Geothermal energy is the heat energy in the Earth?s interiors. The temperature at the center of the Earth is about 6000C. In some areas, molten rock is found very close to the surface of the Earth. This hot rock meets underground water and heats it up. This produces steam. Such a place is known as a hot spot. Sometimes, this heated underground water finds an outlet through which it comes out on the surface of the Earth. Such outlets are known as hot springs.

Advantages

No fuel is needed. Once built, however, a geothermal power plant can generate electricity 24 hours a day with low operation and maintenance costs importantly because there is zero fuel cost.

Once a geothermal power station is built, the energy is almost free. Over the life of the generator, geothermal plants are often cost-competitive with all other power sources, including fossil fuel and nuclear plants. This is true even without considering the many indirect costs of fossil- and nuclear-generated electricity that are not reflected in customers? monthly bills.

It does not produce any polluting emissions and does not contribute to the greenhouse effect

Since geothermal power stations are not very large, they have a minimal impact on the environment

Unlike other sources of energy this coal and petrol, geothermal energy is renewable and eco-friendly.

In 2013, world geothermal electricity-generating capacity grew 3 percent to top 11,700 megawatts across 24 countries. Although some other renewable energy technologies are seeing much faster growth—wind power has expanded 21 percent per year since 2008, for example, while solar power has grown at a blistering 53 percent annual rate—this was geothermal?s best year since the 2007-08 financial crisis.

The top three countries in installed geothermal power capacity—the U.S., Philippines and Indonesia—account for more than half the world total. California hosts nearly 80 percent of the 3,440 megawatts of U.S. geothermal capacity another 16 percent is found in Nevada.

 Geothermal energy will help us in reducing energy poverty, air pollution, carbon emissions and costly fossil fuel imports. So let?s adopt it and spread the message about it.