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As the financial and environmental costs of fossil fuels continue to rise, the ancient art of windpower is making a steady comeback, and many countries are promoting wind energy generation as part of a drive toward a sustainable future. Yet many environmental enthusiasts prefer a more do-it-yourself approach. Windpower Workshop provides all the essential information for people wanting to build and maintain a windpower system for their own energy needs.
Hugh Piggott has spent thirty years off grid an uses wind energy for his own power. He has designed several turbines for manufacture in developing world situations and written a very popular book Windpower Workshop about the theory of wind turbine design and installation. Numerous groups worldwide have started to build wind turbines according to Hugh's recipes and to teach similar courses so as to help others to build their own turbines.
The author
Foreword
A Wild Resource
The wind: a wild resource
No free lunch
The environmental cost
How much power can you expect?
Efficiency: where does the energy go?
Design basics
Summary
Safety
Electrical safety
Protection against fire
Protection against shock
Battery hazards
Other responsibilities
Rotor Design
Betz Revisited
Using lift and drag
Blade design
Upwind, downwind or vertical axis
Conclusion
Blade Making
A word of warning
Blade weight
Blade materials
How to carve a set of rotor blades
Painting and balancing the blades
Generators
What to look for
How generators work
Changing the speed of generators
Types of generator
Motors used as generators
Building a permanent magnet alternator from
Design hints
In conclusion
Mechanical Controls
Facing into the wind
Avoiding overload
Turning away from the wind
Shut down systems
Electrical Controls
Load control: the key to good performance
Heating systems
What batteries like best
Towers
Types of tower
How strong is strong enough?
Erection
Hands-on tower erection
Guy materials
Anchors
Hints for safe erection of tilt-up towers
So we come to the end
Glossary
Windpower Equations
Worked Examples
Access Details
Index