Dear Casa Robino.
May the wind be beneath your wings - all the wings you can make out of old bike rims and haywire.
If you would like to build a Wind Turbine, this is a fabulous hitch-out spot to start from:
Casa Robino
Shared Hospitality Excavations
Comments
earlier resources here on the site on windpower
Some more info and designs can be found here.
I also came across several new designs of turbines that can be implemented in an urban environment, though they are not open source... :/
See the turby for example (video) or this one (video).
And I just found an amazing website that is an excellent resource on urban farming :)