![]() ![]() ![]() The hole is lined with pipe and then filled with fluid, acting as a natural radiator. However, as will be discussed later, a major hurdle for many homeowners is the cost, which can run into the tens of thousands of dollars per dwelling.Īnother kind of geothermal energy is a “deep closed loop” which typically consists of a single hole drilled deep into the ground, then laterally for a similar length through very hot geological formations, and then back up the surface. These pumps literally pump heat from the ground into a space, often homes. ![]() One is called “ ground source heat pump technology ” (GSHP) that extracts heat from the ground and depending on the climate, the source of this heat is either the sun or geothermal energy. Several types of geothermal are used today. There are three main types of geothermal energy plants: dry steam, which takes steam out of the ground and uses it to directly drive a turbine, flash plants, which use high-pressure hot water into cool, low-pressure water and binary plants, which pass hot water through a secondary liquid with a lower boiling point, which turns into vapour that then drives the turbine. Geothermal is typically considered to be a local phenomenon as few places sit on underground rivers of steaming hot water, which is why it is not viewed as a particularly major player in the alternative energy landscape. ![]()
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