Experiment with generating energy at home, such as solar and wind power
With a motor and some piping, it's surprisingly easy to build this inexpensive, efficient wind generator - and enjoy free energy forever.
You can also harness the energy of the sun to power anything from a light bulb, to your entire house, using a few solar cells and a plastic case.
Learn how to use solar panels to supplement your home or workshop electricity needs here.
For more tips by Make go to www.makezine.com.