Wind and Windspinners: A Nuts and Bolts Approach to Wind-Electric Systems

From Foreword: "In principle, the generation of electricity from wind energy is simple and evident to most of us; the wind turns an S-rotor (or propeller) which turns a generator that produces electricity. The questions, however, begin to form when we go forth to build such a device. How big a machine? Which generator? Where do I put it? What happens when the wind isn't blowing? How much electricity do I need? Do I have enough wind? Who can repair it? Can I get parts? How much will it cost?...This book aims to answer those questions and answer others that would develop naturally in anyone's mind as they commenced to investigate using the wind's energy. Because this book will focus on the owner-built wind/electric system, information is provided in such a way as to allow modification of the units we have constructed to fit individual circumstances, or situations...."