内容简介：
The author has been providing his own electricity from the sun and the wind for years, and in this book he explains how you can do the same. There are chapters on the various system components required (including inverters and charge controllers), how to put them all together, batteries, grid-connected systems, and there is even a basic electricity primer. Andy has analysed the output of his system for over 10 years, and these real-life figures are included.