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Re:Organic solar cells set 'remarkable' energy record by pvarangot on Friday August 10, 2018 @08:55AM (#17732799)
28/30% cells are common in spacecraft and have been for more than five years, but they are expensive. A little less than 10k for something like 1 square meter only for the cells wouldn't be crazy.
Re:Organic solar cells set 'remarkable' energy record by mikeyouse on Friday August 10, 2018 @02:16PM (#17735615)
It looks like Boeing's latest multijunction line ships at 30.7% efficient:

https://www.spectrolab.com/photovoltaics.html#cells_cics

Which seems about right, but what I didn't realize is that they're shipping >40% concentrators too. That's pretty great!

https://www.spectrolab.com/photovoltaics.html#cells_cics

(That last link was supposed to be for the concentrator section at the bottom of that page, but I don't think it's a normal # bookmark)