What Is Geothermal Energy & How Does It Work?
- POST
It’s been called a “limitless” source of energy by advocates, and “volcano fracking” by critics - but exactly what is geothermal energy?
From the Core of the Planet Diagram illustrating power generation from a hot-water hydrothermal system (Photo credit: US federal government) The term actually defines itself: “geo” refers to earth, and “thermal” means heat. A geothermal power plant extracts heat from deep within the earth. The intense heat from hot magma rises, which boils pools of water buried in crust rock.