Geothermal Energy is regarded as a poor cousin to its more glamorous cousins Wind and Solar.Geothermal Energy Capacity has been installed and the growth rate is a pathetic 3-4% compared to the over 50% CAGR seen for solar energy and around 30% for Wind Energy.However Geothermal Energy possesses one attribute that the others do not.Its 24 hour generation capability is a massive plus compared to the intermittent nature of Wind and Solar Energy.However long project development time and large capital investments have deterred fast growth in geothermal energy in the world.However some countries like Iceland,Indonesia,Philippines and USA have a strong geothermal energy industry.Note Geothermal Energy has massive use as a heating source for homes and offices,however this article mainly talks from the view of Electricity Generation.