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What is Green Energy? Green Energy is a form of electricity that originates from a process or manner that has a less negative impact to the environment than other energy sources. Fossil fuels, one example of an energy produced with a harmful side effect to the environment. What are the types of green energy? There are few green energy types which includes solar, wind, geothermal, nuclear and hydroelectric. Let us differentiate them to understand their distinction. 1. Solar - It is a form of green energy that has been harnessed by humans since ancient times. This kind of energy uses the radiant light and heat from the sun. This kind of energy is being used today most especially from small island that doesn't have electricity yet. 2. Wind - This kind of energy form is a conversion of wind energy into a useful form of energy. There are cities in different countries that use this kind of form of power in order to sustain their energy need. Wind energy uses wind turbines to make electricity, wind mills for mechanical power, wind pumps for pumping water or drainage or sails to propel ships etc... 3. Geothermal - Geothermal, from its root words geo which means earth and thermos which means heat is thermal energy stored in the earth. Geothermal is a kind of energy source that determines the temperature of matter. Geothermal of the earth originates from the original formation of the planet; it comes from the radioactivity decay of minerals, from volcanic activity, and from solar power that absorbed at the surface. 4. Nuclear - This is produced by controlled non expensive nuclear reactions. Commercial and utility plants currently use nuclear fission reactions to heat water to produce steam which is then used to generate electricity. 5. Hydro - Hydro energy or what others call hydroelectricity is the term referring to electricity generated by hydropower. The production of electrical power through the use of gravitational force of falling or falling water. It is the most widely used form of green energy. The ultimate goal of green energy is by and large create renewable electricity with as little as pollution as possible produced as a by-product. We cannot deny that every form of energy collection will result in some pollution or destruction to the atmosphere or environment. Nevertheless, sustainable energy is well-known for contributing less negative impact than those other form of energy.