Sustainable Energy — without the hot air

About the author David MacKay is a Professor in the Department of Physics at the University of Cambridge. He studied Natural Sciences…

Darrieus Wind Generator Plan

The Darrieus wind turbine is a type of vertical axis wind turbine (VAWT) used to generate electricity from the energy carried in…

This manual describes how to build a 'permanent magnet generator' (PMG). We can also call it an 'alternator', because it generates alternating…

Brakedrum windmill plan by Hugh Piggott. 32 page manual showing how to build a permanent magnet alternator. Not the best reproduction of…

We have great pleasure in offering this download that contains 12 plans for making various size wind generators. From small working models…

Wind generators are devices that produce electricity from the power of the wind; inside the body of a generator, there is a…

The Savonius vertical axis windmill although less efficient than a conventional design does not require to be headed into the wind .…

33 page plan for an axial flux windmill by Hugh Piggott. Excellent diagrams and description.

How To Build a Wind Turbine 2003 By Hugh Pigott. Great Diagrams and detail. all for free.

A guide for development workers 2001 with ITDG for DFID This booklet outlines the potential for using small wind generators to charge…