There are several alternatives when considering the source of your off-grid electricity, most notably solar, wind, biofuels and hydro.
Solar Power
Technically speaking, solar energy is the only energy we have. Every other “energy” is a derivative of the sun's energy hitting the earth. Fossil fuels, wind power, biofuels, and even wood are all products of the sun. It is the most abundant and basic form of energy. Unfortunately, it is difficult to capture without some technology, though the simpler that technology is, the longer it will last.
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Wind Power
Wind energy is a renewable and efficient means for electricity production. For the small-scale user, wind power is inexpensive, easy to construct, and simple to maintain.
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Biomass
Biomass is basically the byproduct of living organisms, such as biogas or methane, wood or other plant matter, manure and other organic wastes. It can be used to produce heat, combustible gas (for fridges and ovens), and a fuel for electricity producing generators.
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Hydro
Water is an extremely powerful material, and although it is soft to the touch, it can erode mountains and the hardest rocks on earth. Using this power can be a tricky business, but if you are successful, you will have a dependable and reliable source of energy.
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