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Old 06-01-2013, 09:35 PM   #70
'Hamas' Jenkins 'Hamas' Jenkins is offline
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Quote:
Originally Posted by AustinChief View Post
That's hard to say. It can vary by A LOT from panel to panel. But 20% is a good guess for the very very very best shiny new commercial grade panels. And we are talking super high end crazy expensive stuff to get to 20%. Your average home panel is lucky to hit 16%.
This suggests the kind of exponential growth akin to Moore's Law:

http://www.economist.com/blogs/graph...daily-chart-19

If I understand you correctly, you're saying that there is a theoretical limit to the efficiency of solar cells.

Now, if they are 20% efficient, does that mean that they are absorbing 20% of the incandescent energy from the sun? If so, how large of a panel would I need for a watt of energy?
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