Technology :

Solar Windows

Solar windows are used to convert light energy into electric energy. they are coated with transparent dye which captures and redirects light along the surface to photo voltaic cells in the window frame. these photo voltaic cells convert the light energy into electric energy.

These voltaic cells absorb only infrared lights to covert into electric energy and let the visible lights pass through and hence these acts as conventional windows and also these are not expensive to use and can cover all the electricity expenses of entire house.

Source : https://www.technotification.com/2015/02/5-eco-friendly-technology-everyone-should-use.html