The power of the earth’s geothermal waters is an alternative source of energy. This method of obtaining energy is used in regions where geothermal sources come to the surface or are located in areas of easy reach.
Before the construction of the station on the site of the sources, the perimeter is evaluated in terms of engineering and economic feasibility, and most importantly security.
Geothermal turbines drive the steam produced by geysers and volcanoes. It follows that geothermal sources are usually located in unstable seismic zones, which means that safety is a matter of paramount importance.
Prospects and Advantages of Geothermal Energy
The scheme of construction of the future geothermal power Plant, converting the energy of geothermal waters of the Earth into electricity, depends on the source at which the station will be built.
Sometimes engineering the idea boils down to simple drilling of the well, and sometimes requires additional equipment and technology for purification of vapor from harmful gases or particulate matter.
The principle of extracting electricity from sources is simple: steam rises up the well, driving the turbine in motion, and then returns back to the casing.
Geothermal plants are widely used in industrial scale, agricultural activities, housing, and communal services. Underground sources are used to water the fields or maintain the required level of humidity for growing crops.
These are successfully used in housing and communal services, replacing traditional power plants. The largest geothermal power station built in Kenya. It supplies enough electricity to keep the city running.
Disadvantages of Geothermal Energy
The main disadvantage of geothermal energy lies in the origin of energy; stations are built in seismically active zones. The problem is that it is not an easy task to predict the awakening of a volcano, an earthquake or the movement of soils. The construction of the station in such places is always a risk.
And given the fact that the construction of geothermal it is expensive, there is a question about the feasibility of using the power of geothermal waters of the Earth.
To avoid risks, for the construction of a geothermal power station are selected quiet regions, where the last seismic activity was seen only in the distant past. Exploration of potential deposits is conducted in more than seventy countries.