The message
from "Brian Sharrock" contains these words:

Unfortunately I 'lost' David's post ... due to a loss of power at my
pc ...


however, if I recall correctly he pointed at a URL
http://www.bwea.com/ref/faq.html#payback (?) which seem to claim ...

'The average wind farm in the UK will pay back the energy used in its
manufacture within six to eight months, this compares favourably with coal
or nuclear power stations, which take about six months'

Hmm; talk about 'hand-waving';

More like willy waving. Only a complete ****** could claim that 6 - 8
months compares favourably to 6 months unless of course the object of
the favour was to take longer.

--
Roger Chapman