Without worrying about the resource depletion, what could be a more natural way to gain energy from the Earth? The source of geothermal power might be a solution. What is geothermal energy? Where does geothermal energy come from? To put it simply, geothermal energy is the heat contained inside the Earth. For example, bathing in hot mineral springs is an example of using geothermal energy. How do we convert geothermal energy to electricity? Because the process requires to use the heated water or steam, geothermal facilities often fracture the hot rocks and pump water in.
While some applications require drilling deep down to the ground, other geothermal energy technologies use the Earth's heat near its surface. There are three major types of geothermal energy systems: Direct use and district heating systems, electricity generation power plants and geothermal heat pumps. Direct use and district heating systems help pipe hot water from springs or reservoirs located near the surface of the Earth. Then the hot water can be send into buildings for heat. Electricity generation power plants, however, requires water or steam at higher temperatures (300°F to 700°F). It utilizes hydrothermal resources which contains water and heat. The power plant wells are usually located one or two miles deep underground. Geothermal heat pumps use the Earth's constant temperatures to regulate temperatures in buildings. The pumps transfer the heat from the ground (or water) into buildings during the winter and reverse the process in the summer.
There are several advantages of geothermal energy. For example, the application of geothermal energy is not as complicated as we imagine. A hot shower would feel wonderful during cold winter days. When the weather turns cold, the need to use hot water arises. However, by using geothermal heat pump system, we can save the environment from the pollution that could be caused by heating the water.