Savonius Darrieus Turbine by astfaellergerald - Thingiverse
How To Build A DIY 1000 Watt Wind Turbine. 1000 watts is great power for any home. This turbine help charge the battery bank that powers our offgrid home.
How To Build A Bicycle Generator - Having a manual method of producing power is a great backup in case there is no wind or sun to charge your off the grid batteries in an emergency situation! Get between 75 - 150 watts.