Geothermal generation means using the geothermal source to produce electricity; in principle, no fuel is necessary so there is no pollution accompanied by it, so it is one of the clean energies.
The expense of geothermal generation consists mostly of the construction of geothermal power plant and excavation fee for the geothermal source; when compared with water power, thermal power, nuclear power, and other generation methods, this has enough economic feasibility to counter these methods.
In addition, compared to the thermal and nuclear power plants, the power plant is small but having its own economic feasibility is its strength and it can also be a local energy source in the small-scale distributing type.