Why isn't geothermal energy more widely used?

Thanks for A2A. Short answer: Risk of return on investment is higher than other forms of energy generation. read more

Geothermal energy is the heat left over from eons ago when the Earth is born and supplemented by element decay which is nuclear fission energy. Both are non-renewable in Earth. They only can be used and no replenishment. read more

With due respect to your statement, "These resources presently supply the world with 99% of its geothermal energy," however, the author should take a look at geothermal, or ground-source, heat pumps (GHPs), which actually provide more energy from the Earth than hot geothermal resources. read more

Geothermal energy is not widely used because of the cost, and the availability. It is most available along the "Ring of Fire" or a major plate boundary. Where hot springs are located, and magma is closest to the surface. read more