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Roll-to-roll fabricated perovskite solar cells under ambient room conditions

nature.com

1–10 of 112 posts

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#3

70 USD for 100 W seems pretty bad? Especially given the low efficiency.

I would expect the price to decrease over time given perovskite solar cells are currently not yet mass produced and still actively being researched.

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#4
post #3

70 USD for 100 W seems pretty bad? Especially given the low efficiency.

I would expect the price to decrease over time given perovskite solar cells are currently not yet mass produced and still actively being researched.

Or, the degradation problems keep them from ever taking off. If they do, they may only do so as part of tandem cells with a silicon PV bottom layer.

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#5

70 USD for 100 W seems pretty bad? Especially given the low efficiency.

A quick look around gives me a current figure of ~1 USD/W in Australia (dunno if that evolved a lot in a short time with the current inflation and currency rates).

Money quote:

"The cost for [production] Seq[ence]. B is likely to be lower than 1 USD W−1, and Seq. C could be lower than 0.5 USD W−1. These represent a significant reduction to the cost estimate from previous works of around 1.5 USD W−147. This results from a similar or lower cost in $ m−2, and a higher recorded efficiency. However, the technology is still not able to compete with mass-produced silicon solar cells, for which module spot prices have been lower than 0.30 USD W−148. Despite this, opportunities may exist in niche markets that value the lightweight and flexible nature of these modules, as discussed in our previous work47. The next step for the technology would be exploring high-value PV markets at the predicted manufacturing costs while addressing the remaining high-cost components to sustainably advance the technology towards commercialisation. Supplementary Fig. 12, with about 5 USD m−2 module cost (excluding encapsulation), shows the potential for the further cost reduction by eliminating the remaining high-cost components."

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#6
post #5

70 USD for 100 W seems pretty bad? Especially given the low efficiency.

A quick look around gives me a current figure of ~1 USD/W in Australia (dunno if that evolved a lot in a short time with the current inflation and currency rates). Money quote: "The cost for [production] Seq[ence]. B is likely to be lower than 1 USD W−1, and Seq. C could be lower than 0.5 USD W−1. These represent a significant reduction to the cost estimate from previous works of around 1.5 USD W−147. This results fr…

[deleted]

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#7
The market need for cheaper solar cells seems to have evaporated, since the vast majority of the cost of solar projects these days is always in labour/land/wiring/inverters/grid connection/maintenance contracts.

That means saving a bit of money on the panels in return for lower efficiency is never a good deal.

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#8

70 USD for 100 W seems pretty bad? Especially given the low efficiency.

The cost model is based on high labor cost assumptions of $25-36 USD/hr. See page 14 below. I wonder how much lower China's industrial capacity could reduce the costs.

https://static-content.springer.com/esm/art%3A10.1038%2Fs414...

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#9

The market need for cheaper solar cells seems to have evaporated, since the vast majority of the cost of solar projects these days is always in labour/land/wiring/inverters/grid connection/maintenance contracts. That means saving a bit of money on the panels in return for lower efficiency is never a good deal.

Some are trying to combine perovskite with silicon solar cells because they specialize at capturing different wavelengths. So-called tandem solar cells.

Re: Roll-to-roll fabricated perovskite solar cells under ambient room conditions

#10

The market need for cheaper solar cells seems to have evaporated, since the vast majority of the cost of solar projects these days is always in labour/land/wiring/inverters/grid connection/maintenance contracts. That means saving a bit of money on the panels in return for lower efficiency is never a good deal.

If the materials are cheap enough, we might be able to build them into other stuff that was going to use labor anyway (shingles, asphalt, siding, etc). No idea what the economics of this look like though, and electricians (a pretty expensive form of labor) will need to be involved no matter what, but at least theoretically cheaper cells can also deal with labor costs.
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