: December 1, 1998

Document Type: Market Research Report, Report


Program Administrator:

Northwest Energy Efficiency Alliance


Macro International


The purpose of this study is to: 

  • Develop baseline information on market penetration of <U-35 window and patio door and <U-45 skylight estimates in the four Northwest states.
  • Characterize the manufacture, distribution, and purchase patterns of windows, patio doors, and skylights in the four Northwest states.
  • Identify and discuss factors influencing window and skylight purchases.

Efficiency Topics