Hi All, 
I was sent this interesting link, maybe it will be interesting for some
people on the list.
Best regards
		Luis



" Sustainable Energy - Without the Hot Air



What do the fundamental limits of physics say about sustainable energy?
   The British Isles, we often hear, have 'huge' renewable resources -
but
   we need to know how this 'huge' source compares with another 'huge':
our
   huge power consumption. The public discussion of energy policy needs
   numbers, not adjectives.

   Assuming no economic constraints, assuming we cover the country with
   windmills and the coast with wave-machines, every roof with solar
panels
   and every field with energy crops, could Britain get enough power
from
   renewables to continue with our current consumption? "

   www.withouthotair.com






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