%0 Conference Paper %B ACEEE 1996 Summer Study on Energy Efficiency in Buildings: Profiting from Energy Efficiency %D 1996 %T The National Energy Requirements of Residential Windows in the U.S.: Today and Tomorrow %A Karl J. Frost %A Joseph H. Eto %A Dariush K. Arasteh %A Mehry Yazdanian %X

This paper describes an end-use analysis of the national energy requirements of U.S. residential window technologies. We estimate that the current U.S. stock of 19 billion square feet of residential windows is responsible for 1.7 quadrillion BTUs (or quads) per year of energy use - 1.3 quads of heating and 0.4 quads of cooling energy - which represents about 2% of total U.S. energy consumption. We show that national energy use due to windows could be reduced by 25% by the year 2010 through accelerated adoption of currently available, advanced window technologies such as low-e and solar control low-e coatings, vinyl and wood frames, and superwindows. We evaluate the economics of the technologies regionally, considering both climatic and energy price variations, and find that the technologies would be cost effective for most consumers.

%B ACEEE 1996 Summer Study on Energy Efficiency in Buildings: Profiting from Energy Efficiency %C Pacific Grove, CA %8 08/1996 %G eng %U http://aceee.org/files/proceedings/1996/data/papers/SS96_Panel10_Paper07.pdf#page=1 %L LBNL-39692 %1

Windows and Daylighting Group

%2 LBNL-39692 %0 Conference Paper %B 1996 ACEEE Summer Study on Energy Efficiency in Buildings %D 1996 %T Transforming the Market for Residential Windows: Design Considerations for DOE's Efficient Window Collaborative %A Joseph H. Eto %A Dariush K. Arasteh %A Stephen E. Selkowitz %X

Market adoption of recent, commercially available technological advances that improve the energy performance of windows will lead to immediate economic and energy savings benefits to the nation. This paper is a scoping study intended to inform the design of a major DOE initiative to accelerate market adoption of these windows in the residential sector. We describe the structure of the U.S. residential window market and the interests of the various market players. We then briefly review five recent market transformation initiatives. Finally, we summarize our findings in a list of considerations we believe will be important for the DOE's initiative to transform the U.S. residential window market.

%B 1996 ACEEE Summer Study on Energy Efficiency in Buildings %I ACEEE %C Pacific Grove, CA %8 08/1996 %G eng %U http://aceee.org/files/proceedings/1996/data/papers/SS96_Panel10_Paper05.pdf#page=1 %L LBNL-42254 %1

Windows and Daylighting Group

%2 LBNL-42254 %0 Report %D 1993 %T Savings from Energy Efficient Windows: Current and Future Savings from New Fenestration Technologies in the Residential Market %A Karl J. Frost %A Dariush K. Arasteh %A Joseph H. Eto %X

Heating and cooling energy lost through windows in the residential sector (estimated at two-thirds of the energy lost through windows in all sectors) currently accounts for 3 percent (or 2.8 quads) of total US energy use, costing over $26 billion annually in energy bills. Installation of energy-efficient windows is acting to reduce the amount of energy lost per unit window area. Installation of more energy efficient windows since 1970 has resulted in an annual savings of approximately 0.6 quads. If all windows utilized existing cost effective energy conserving technologies, then residential window energy losses would amount to less than 0.8 quads, directly saving $18 billion per year in avoided energy costs. The nationwide installation of windows that are now being developed could actually turn this energy loss into a net energy gain. Considering only natural replacement of windows and new construction, appropriate fenestration policies could help realize this potential by reducing annual residential window energy losses to 2.2 quads by the year 2012, despite a growing housing stock.

%G eng %L LBNL-33956 %1

Windows and Daylighting Group

%2 LBL-33956