geothermal energy
Underground thermal power
Geothermal energy is heat extracted from the Earth's interior and converted to usable power.
Hot water and steam from underground reservoirs drive turbines or heat buildings directly.
Unlike solar or wind power, geothermal energy is available continuously regardless of weather: Iceland generates most of its electricity from geothermal energy.
- hydropowerElectricity from flowing currents
- hydroelectricityElectricity from moving water
- hot springsHeated groundwater emerging naturally
- hot waterHeated liquid, or trouble
- heat pumpsDevices transferring thermal energy
volcanic activity · Reykjavik · fault lines · steam turbine · dry steam · subduction zones · heat transfer · Blue Lagoon · hydrothermal vents · carbon neutrality · vents · wells · Iceland · crust · Yellowstone · sustainable · spa · power plant
- energyelectricity, power, oil, fuel, gas
- green energywind power, solar power, renewables, solar farm, solar panel
- natural resourcescrude oil, lumber, water, gas, air
- energy systemspower plant, electricity, power grid, generators, solar power
- green practicesrecycling, recycled paper, reusable bags, solar panels, solar power
- green techsolar panels, solar power, wind turbines, renewables, electric cars
geothermal energysolar energy
Harnessed stellar radiation
solar power · wind energy · wind power · hydroelectric power · tidal energy
geothermal energyfossil fuels
Combustible prehistoric organic deposits
coal · petroleum · oil · coal power · crude oil
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