Solar tech

Alternative energy sources
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The usual. As I have two large solar PV systems here, and my lab assistant just put one in, and others are interested in things like this, here's where that stuff goes. This is mostly for things that work now, not "gee someday a fusor will do this" -- we know that, but it's not someday yet.
The hope is to save anyone embarking on this sort of thing a lot of wasted time and money, as at least I have been off the grid since 1980 and have had a lot of practice (and made mistakes you won't have to).

Solar tech

Postby Doug Coulter » Tue Sep 11, 2018 8:16 pm

Only about halfway though watching this, but wanted to get a copy going for a neighbor, who after taking a BS futurism course, says panels will soon be 100% efficient...
Not knowing you almost can't make something that black in the visible alone. If you could, making electricity from it all runs into - lower limit V of redder photons, and even photons in the high blue with twice the energy can't make 2 electron hole pairs, and if you even could let the cell voltage rise - now the red photons' electrons can't cross the junction... and so on, TL;DR.

This guy seems to be willing and able to tell the score:
https://www.youtube.com/watch?v=-B1qX2bvd-o


Possible partial cure for too much tech hype:
https://www.youtube.com/watch?v=TFl1N2R-1mc
Posting as just me, not as the forum owner. Everything I say is "in my opinion" and YMMV -- which should go for everyone without saying.
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Doug Coulter
 
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