
Geothermal energy is a renewable energy source that harnesses the heat from the Earth’s molten core to generate electricity. It involves accessing underground reservoirs of hot water and using the pressurized steam that is produced to spin a turbine, which drives an electric generator.
Although geothermal energy has some advantages over solar and wind power, it is also limited by high costs and geographic restrictions, meaning that it is only produced on a large scale in a few countries.
The infographic illustrates the process of generating geothermal energy, including the use of a cooling tower to condense excess steam back into water and an injection well to pump the water back into the Earth for sustainability.