![]() ![]() That are otherwise not economical due to lack of water, location, or rock type. ![]() To generate electricity: enhanced geothermal systems (EGS) and low-temperature orĮGS provide geothermal power by tapping into the Earth's deep geothermal resources Whole process, so there are little or no air emissions.Ĭurrently, two types of geothermal resources can be used in binary cycle power plants The water and the working fluid are kept separated during the Heat exchanger and used to turn a turbine. Binary cycle plants use the heat from the hot water to boil a working fluid, usuallyĪn organic compound with a low boiling point. The steam is then separated from the water and used to power a turbine/generator.Īny leftover water and condensed steam are injected back into the reservoir, makingīinary cycle power plants operate on water at lower temperatures of about 225-360 ☏ (107-182 ☌). This very hot water flows up through wells in the ground under its own pressure.Īs it flows upward, the pressure decreases and some of the hot water boils into steam. With temperatures greater than 360 ☏ (182 ☌). Since Yellowstone is protected from development, the only dry steam plants in theįlash steam power plants are the most common and use geothermal reservoirs of water Yellowstone National Park in Wyoming, where there's a well-known geyser called Old.There are only two known underground resources of steam in the United States: The steam is pipedĭirectly from underground wells to the power plant where it is directed into a turbine/generator There are three types of geothermal power plants: dry steam, flash steam, and binaryĭry steam power plants draw from underground resources of steam. The steam rotates a turbine that activates a generator, which produces electricity. Flash steam power plant with bottoming binary unit in Nevada. ![]()
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