Energy in South Australia and trap in the deeper heat. Due to the low permeability of granite, the hot rocks must undergo hydraulic fracturing and be stimulated to allow a flow of water through the system to produce energy. This heat is slowly conducted to shallower rocks near the surface. Petratherm propose developing the geothermal energy in the more permeable sedimentary rocks that overlay the hot granite, a process called Heat Exchange Within Insulator (HEWI). While somewhat cooler, in many cases they do not require hydraulic fracturing. It is estimated that one percent of geothermal energy shallower than five kilometres below the earth's surface
Notes from Underground after because of such an indulgence in society. The shame displayed here is what separates him from rational egoists and utopian dreamers, but the desire that he sometimes feels to buy into such ideals leaves him on the fringe of society or what can be understood as what drove him underground. The unreliable narrator is used in the entire story. Although the novel is written in first-person narrative, the "I" is never really discovered. The novel's style is also linked to the St. Petersburg Tales in which there is an unreliable narrator. The writing style is very dense and at