Surviving the heat without using power - They screw plastic bottles to a piece of cardboard and hang it in the window. The air flows differently now.
How to make your very own solar panel set-up completely from scratch. Additionally information to do with working with kits and getting extra parts via Ebay. http://netzeroguide.com/build-your-own-solar-power-system.html Off Grid Solar Power system control
DIY electricity - make your own power from scratch. Otherpower is a large information resource with a large variety of homemade small-scale renewable energy examples; including many micro hydro projects.
Off-grid living: it's time to take back the power from the energy companies
DIY machine shop: Four essential tools you can build from recycled parts. Two or more people can generate electricity from a recycled auto alternator using the treadle-powered generator. Photo courtesy of Pat Delany