Interesting article from the Independent. The future is now.
The future of solar tech
- Thread starter beachwomble
- Start date
ManTheVan
LIFE MEMBER
Wow, that looks wonderful if it works!
You can't get more energy out than you put in, so using the light energy contained in ordinary room light or moonlight is never going to yield large quantities of energy. Strong midday sunlight is about 1000W per square metre, so a small band of this solar material is never going to give more than about 1 watt even in sunlight. Your eyes are extremely good at compensating for the variation in sunlight, and lighting in general, and you would be surprised how little energy per square metre is in indoor lighting even when it seems quite bright.
However small low power devices that are only used occasionally, like a remote control, mouse or keyboard, take very little power and can last for months on a couple of AAA batteries. So a very small continuous feed would be enough to keep a small battery charged, or even run the device directly.
Standard solar cell material is not very good at converting very low energy light, so if this new invention is a lot better than silicon solar cells in low light then it will certainly have its uses. But it's not the answer to large scale energy generation I don't think.
However small low power devices that are only used occasionally, like a remote control, mouse or keyboard, take very little power and can last for months on a couple of AAA batteries. So a very small continuous feed would be enough to keep a small battery charged, or even run the device directly.
Standard solar cell material is not very good at converting very low energy light, so if this new invention is a lot better than silicon solar cells in low light then it will certainly have its uses. But it's not the answer to large scale energy generation I don't think.
Sounds promising. I hope I live to see it in our every days lives.
Looks like this ppl with new solar cels that never gets to the market, including perovskites, they need to learn about Shockley queisser limit.
As autorouter mentioned above, earth receives about 1000w per m2 from direct strong sun light. Some areas more and some areas less. Near Equator, at certain times can be as much as 1400w. However, the current solar cell technology, can only capture only a portion of that light spectrum, and at best, with super duper cells, on earth we still limited to about 30-33% efficiency.
Unless you employ expensive cells like space technology and take the panels up in space, you are not going to break that Shockley queisser limit.
It will be nice if perovskites would work in real world
As autorouter mentioned above, earth receives about 1000w per m2 from direct strong sun light. Some areas more and some areas less. Near Equator, at certain times can be as much as 1400w. However, the current solar cell technology, can only capture only a portion of that light spectrum, and at best, with super duper cells, on earth we still limited to about 30-33% efficiency.
Unless you employ expensive cells like space technology and take the panels up in space, you are not going to break that Shockley queisser limit.
It will be nice if perovskites would work in real world
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