Tag: modern

The phrase "geothermal energy" 's been around since way back when.The word "geothermal" derives from the Greek words; geo (meaning earth), and therme (meaning heat).This instantly gives us the quick definition, "geothermal energy is heat from the planet earth".A common misunderstanding of geothermal energy is based on the source of the heat.Both sources which heat our earth will be the earth's core, and sunlight...