The following paper is a designed as a discussion paper on the progress of the uptake of renewable energy in Australia. The purpose of the paper is to highlight the progress Australia has made under government policy settings up to and including 2010.
Under the Renewable Energy Credit scheme (REC) important changes have been made in the variety of renewable energy sources now being used to produce electric power. These are detailed in the paper and include, wind powered generation plants, solar hydro energy plant to produce steam fed directly into existing power station turbines, solar photovoltaic cells to produce domestic power, wave energy utilization to produce power for desalination plant applications, tidal power to produce grid power in various locations around the continent, thermal or hot rock installations to harness heat energy to produce base load grid electrical power and a cutting edge form of power generation known as convection energy systems.
Convection energy is sourced simply by harnessing the power of rising hot air. Some of these convection power plants are designed to be enormous. The paper outlines how at least one United States of America (USA) state has embraced this technology that was first developed in Australia.
The paper also introduces a little thought of area of power generation known as micro renewable energy power systems. These are systems that might be called scavenger power system. The paper explores a range of applications that could be implemented to use power that is a byproduct of other applications and processes to generate power; systems similar to water or sewage flowing down conduits or the process of decomposition within a waste dump. These micro generating systems use available resources to generate electricity.
The paper touches on a new technology in its infancy where the applications are not fully realized or evaluated. This technology utilized vibration to produce small amounts of electrical energy. At present this technology has only produced one commercially viable product, but even this application of the technology has enormous potential.
The paper explains the introduction of RECs, and how the federal government introduced a correction to the scheme to avoid a collapse of the REC trading market. It introduces the New South Wales Feed in Tariff (FIT) scheme. This scheme allows domestic generating power systems to be connected to the main grid enabling this power to be bought by the grid power supplier. This renewable power is then sold on to other power uses. This seems to be a good idea, but when it comes to larger non-domestic producers like local councils the power companies disallow these systems to be connected into the grid through the FIT scheme.
The paper finally shows some inequity in this type of policy, highlighting that with a more flexible approach to organizations like local councils, opportunities of collaboration between the power companies and councils could better utilize unused power available in scavenger power systems when power demands are higher than the supply from renewable sources. This means that at these times of high demand, power companies will need to source electrical energy from conventional sources such as coal fired power stations, diesel generators or gas turbine plants connected to the grid.