Geothermal energy works from getting the heat from under ground to heat water and use the steam to make energy. I selected this power source because it is not one of the most used ways of getting electricity and there are a few which are usually near geyser parks like near Rotorua in New Zealand.
Here is a diagram that tells you how the whole thing works. First you have to find where the hot water is and then build everything on top.
Step one the hot water is sucked out of the ground and then gets turned into steam. And then because of it's high pressure it turns a huge turbine and the turbine turns a generator which makes the electricity and sends it to our homes. After that the water goes into a cooling station and that makes a lot of steam and then the cold water is sent back down into the ground
Geothermal power is clean, reliable and cost effective but its availability is often limited to areas near tectonic plate boundaries. Geothermal heating applications include industrial uses, heat pumps, space heating and bathing in hot springs which we have a lot in New Zealand. Geothermal energy can run out and there is a limited amount but it is also eco friendly.
Here are some good facts on geothermal energy:
The word geothermal comes from Greek words meaning ‘Earth’ (Geo) and ‘heat’ (Thermos).
Geothermal power plants in the Philippines and Iceland contribute around 30% of their electricity production. In the USA it is less than 1%.
As of 2010, 24 countries around the world use geothermal power to generate electricity while around 70 use it for various forms of heating.
Humans have enjoyed geothermal energy in the form of hot springs for thousands of years
In some parts of Iceland, hot water runs from geothermal power plants under pavements and roads to help melt ice.
13% of New Zealand's electricity comes from Geothermal energy.
It has been discussed in NZ that Geothermal energy is one of the most reliable and renewable energy sources better than solar, wind and hydro.