[ExI] solar is looking better all the time: was RE: Efficiency of wind power

Mr Jones mrjones2020 at gmail.com
Tue Apr 19 17:25:38 UTC 2011


Did any of you happen to catch this yet?...

http://michigantoday.umich.edu/2011/04/story.php?id=7980&tr=y&auid=8154157

The light must be shone through a material that does not conduct
> electricity, such as glass. And it must be focused to an intensity of 10
> million watts per square centimeter.


How difficult a task is this?  Are the optics required difficult to come
by/produce?

I think I saw somewhere in the article 10% efficiency.  What are current
solar panels rated at?  What efficiency do we need to attain to make solar
ubiquitous?
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