Top 5 Alternative Energy Sources By nslettengren  [9 more lists]

Geothermal energy is a leading source of alternative energy around the world. In essence this process accesses the earths heat by drilling hundreds of feet down, then pumps water down the hole, which creates steam. That steam is then sucked out of the hole in the earth and turns a turbine at the surface creating energy. Currently there are 24 countries actively using Geothermal Energy to power their grids.

Solar energy is becoming the fastest growing alternative energy in the world. With the use of the sun's rays and solar panels equipped with photovoltaic cells, the sun's light it converted into a useable energy source. Solar panels are integrated into both commercial and residential architecture to provide energy to the grid. Also, free standing solar farms are being funded globally to produce 1,000's of kw a day in usable energy for the masses.

Just like it sounds, hydroelectricity is generated by moving bodies of water, usually rivers and oceans. While this source of energy has been harnessed for quit some time, it is still a very important alternative energy source. Hydroelectricity is usually produced by a hydroelectric dam that uses the power of a running river to move large turbines generating energy.

Today, wind energy is mainly used to generate electricity. Wind is a renewable energy source because the wind will blow as long as the sun shines. Like old fashioned windmills, today’s wind machines (also called wind turbines) use blades to collect the wind’s kinetic energy. The wind flows over the blades creating lift, like the effect on airplane wings, which causes them to turn. In 2010, wind turbines in the United States generated about 2% of total U.S. electricity generation.

Biogas typically refers to a gas produced by the biological breakdown of organic matter in the absence of oxygen. Organic waste such as dead plant and animal material, animal dung, and kitchen waste can be converted into a gaseous fuel called biogas. Biofuelsis a type of fuel whose energy is derived from biological carbon fixation. Biofuels include fuels derived from biomass conversion, as well as solid biomass, liquid fuels and various biogases. Both are a great clean burning alternative to fossil fuels!