Innovation provider


David Kulander
Märstagatan 4
SE-75323 Uppsala
Tel.: +4618 430 04 42 


The electrochromic technology is based on a thin (<0.4mm) plastic laminate foil that is able to regulate its transmittance of light and heat radiation by the application of a low electrical voltage (1.5V), and that has a memory effect. The foil can be applied to glass or used as laminate between layers of glass. The voltage drives ions from a layer of nickel oxide, via a polymer electrolyte, into a layer of tungsten oxide. Both of the oxide layers then become darker. Reversing the polarity makes the ions move in the opposite direction, and the two layers brighten. Applications for ChromoGenics energy reducing electrochromic technology include windows for architectural and transport vehicle markets.  


Smart window technology is a solution which can reduce energy consumption in buildings by as much as 50%. ChromoGenics electrochromic technology makes windows 30-86% more energy efficient. ChromoGenics technology can reduce the maximum load on the cooling system by 15-41%. Unique technology developed for cost efficient roll-to-roll coating of electrochromatic thin flexible foils. 

Innovative aspects (ecologic, social and economic)

The main environmental impact is the decreasing of greenhouse gases due to the fact that less energy is spent in buildings and that the fuel consumption of cars Is lowered.  

Application examples

Applications for ChromoGenics windows include buildings and vehicles.



Current stage of development

Already on the market

Intellectual Property Rights

Patent applied for, Secret know-how

Country of origin


Country of application


National Contact Point

Uwe Fortkamp
IVL Svenska Miljöinstitutet AB
Valhallavägen 81
P.O. Box 210 60
114 27 Stockholm

Tel: +46 8 598 56300
Tel: +46 8 598 56390