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Smart Windows with Electrochromic Film: Almost Ready for Prime Time
December 14, 2015 | CORDISEstimated reading time: 3 minutes
Retrofitting windows with an electrically dimmable plastic film is a dream that is finally coming close to fruition. According to life cycle assessment studies, considerable energy savings may result when such films are included in architectural glazing, appliance doors, aircraft cabin windows, and vehicle sunroofs; and user comfort is enhanced as well.
The EU-funded EELICON (Enhanced Energy Efficiency and Comfort by Smart Light Transmittance Control) project is focusing on an innovative switchable light transmittance technology that was developed in a project previously co-funded by the EU Framework Programmes. The project developed mechanically flexible and light-weight electrochromic (EC) film devices based on a conductive polymer nanocomposite technology with a property profile far beyond the current state-of-the art.
Dr. Uwe Posset, project coordinator and Expert Group Manager at ZfAE - Center for Applied Electrochemistry, Fraunhofer ISC, discusses the project’s achievements so far.
Do you have any results to show regarding the objectives that you have defined?
We are indeed working on a demonstration line to roll out a possible production process for electrochromic (EC) films, i.e. plastic films that can change colour upon application of a small voltage. Such films can be used to create smart windows for the control of sunlight and glare in buildings and vehicles. This technology is known to have the potential to save substantial amounts of energy for air conditioning. Darkening the film will decrease heat gain in the interior while maintaining the view through the window. The film provides possibilities to retrofit existing windows.
Do you have results from a life cycle assessment (LCA)?
Yes. The results essentially show that the targeted film technology can be produced with less primary energy than a standard EC window. We are currently working on extending the LCA to demonstrate the energy saving potential of the EC film during the use phase.
The EU-funded EELICON (Enhanced Energy Efficiency and Comfort by Smart Light Transmittance Control) project is focusing on an innovative switchable light transmittance technology that was developed in a project previously co-funded by the EU Framework Programmes. The project developed mechanically flexible and light-weight electrochromic (EC) film devices based on a conductive polymer nanocomposite technology with a property profile far beyond the current state-of-the art.
Dr. Uwe Posset, project coordinator and Expert Group Manager at ZfAE - Center for Applied Electrochemistry, Fraunhofer ISC, discusses the project’s achievements so far.
Do you have any results to show regarding the objectives that you have defined?
We are indeed working on a demonstration line to roll out a possible production process for electrochromic (EC) films, i.e. plastic films that can change colour upon application of a small voltage. Such films can be used to create smart windows for the control of sunlight and glare in buildings and vehicles. This technology is known to have the potential to save substantial amounts of energy for air conditioning. Darkening the film will decrease heat gain in the interior while maintaining the view through the window. The film provides possibilities to retrofit existing windows.
Do you have results from a life cycle assessment (LCA)?
Yes. The results essentially show that the targeted film technology can be produced with less primary energy than a standard EC window. We are currently working on extending the LCA to demonstrate the energy saving potential of the EC film during the use phase.
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