Green energy is acquired from sources that are natural and do not wear out. Using them does not cause any kind of pollution to the earth and harm it. Energy sources like the wind, sun and water are renewable ones since they keep regenerating and are not in a limited amount.
Wind energy can be captured by using technology options like wind turbines. These turbines are rotated through wind power and the wind energy is harnessed in a generator to convert it to electrical energy. The installment costs of the wind turbine and generator are high and so the penetration rate of this technology is low. This form of electricity is totally pollution free.
Another source of technology that is used with increasing penetration rates is the solar energy. Solar panels are installed which contain photovoltaic cells. These cells capture the electrons from sun rays and convert them into electricity. Solar energy is gaining much popularity and many people are using it to power their cars, homes and businesses. The initial investment is large but it is worth it because there are no energy bills to pay. Solar technology is best suited to areas which get a large number of sunny days.
Another green technology option is geothermal. Geothermal energy captures the earth’s internal energy. The steam under earth’s surface is used rotate turbines through generators. These generators in turn heat up buildings and drive down energy costs that would have otherwise been occurred. The usage of this technology is still low because of the lack of such natural sites where the internal energy could be tapped for use.