"Stuart" wrote in message
.uk...
My first step towards sustainable energy would be to put a solar
panel and
small windmill on top of every roof in the country and link it to
the
national grid. It wouldn't be that difficult to do if it was done on
a
national scale.

That is a possibility, but would require an unbearable skewing of the
economy, because of the capital and maintenance cost of solar cells.

[snip]

Franz