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
Hot for the Orient America" were both performed on "Countdown". A live performance at the Bombay Rock was simulcast on television show Nightmoves and radio station 3RRR to debut the album. The album was re-printed on CD and re-released as part of the Skyhooks Roadcase boxset in 1996. Hot for the Orient Hot for the Orient is the fifth and final studio album from Australian glam rock band Skyhooks. This was the only album the band recorded without newly departed vocalist Graeme "Shirley" Strachan. Lead vocals are performed by Tony Williams. The album peaked at number 64 on the Australian charts; the band's first