This truely is the "Complete Idiot's" guide to Solar Power, as much of the book is repetitive, ambiguous and impractical. There are a few nuggets in the book worthy of my money (for instance, an easy way to chart home energy usage and references for state and federal incentives) but, for the most part, Ramsey only explores solar power technology to the brink of what one can figure out for himself through common sense. Little detail is given, where detail would be appropriate, even in the context of a "Complete Idiot's" guide (except, perhaps, the constant reminder that Mr. Ramsey also has another book on the market under the "Complete Idiot's" series). I would not recommend this book for anyone wanting to know more than two or three of the dozens of useful things about solar power.