? asked in Home & GardenDo It Yourself (DIY) · 9 years ago

How to build a free source of energy?

Ive decided i want to use my free time to build something useful like a solar powered energy generator, or wind powered turbine to produce free energy, does anybody out there know of any FREE sites that teach you step by step how to build any one of these? Also what are your thoughts on these machines?

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