The world needs a new source of energy, an unspillable source.

Can you help me find things on Geothermal Energy?

I need solid facts on Geothermal energy so when i debats with people i can do well. My topic is Geothermal energy and other people topics are Solar Energy, Wind Energy, and Necular Energy. I need some information that makes good points about why we have geothermal energy, what’s it’s used for and all that stuff.