The first known use of geothermal energy occurs when the Paleo-Indians use hot springs for cooking and bathing.
Geothermal energy can fuel a range of industries, from agriculture to power production. Lower levels of heat found near the Earth’s surface can be used for activities such as processing food, or heating and cooling buildings, greenhouses, and homes. But drilling deeper beneath the surface to higher temperatures allows for one of geothermal energy’s key uses: electricity generation.
Over the last decade, the installed geothermal power generation capacity has gradually increased. Nearly 30 countries now use geothermal energy for electricity production. The United States currently leads production globally, followed by Indonesia and the Philippines.