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Well, solar concentrators can in (traditional physics-based) theory increase solar cell efficiency substantially: https://iopscience.iop.org/article/10.1088/0022-3727/13/5/01... . Whether that's cost-effective is a different matter.

But that's not got anything to do with Brilliant Light's claims, which so far do not stand up to scrutiny.



They are using concentrator photovoltaics than can handle light 1000 times more intense than normal sunlight: https://en.wikipedia.org/wiki/Concentrator_photovoltaics and the actual suncell lightsource in operation without photovoltaics video from Feb 2023 is at https://brilliantlightpower.com/commercial-suncell-initial-s...


It's interesting that skeptics are always vague and dismissive - I think very few have actually studied the theory - I'm not aware of any specific rebuttal other than the infamous Rathke paper that initially had a sign error in the main equation and had 5 other significant errors as stated by Mills. In any case all it was saying was logically equivalent to this apple cannot be an orange.




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