This is a real PowerWindow Breakthrough. A new generation transparent solar energy generating windows will provide enough power to make buildings energy neutral. The founders: startup Physee settled in Delft (the Netherlands).
The powerwindows have solar cells installed in the edges at a specific angle that allows the incoming solar light to be efficiently transformed into electricity.
and its Smart:
With SmartWindow we integrate smart sensors in the window that sense the outside environment. SmartWindows control inside systems, such as Airconditioning and sun blinds, based on information about the outside conditions around the building.