The Clean Air Task Force commissioned a non-profit geothermal organization, the Hot Rock Energy Research Organization, and an international clean energy consultancy, LucidCatalyst, to estimate the levelized cost of commercial-scale superhot rock electricity.
Graphic courtesy Clear Air Task ForceRegular versus superhot geothermalWhile energy from superhot rocks is not being used now, geothermal energy is being used in a few places where super-hot temperatures exist close to the surface of the earth.
But accessing superhot rock energy involves tapping into hotter, dry rock — which is everywhere, but sometimes far beneath the surface.
Graphic courtesy Clear Air Task ForceIceland is a leader in investigating superhot rock geothermal energy with its Iceland Deep Drilling Project.
Beyond Iceland, Italy, Japan, New Zealand and the United States are leaders in superhot rock geothermal, according to Friðleifsson.