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ECD-smart glass technology a major advance in energy-efficient window technology that automatically controls the amount of light and heat that passes through the windows, thereby presenting an opportunity for the windows to be used as energy-saving devices
Advanced electrochromic technologies such as photo-electrochromic windows would darken in sunlight without the use of an external control circuit.
Commercial PerformanceTo review the market potential for improvements in commercial building glazing, quantify the energy savings potentials, explore potential design solutions, and develop guidelines and tools for building designers so that systems are specified and used in an optimal manner. A special emphasis is placed on the daylighting performance of glazing in commercial buildings since lighting is the single largest energy end use and daylighting can improve both visual performance and the quality of the indoor space as well as saving energy.
Electrochromic glazing promise to be the next major advance in energy-efficient window technology, helping to transform windows and skylights from an energy liability to an energy source for the nations building stock.
 Advantages- A small photovoltaic cell could be used to sense the amount of sunlight, darkening the window when the sun is brightest. This would be an appropriate application in a hot climate where solar heating is not desired.
- The photovoltaic cell could be used to lighten the window when direct sunlight is available, but darken it for privacy at other times. This approach would be useful in areas where solar heating is desired.
- In a building with ample solar heating, one could even conceive of using electrochromic windows as a thermostatic control, darkening or lightening the windows as needed to provide more or less solar heating to the living space. In this case, the electrochromic window would be controlled by an electronic thermostat.
See NEWS for breakthrough in ECD Technology
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