Geothermal energy comes from the heat stored under the Earth’s crust. Just think of the heat that comes from lava when a volcano erupts. This key renewable source provides over 20% of electricity in El Salvador, Kenya and the Philippines, while more than 90% of homes in Iceland rely on direct geothermal heat.

Geothermal energy production works by using the heat under the earth’s surface to heat fluids that drive turbines to generate electricity. Several countries already generate a huge share of their electricity from geothermal sources. Geothermal energy now accounts for more than 20% of the Philippines’, El Salvador’s and Kenya’s electricity, while more than 90% of homes in Iceland are heated by geothermal energy.

To further promote the use and deployment of geothermal energy, IRENA has helped to establish the Global Geothermal Alliance (GGA) — a platform for enhanced dialogue and knowledge sharing for coordinated action to increase the share of installed geothermal electricity and heat generation worldwide.