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Perovskites and Solar

Arthur Hanson

Well-known member
Perovskites hold the promise of solar that becomes economically viable and may find a variety of uses in the handling of light in semis. They might even find other uses in the semi sector as their properties are more fully explored. Silicon may soon prove just one of many choices of materials in semis, especially in the 2D area. If anyone can add to the list of promising new materials please do so. I have already covered graphene and a few others.

Material that recycles sunlight could be next big leap for solar cells
 
Flying into Taipei today I was surprised NOT to see solar panels on every roof... This little island is all about coal and oil and next to nothing renewable. Not good. Let's hope the new President is more environmentally friendly.
 
Perovskites hold the promise of solar that becomes economically viable and may find a variety of uses in the handling of light in semis. They might even find other uses in the semi sector as their properties are more fully explored. Silicon may soon prove just one of many choices of materials in semis, especially in the 2D area. If anyone can add to the list of promising new materials please do so. I have already covered graphene and a few others.

Material that recycles sunlight could be next big leap for solar cells

Solar has been economically viable for years. It could be cheaper, but at this point most of the issues around renewables are business model problems.

Elon Musk just lost $3.5B on a double whammy
 
Flying into Taipei today I was surprised NOT to see solar panels on every roof... This little island is all about coal and oil and next to nothing renewable. Not good. Let's hope the new President is more environmentally friendly.

View attachment 16902

This is a chunk of Silicon Valley near me, there aren't many solar panels on the roofs here either. The reason is probably that there isn't much incentive for individuals to invest in solar - I did, and now PG&E are reneging on the deal by removing the E7 net-metering tariff that made it work, instead I get peak price window that is guaranteed to run past sundown (so they get to charge me at exorbitant rates).

Hawaii is doing a better job, but there are still a number of issues with making a transition from fossil fuels to renewable energy, particularly if your power utilities are for-profit.
 
Dyson has joined the battery game with a wealth of real world experience already. He is looking at Li polymer batteries for cars. A firm called Altair Nano in Nevada tried this and failed a few years age and I hope this time Dyson succeeds. Solar needs good batteries and when they come the utilities will be in deep trouble.
 
Dyson has joined the battery game with a wealth of real world experience already. He is looking at Li polymer batteries for cars. A firm called Altair Nano in Nevada tried this and failed a few years age and I hope this time Dyson succeeds. Solar needs good batteries and when they come the utilities will be in deep trouble.

There are a slew of people working on batteries, but as with solar the technology is probably good enough already, it's just business model problems. Tesla are trying to sell the "PowerWall" battery at the moment, and I saw articles saying it can't pay back. Solar doesn't need light weight batteries since it isn't mobile, it needs cheap long-lived batteries - or just use your EV batterires when they are parked.
 
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