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Watch Innovative Vertical Axis Wind Turbine

Innovative Vertical Axis Wind Turbine


Watch Dr Feist PassivHaus Video Part 4

Passiv Haus Dr Wolfgang Feist Interview Video (Pt 4)


Watch Shafer Vineyards Thumbnail

Shafer Vineyards Sust. and Solar (California)


  

 

 

 

Resource

Build It Solar

Extensive website devoted to do-it-yourself solar

This website provides a selection of references and analysis tools for solar design - books, websites, publications and information on solar systems.