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Producing steam from a well in a reservoir hotter than 450 °C (840 °F)—at a proposed rate of around 0.67 cubic metres per second (24 cu ft/s) should be sufficient to generate around 45 MW. If this is correct, then the project could be a major step towards developing high-temperature geothermal resources. [4]
The geothermal production well reached a depth of 5,275 m (17,306 ft) and the fluid injection well 2,393 m (7,851 ft). [ 3 ] [ 1 ] Between August 2020 and July 2021, the wells underwent a series of injection tests to analyse the hydrology within the fractured geothermal reservoir.
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NGDS was initially funded by the United States Department of Energy Geothermal Technologies Program (awards DE-EE0001120 and DE-EE002850), as part of the American Recovery and Reinvestment Act of 2009. The National Geothermal Data System makes use of the large collection of hard copy documents stored in state geological survey archives.
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The geothermal water is supplied by five production wells and injected by six injection wells. There is a program to add three new production wells. [1] The depth of wells is 4,000–8,000 feet (1,200–2,400 m). [2] The technology was supplied by Ormat Technologies. [1] [2] The well drilling contractors were ThermaSource and Ensign. The piping ...
As of 2007 plant construction and well drilling cost about €2–5 million per MW of electrical capacity, while the break-even price was 0.04–0.10 € per kW·h. [10] Enhanced geothermal systems tend to be on the high side of these ranges, with capital costs above $4 million per MW and break-even above $0.054 per kW·h.
Most drilled geothermal exploration wells, up to the production well, are still considered to be within the exploration phase. Most consultants and engineers consider exploration to continue until one production well is completed successfully. [4] Generally, the first wildcat well has a success rate of 25%. Following more analysis and ...