Granitoid A generic term referring to hard, coarsely crystalline plutonic rock that is produced by intrusion of magma followed by a long period of slow cooling and solidification below the...

Heat exchanger A device or engineered system that is used to transfer thermal energy in soil, rock or produced fluid to heat a closed loop through which another fluid is circulated. Heat...

Heat Mining The process of extracting geothermal heat by the heating of initially cold water that flows through fractures in hot rock below the surface. Heat transfer is achieved by...