Geothermal Power Generation

Geothermal heat is a huge amount of thermal energy obtained from the inside of the earth and emits a small amount of greenhouse effect gas (GHG) when used as energy. In addition, unlike other natural energies such as solar or wind, geothermal power is not affected by weather. Therefore, it is put to a variety of applications from power generation to heat downcycling as a clean energy source. Geothermal power generation is largely divided into two types: steam power generation based on a heat source of about 200 °C and the other binary generation based on a heat source of about 100 °C. Recently, more attention is drawn to binary power generation that uses a lower-temperature heat source. This chapter discusses the road map of geothermal-based power generation system and application of binary power generation technology.