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Geothermal power in Australia is little used but growing.〔Geothermal electricity#Utility-grade plants〕 There are known and potential locations near the centre of the country that have been shown to contain hot granites at depth which hold good potential for development of geothermal energy. Exploratory geothermal wells have been drilled to test for the presence of high temperature geothermal reservoir rocks and such hot granites were detected. As a result, projects will eventuate in the coming years and more exploration is expected to find new locations. ==Exploration== Exploration involves finding vast blocks of "hot rocks" with fracture systems that could generate electricity through water being injected, circulated through the fractures, and being returned to surface as steam which could then be used to rotate steam turbines.〔(Big energy role for central Australia’s hot rocks )〕 There are vast deep-seated granite systems in Central Australia that have high temperatures at depth and these are being drilled by companies such as Panax Geothermal, Geodynamics Ltd, Petratherm, Green Rock Energy and Pacific Hydro to depths of more than four kilometres. South Australia has been described as "Australia's hot rock haven" and this renewable energy form could provide an estimated 6.8% of Australia's base load power needs by 2030.〔 According to a conservative estimate by the Centre for International Economics, Australia has enough geothermal energy to contribute electricity for 450 years.〔(Scientists get hot rocks off over green nuclear power )〕 Parts of central Tasmania have been identified by KUTh Energy as having the potential to generate up to 280MW of power. Such a resource would be able to supply 25% of Tasmania's electricity needs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Geothermal power in Australia」の詳細全文を読む スポンサード リンク
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