The PowerWindow is an ecological, economical and aesthetical innovation to make the built environment energy neutral. 

PowerWindow is a patented and transparent window that converts light into electricity. Conventional glass reflects about 30% of the incoming light, we instead collect that with our coating, transport it through the glass and convert it at our solar cell strips inside the window frame. With this technology PowerWindow can save up to 50% of the total electricity demand when renovating conventional commercial buildings, and up to 100% of newly constructed commercial buildings.