Window-Related Energy Consumption in the US Residential and Commercial Building Stock

Window-Related Energy Consumption in the US Residential and Commercial Building Stock

TitleWindow-Related Energy Consumption in the US Residential and Commercial Building Stock
Publication TypeReport
Year of Publication2006
AuthorsJoshua S Apte, Dariush K Arasteh
Call NumberLBNL-60146
Abstract

We present a simple spreadsheet-based tool for estimating window-related energy consumption in the United States. Using available data on the properties of the installed US window stock, we estimate that windows are responsible for 2.15 quadrillion Btu (Quads) of heating energy consumption and 1.48 Quads of cooling energy consumption annually. We develop estimates of average U-factor and SHGC for current window sales. We estimate that a complete replacement of the installed window stock with these products would result in energy savings of approximately 1.2 quads. We demonstrate that future window technologies offer energy savings potentials of up to 3.9 Quads.

LBNL Report Number

LBNL-60146