@humy
Yes, I think perovksites will be limited in usefulness because of weakness to humidity so these cells will probably have much better response life time wise compared to perovskites.
But these 6 layer cells have 47% ratings under 150 suns so that means the total area of production would need 1/150th the real estate for the cells as silicon. That would reduce the price of the system dramatically. 150 square meters of mirrors, 1 square meter of cell.....
call it a thousand watts per square meter incoming, 150 thousand watts on the cell and about 75,000 watts available for heat generation, hot water, more thermodynamic energy generation.
But can you get rid of 75K watts of heat in one square meter of heat sinks or whatever?
There would have to be significant cooling infrastructure and further conversion to energy because of the high energy density if it could be managed.