4 ms·

These layers are wafer-thin. Don't think you're going to be able to scrape off the perovskite and reapply it in situ. https://www.helmholtz-berlin.de/pubbin/ne

• 0cf8612b2e1e 4y ago
  Even if the degradation could be repaired (e.g. after five years, restore a 28% panel to 31% efficiency), at grid scale, does it make financial sense to do the maintenance instead of replacing the panel when it falls below X%?
  • soperj 4y ago
    Would be a shame to waste all the rest of the product just for numbers sake.
    • highwaylights 4y ago
      It may not need to be wasted. There’s currently a price floor on used EV’s with degraded batteries because they can be used for home energy storage after their useful road life. There could be a solid secondary market 20 years from now for panels that have dropped to say 20% efficiency where the surface area to yield ratio isn’t a factor (rural areas I would guess).
      • lightedman 4y ago
        "There could be a solid secondary market 20 years from now for panels that have dropped to say 20% efficiency" Current drop down to 70% output is roughly 30 years. These panels won't go anywhere for a long time.
  • Schroedingersat 4y ago
    It would need to go to a clean room. And accessing the top lager is at odds with bonding the top glass well enough go protect it. Methinks a better strategy would be trying to make them keep >17% efficiency even if the perovskite fails and just treating it as a temporary bonus for the early movers. Still sounds hard to manage the voltages as it fails though and would require a different strategy for the busbars even if it were viable.