Eco-Designs Network 
The following videos show one highly effective system which can easily provide viable, sustainable and affordable solutions and community empowerment.  Designed using waste materials and the Earth itself, by Architect Michael Reynolds, a "Biotecture" guru with a lifetime's experience, achievement, success and proven environmental wisdom.  (We highly respect the integrity of Michael Reynold's designs.)
empowerment -- June 08, 2006 — Angel's Nest is a sustainable home in Taos, New Mexico made from straw bale, tires, pop cans and bottles. The electricity is generated through wind and solar technology. Rain water is captured as culinary water and there is a bio-diesel/hydrogen fueling station outside. http://www.empowermentchannel.org