Tom has built and sent in descriptions and pictures for several excellent renewable energy projects:
Tom's other projects on Build It Solar:
330 sqft Solar Space Heating System
5.5 KW wind turbine on 140 ft Tom made tower
Simple and effective solar pool heating collector
Press for forming heat collection fins for solar water heating collectors (this page)
Tom also has a solar website with lots of good material...
Gary December 9, 2009