Alternative Energy Projects for the 1990's

I just found this book in the library and spent about an hour looking through it. The book is not comprehensive, but it is very interesting. I very much enjoyed reading the engineering explanations of wind turbines, airfoils, heat engines, etc., and must admit that although I am a research engineer working in renewable energy I learned a few things (stuff I should have known already). The prose is excellent-- clear and concise. The author takes pains to explain the basics in a comprehensible but yet technically accurate way.I would recommend this book to anyone who is interested in small energy systems, and I think that it would supply lots of interesting ideas for high school physics projects. Certain discussions of technology are out of date (it appears to have been written in the mid-80's), but the fundamentals can't change. It is not a one-stop source book for someone actually desiring to build off-grid power systems, but its much more enjoyable than any such book could be.