1. Geothermal is thermal energy sourced from the ground- often of volcanic origin (ie, magma heating up rocks in the crust).
2. This resource is renewable, because the heat is constantly replenished by convection currents in the mantle. The initial heat source is the core, which will continue to generate heat far beyond non-renewable time scales.
3. The most common way to use this resource is by using the thermal energy to heat up surface and ground water. The heated water turns to steam and is then used to turn turbines which generates electricity. It can also be used to directly heat buildings by using pipe lines to siphon the heat energy.
4. The sun doesn’t play any role in this energy resource (as far as I can think). I may be wrong on this, but I believe this resource is derived purely from earths own thermal energy.
pliny
2 years ago
1. Geothermal is thermal energy sourced from the ground- often of volcanic origin (ie, magma heating up rocks in the crust).
2. This resource is renewable, because the heat is constantly replenished by convection currents in the mantle. The initial heat source is the core, which will continue to generate heat far beyond non-renewable time scales.
3. The most common way to use this resource is by using the thermal energy to heat up surface and ground water. The heated water turns to steam and is then used to turn turbines which generates electricity. It can also be used to directly heat buildings by using pipe lines to siphon the heat energy.
4. The sun doesn’t play any role in this energy resource (as far as I can think). I may be wrong on this, but I believe this resource is derived purely from earths own thermal energy.