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Friday, February 9, 2024

Superior photo voltaic panels nonetheless have to go the take a look at of time

Different testing in additional intense circumstances has discovered much less optimistic outcomes, with one tutorial examine discovering that perovskite cells in scorching and humid Saudi Arabia misplaced 20% of their effectivity after one yr of operation. 

These outcomes are for one yr of testing. How can we inform what’s going to occur in 30 years? 

Since we don’t have years to check each new materials that scientists dream up, researchers typically put them by particularly punishing circumstances within the lab, bumping up the temperature and shining vibrant lights onto panels to see how rapidly they’ll degrade. 

This form of testing is commonplace for silicon photo voltaic panels, which make up over 90% of the business photo voltaic market at this time. However researchers are nonetheless figuring out simply how nicely the correlations with identified exams will switch to new supplies like perovskites. 

One of many points has been that gentle, moisture, and warmth all contribute to the short degradation of perovskites. Nevertheless it hasn’t been clear precisely which issue, or mixture of them, can be finest to use within the lab to measure how a photo voltaic panel would fare in the true world. 

One examine, printed final yr in Nature, advised {that a} mixture of excessive temperature and illumination can be the important thing to accelerated exams that reliably predict real-world efficiency. The researchers discovered that high-temperature exams lasting only a few hundred hours (a few weeks) translated nicely to almost six months of efficiency in outside testing. 

Corporations say they’re bringing new photo voltaic supplies to the market as quickly as this yr.  Quickly we’ll begin to actually see simply how nicely these exams predict new applied sciences’ capacity to resist the robust job a business photo voltaic panel must do. I do know I’ll be watching. 

Associated studying

Learn extra about why super-efficient tandem photo voltaic cells made our listing of 10 Breakthrough Applied sciences in 2024 right here.

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