New World Record for PV Efficiency

That is very cool, as has been reported on a number of sites, Scientists at NREL’s Solar Energy Research Facility have broken the record for cell efficiency.  This is great news, and better still that they got this efficiency at reasonably high concentrations of 326 suns.  So, my questions are, how much concentration can these things take and when can I get my hands on some?

The technical details sound interesting and it’s assembled slightly differently to a normal triple-junction cell, so it will be interesting to see how this plays out.

My favourite quote from the article:

The new cell is a natural candidate for the space satellite market and for terrestrial concentrated photovoltaic arrays, which use lenses or mirrors to focus sunlight onto the solar cells.

It seems that every time someone mentions CPV, they add “lenses or mirrors”.  There are other ways to do it, and I would venture to say, better ways to do it.


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