Feeling the Geothermal Heat in Australia

When it comes to geothermal energy, Australia can not hold first place in the use of renewable energy sources, but the potential is certainly there. As with other renewable resources, Australia has turned its attention to geothermal energy as a means to reach certain goals of energy by the end of the year. These goals are somewhat mirror the guidelines set by the Kyoto Protocol.

Why is not geothermal energy as prolific in Australia, as in other parts of the world? One reason is that geothermal energy is found in most parts of Australia is not what is considered "wet." Wet geothermal are located in areas containing volcanic activity in which super-heated water at or near the surface Zemlje.Parna created this water rotates turbines that generate electricity. Given that Australia is not volcanically active, binary power plants are used. As you would expect from something that is binary, it's two steps. Unlike wet systems where water is already hot enough to produce steam that rotates the power of a turban, water is injected into the hot granite to create steam in a binary system. In Australia, this granite is located 3-5 km below površine.Topline transfers energy from the heated liquid in what is known as the working fluid (such as ammonia). The working fluid evaporates in the exchanger and then expanded in a turbine, generating electricity energy. As you might guess, the more steps involved in a binary geothermal power are more expensive than in the wet system. Australian authorities have indicated, however, that geothermal energy will be cost competitive with that of carbon-based energy.

Geodynamics, a company based in Australia, may have found a region in South Australia, which will reduce the cost of geothermal energy. They argue that the Cooper Basin contain the hottest granites measured to be ever recorded rocks on the planet. And because the cliff tops that act as an insulation blanket was found to be fractured, water pressure inside them could come to the surface and then heat will be extracted to power turbine.Voda then returned to the incredibly hot rocks below, which is the process to start again . Because this water is naturally occurring, the need for external sources of water are eliminated, reducing the cost of geothermal energy to produce.

As a further exploration of geothermal energy in Australia is conducted, more hot spots are sure to find that of renewable energy sources will become a way of producing energy in the years to come.