Photovoltaic (PV) is a process of generating electrical power by changing solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of cells containing a photovoltaic material. Materials presently used for photovoltaic include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium serenade/sulfide. Due to the growing demand for renewable energy sources, the manufacturing of solar cells and photovoltaic arrays has advanced considerably in recent years.
A photovoltaic system (or PV system) is a system which uses one or more solar panels to convert sunlight into electricity. It consists of multiple components, including the photovoltaic modules, mechanical and electrical connections and mountings and means of regulating and/or modifying the electrical output.
Driven by advances in technology and increases in manufacturing scale and sophistication, the cost of photovoltaic has declined steadily since the first solar cells were manufactured. Net metering and financial incentives, such as preferential feed-in tariffs for solar-generated electricity; have supported solar PV installations in many countries.
In Australia, renewable energy represents 5.2% of the total energy consumption, but only 1.7% of total production, the other phenomena being the result of significant non-renewable energy exports. In the five years to 2009 renewable energy consumption grew by 3.5%, faster than other energy sources. Of all renewable energy sources, hydro represents 63.4%, wind 22.9%, bio energy 11.5%, solar photovoltaic 2.1%, while other sources such as wave and tidal, solar thermal, and geothermal combine to about 0.042%. Note that these figures exclude a significant amount of energy saved through use of solar water heating units as they do not actually produce electricity; this is calculated separately to be 7.4% of clean energy production. Biogas had the fastest rate of growth in 2008-09 with around 33%, followed by solar and wind with 6.5%.
Australia has the potential for vast renewable energy capabilities. However this is not yet fully realized and the country's abundant resources are currently under utilized. The significant deployment of these technologies would substantially mitigate Australia's greenhouse gas emissions, as electricity generation accounts for the majority of the country's carbon emissions. Solar and wind energy sources are being harnessed on a comparatively small scale, and are at the stage of commercialization. Other sources are being investigated and considered, such as geothermal and wave power.
In 2010, The Australian Government introduced the Large-Scale Generation Target of 41,000 gig watt-hours of renewable generation from power stations, along side the Small-Scale Renewable Energy Scheme, an uncapped scheme to support rooftop solar power and solar hot water, to ensure that renewable energy share of 20% of electricity supply by 2020. Several State governments also provide feed-in tariffs to encourage photovoltaic. Survey results suggest that there is considerable public support for the use of renewable energy and energy efficiency in Australia.
A photovoltaic system (or PV system) is a system which uses one or more solar panels to convert sunlight into electricity. It consists of multiple components, including the photovoltaic modules, mechanical and electrical connections and mountings and means of regulating and/or modifying the electrical output.
Driven by advances in technology and increases in manufacturing scale and sophistication, the cost of photovoltaic has declined steadily since the first solar cells were manufactured. Net metering and financial incentives, such as preferential feed-in tariffs for solar-generated electricity; have supported solar PV installations in many countries.
In Australia, renewable energy represents 5.2% of the total energy consumption, but only 1.7% of total production, the other phenomena being the result of significant non-renewable energy exports. In the five years to 2009 renewable energy consumption grew by 3.5%, faster than other energy sources. Of all renewable energy sources, hydro represents 63.4%, wind 22.9%, bio energy 11.5%, solar photovoltaic 2.1%, while other sources such as wave and tidal, solar thermal, and geothermal combine to about 0.042%. Note that these figures exclude a significant amount of energy saved through use of solar water heating units as they do not actually produce electricity; this is calculated separately to be 7.4% of clean energy production. Biogas had the fastest rate of growth in 2008-09 with around 33%, followed by solar and wind with 6.5%.
Australia has the potential for vast renewable energy capabilities. However this is not yet fully realized and the country's abundant resources are currently under utilized. The significant deployment of these technologies would substantially mitigate Australia's greenhouse gas emissions, as electricity generation accounts for the majority of the country's carbon emissions. Solar and wind energy sources are being harnessed on a comparatively small scale, and are at the stage of commercialization. Other sources are being investigated and considered, such as geothermal and wave power.
In 2010, The Australian Government introduced the Large-Scale Generation Target of 41,000 gig watt-hours of renewable generation from power stations, along side the Small-Scale Renewable Energy Scheme, an uncapped scheme to support rooftop solar power and solar hot water, to ensure that renewable energy share of 20% of electricity supply by 2020. Several State governments also provide feed-in tariffs to encourage photovoltaic. Survey results suggest that there is considerable public support for the use of renewable energy and energy efficiency in Australia.
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