>Lunt said more work is needed in order to improve its energy-producing efficiency. Currently it is able to produce a solar conversion efficiency close to 1 percent, but noted they aim to reach efficiencies beyond 5 percent when fully optimized. The best colored LSC has an efficiency of around 7 percent.
By contrast, conventional rooftop solar is about 18-23% efficient and you need a whole roof of those (often more) to power your house.
I don't think this would provide more than a tiny trickle of electricity, and probably at quite high cost.
It's only infinitely better if the cost of installing these systems is zero. It isn't zero.
Just about the only situation it would make economic sense to do this would be if it were almost the same cost of regular glass, and you already had a PV system set up with virtually all the wiring & inverters necessary already in place (these are a significant cost - roughly 50% of a regular PV installation).
Otherwise the cost simply wouldn't make it worthwhile.
By contrast, conventional rooftop solar is about 18-23% efficient and you need a whole roof of those (often more) to power your house.
I don't think this would provide more than a tiny trickle of electricity, and probably at quite high cost.