20% solar to hydrogen efficiency!
https://www.pv-magazine.com/2021/09/07/direct-solar-hydrogen-generation-tech-powered-by-24-3-efficient-tandem-perovskite-silicon-solar-cell/ …pic.twitter.com/TiX0iRtaF8
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Yeah, I've been following solar development for too long for a % to be meaningful by itself. Multi-junction crossed 40% in the lab years ago, but you don't see a lot of those in solar facilities, last I checked.
these perovskite tandems are in part exciting because you can just grow them on silicon
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