Saturday, November 15, 2008
What is Geothermal Energy?
From the Video: Geothermal energy gives us steady electrical power with minimal environmental impact. Here is how the process works: Water in underground reservoirs is heated to high temperatures by magma. Drills that go 10,000 feet below the earth's surface tap into this hot fluid. The fluid is brought up through the piping with its own pressure. As the fluid makes its way up to the surface some pressure is lost and some of the fluid turns into steam. When enough of the fluid turns to steam the steam is sent to a turbine. The pressure from the steam turns the turbine's blades, which then spin a shaft connected to an electrical generator. An electrical charge is created and sent to a transformer, which increases the charge. The electricity is then sent to home via power lines. Geothermal energy is a very clean and easy energy source to use.