Geothermal energy is energy gather from the earths core. Which is hotter then the suns surface. The heat is normally recovered from steam or hot water. It is another constant free energy we have available to us like wind turbines and solar panels. One could make their own solar or wind turbines from the comfort of their back yards over a weekend. To find out more about making your own homemade power http://www.HomeMadeEnergyReview4U.com