Geothermal energy - A sustainable resource of enormous potential

Geothermal energy is available at many locations on the earth's surface. Th is clean and reliable energy has enormous potential and can be used to part ially replace the conventional fuels that are currently used; the total mag nitude of this resource is much larger than the potential contained in all of the fossil and uranium reserves worldwide. Geothermal energy will become increasingly significant during the ne;uf century; enhanced thermal energy R&D is expected to lend to commercial development same time after 2010, de pending on energy costs at that time.