On the off chance that this technology's cost could be brought down to the same per square meter as a conventional solar panel, it would add $35 to the cost of

On the off chance that this technology's cost could be brought down to the same per square meter as a conventional solar panel, it would add $35 to the cost of each 0.5 m^2 window, plus installation, wiring, conduit, and power converters, for a power output around 1/8 of a correctly installed commodity solar panel (and that's assuming they're able to make their 6% number work in the real world for 25 years). The 1/8 number comes from not only lower efficiency but also shading losses and bad angles. It's a neat research project but even high-rise buildings have more cost-effective options for generating on-site solar electricity and blocking unwanted light.