Smart Windows Technologies

Jake Jacobi | June 2009

According to the U.S. Green Building Council, buildings account for nearly 40% of all energy consumed in the United States. Poorly insulated windows can account for 10%–30% of a building’s heat loss in winter months, while summer light penetration increases the amount of energy required to maintain comfortable living or work environments.

A new generation of windows, also known as “Smart Windows,” “Smart Glass,” or “Switchable Glazing,” incorporates technologies that control the amount of light, glare, and heat transmitted through the glass, while providing a high level of insulation. When used effectively, Smart Windows can reduce peak demand by impacting heating, cooling, and lighting consumption. Some Smart Windows technologies are commercially available, while others are still under development.

In the document “Smart Windows Technologies,” ScottMadden provides an overview of existing and developing Smart Windows technologies, a description of the advantages and disadvantages along with costs, funding, and investment issues, and a profile of some of the emerging issues and barriers to commercial development.

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