Build Your Own Vertical-Axis Wind Turbine On The Cheap - Didn't realize vertical wind turbines existed. The scale of this one and the fact that it supposedly doesn't require gale force winds to produce power makes it definitely worth looking into.
Japanese breakthrough will make wind power cheaper than nuclear
Japanese breakthrough will make wind power cheaper than nuclearA surprising aerodynamic innovation in wind turbine design called the ‘wind lens’ could triple the output of a typical wind turbine, making it less costly than nuclear power.
We built a 1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It's a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed to a charge controller.