On Tue, 25 Oct 2005 12:01:21 GMT, "Jim" Jim
wrote:

http://www.bwea.com/pdf/mid%20wales%20microwind.pdf

There are a couple of commercial windpower systems (i.e windsave)

http://www.energytech.co.uk/Windsave%20040205.pdf

The concept seems simple enough, there are a couple of homebrew turbines out
there (mast mounted), but afaik not one that can be connected as easily.
Despite this the system is not avaliable for DIY installation.

Would a homebrew roof mount system be a reasonable project?

I'm pretty sure this has been discussed before and a large thermal
store was suggested. This seems reasonable since an immersion heater
isn't too sensitive to variations in voltage - (i.e. + or - 20 %
wouldn't matter much).

A homebrew roof mount system would be a very interesting project.
Reasonable is a matter for you to decide! :-)

Mr F.