Question: what are the main advantages of geothermal energy?
Answer: Environmentally Friendly. Geothermal energy is more environmentally friendly than conventional fuel sources such as coal and other fossil fuels. ... 
Renewable. ... 
Huge Potential. ... 
Sustainable / Stable. ... 
Heating and Cooling. ... 
Reliable. ... 
No Fuel Required. ... 
Rapid Evolution.