U.S. start-up unveils ‘world’s largest’ transparent organic PV window

California-headquartered Next Energy said its laminated transparent power-generating windows were produced with its pilot production line.

Pretty cool

3 comments

windows also absorb and convert infrared light, reducing the building’s heating, ventilation, and air conditioning (HVAC) demands

I get the air conditioning part. If the window transforms parts of the energy into electricity, there's less energy entering the building. But how can it reduce heating at the same time? If less infrared enters the room behind the glass, you'd need more active heating in my mind, not less. Maybe, they mean heating costs if you use the electricity for a heat pump?
- Maybe, as heating is contained in the term "HVAC", there is no real contribution to heating beside perhaps better isolation, and HVAC was used beside only the "VAC" part being affected.
- Less IR radiation exiting as well.