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Scientists invent double-sided solar panel that generates vastly more electricity
(www.independent.co.uk)
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Bifacial panels have been a thing for several years, mostly in utility-scale solar installations.
We have bifacial panels, cost was comparable, and rated at ~15% additional output. Now almost 2yrs old.
This is using perovskite tho and boosts more like 20%. Plus normal perovskite-silicon panels are more efficient as well. May not be a new concept, but it is new tech.
Fair enough, good point.