Australia:

Australia Packed With Underground Geothermal Energy (Australasian Mining Review)

Several parts of Australia show great potential for developing geothermal energy, according to a newly released map in the Global Atlas for Renewable Energy, provided by the International Renewable Energy Agency (IRENA).

Enhanced Geothermal Systems (EGS) is an emerging source of geothermal energy based on a heat source (hot rock) containing only small amounts of natural water in small cracks, as opposed to mainstream geothermal sources with naturally occurring heat, water and extensive fractures.

Layers in the map indicate the average predicted temperature of basement rocks at one kilometer intervals, at depths of 3-10 kilometers (km). Vast areas of Queensland, New South Wales and South Australia boast temperatures exceeding 2400C at 4.5 km depth. Higher temperatures – between 2800C and 3500C – appear obtainable at depths below 7 km.

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