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Commercial Perovskite solar cells at 10 cents per watt could soon bring lower cost energy

• https://www.nextbigfuture.com, brian wang

Lower cost

There are estimates that perovskite solar panels could cost just 10 to 20 cents per watt, compared to 75 cents per watt for traditional silicon-based panels — anywhere from 3X to 8X cost savings.

* The ingredients used to create perovskite are widely available and inexpensive to combine, since it can be done at relatively low temperatures (around 100ºC). Silicon cells need to be heated to high temperatures (as high as 900ºC) to remove defects, which is a costly process.

* Silicate perovskite may form up to 93% of the lower mantle, and the magnesium iron form is considered to be the most abundant mineral in Planet Earth, making up 38% of its volume.

* Versatility: Perovskite rolls have a thin, flexible and lightweight structure due to this processing, unlike silicon wafers, which tend to be thick, heavy and rigid. Because of this versatility, perovskite could theoretically be placed on roof shingles, windows or pretty much any surface imaginable. This versatility is what could enable solar to reach a scale that eventually eliminates dependence on fossil fuels entirely.

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