-SOLAR POWER-
What happens behind the scenes...
As rays of sunlight hit the solar panel, also known as photovoltaic (PV) it is absorbed by semi-conducting materials such as silicone. Once the electrons are knocked loose from the atoms, it allows them to flow through the material. Light (photo) is converted into electricity (voltage) and called the photovoltaic effect. The arrays of solar panels convert the solar energy into direct current electricity (DC). It enters an inverter which turns it into 120-volt alternating currents (AC) which is needed by home appliances. The AC power enters a utility panel in the house and is distributed to appliances and lights. solar_panels_sun.jpg
The benefits and positives:
Fortunately, solar energy can be stalled in a battery, which means it is able to supply a home with electricity despite the events of a blackout or during the night. If the battery is full the excess electricity shall be exported back into the utility grid, if the system is connected to it. Utility supplied electricity can be drawn from the grid anytime when there isn’t enough solar energy being produced and if there is no more in the battery, at night or in cloudy days.
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Solar Cities:
To show that renewable energy can be successfully used, many ‘solar cities’ have already taken place in Australia. The aim of this is to trial new sustainable models for electricity supply and use. So far, the solar cities are:
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Adelaide Solar city, South Australia – announced 30th August 2006

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Blacktown Solar city , NSW – announced 13 November 2006
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Townsville Solar city, Queensland - announced 26th September 2006
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Alice Solar city , Northern Territory – announced 16th April 2007
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Central Victoria Solar city – announced 19th July 2007
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Moreland Solar city (formerly known: Coburg Solar city) , Victoria – announced 10th June 2008
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Perth Solar city , Western Australia – announced 11th August 2008


The benefits of the solar city program are that...
§ People will better understand the energy use
§ It allows industries to test new sustainable energy options

§ The government will have access to better information on environmental and economic costs and benefits of various energy options