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It is as cheap and as low carbon as it comes.
Today, year seven pupils are making a film about the project.
George Walker said he had learnt that coal was not a renewable substance, and added: "But back there at the drill, that water's renewable because its come from the core of the earth, where its really, really hot and can be used again and again."
Newcastle Institute for Research on Sustainability director Professor Paul Younger said back in 2011 he believed there was potential to create a renewable energy supply for large parts of the city with the borehole.
But Ms Standfield, said that while that has not been the case, the research outcomes have been extremely positive.
They include discoveries on the electrical conductivity of water at 2km deep, sucessfully locating and isolating Fell sandstone which is vital in geothermal retrieval and firmly establishing that Newcastle sits above a heat source, likely to extend from Cullercoats to Newburn.
Plans unveiled for country's first commercial geothermal power source
There are already two one km deep boreholes which proved it to be one of the country's best spots for natural heat generation.
The boreholes will be extended to 3km, a depth where the water temperature is expected to exceed 120C.
Mr Percy, 26, the son of the Duke of Northumberland, added: "This temperature is hot enough to generate electricity, and still support other heat uses afterwards, such as a hydrothermal spa."
“We therefore hope that any subsequent site owner will view the boreholes as an asset and continue to support their use for research and development purposes.”
How renewable is a diesel powered drilling rig?
There is no replacement for nightmare nuclear, 'orrible oil or carcinogenic coal. We just have to use less. Much less.
The first commercial size binary cycle geothermal power plant in the world, a 7 gross megawatts dual pressure system using isobutane as the binary fluid, was successfully constructed, and tested at this site in 1980-1982. Although the 7 megawatts demonstration plant only produced electricity for several months on a test basis, the technology has since advanced to become the leading, proven technology for producing electrical power from moderate temperature geothermal resources in the world. There are currently 12 operating binary cycle plants in the Western United States, which produce 184 megawatts of electrical power.
The site is attractive because of the proven 300 degree Fahrenheit hot water resource that has been developed and tested, and because of the significant infrastructure facilities that are currently in place.
The San Emidio Desert is an area of major displacement of a fault southwest of Gerlach, Nevada. Geothermal potential in the San Emidio Desert was unknown until the late 1960s, when exploration drilling for sulfur along the east side of the desert encountered hot water. An approximately 4.4 km long zone, presumably the surface expression of a fault, exhibited hydrothermal alteration and the presence of mercury and sulfur, but no surface springs were present. Water in shallow drill hole–1 m below ground surface–had a temperature of 53C. Thus, the San Emidio geothermal resource was concealed until discovered by drilling for sulfur.
It's not an automatic solution as suggested by hopeful thinkers.