You guys may like to look at the issue of Scientific American that has just come out. I leafed through the copy that arrived yesterday in our library, and it seems to contain a pretty good look at the various alternative energy sources including nuclear, wave motion, solar (including with a Stirling Engine) and many more besides. I haven't read any of the articles, but just scanning through it seemed to have some pretty good technical content. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist