I think that everything is not green if We don't have green electricity.

Windpower and solar energy are becoming cheaper, and in a few years We will have more green energy.
Hydropower is another interesting energy, because there are lots of small sources that could be used without a expensive cost, there are lots of small dams on rivers or canals that are wasting energy.

A small example:
http://maps.google.es/?ll=41.958597,-4.977837&spn=0.034083,0.055189&t=h&z=14&layer=c&cbll=41.958493,-4.977831&panoid=bCr2PMWPCqJ_QGsOIu_Gwg&cbp=12,65.15,,0,-2.59
 - Power line: yes
 - Dam: yes
 - Water: yes
 - Electricity: NOT.