Solar photovoltaic energy systems

Each year, solar electric generating systems offer people more solutions to their energy problems.  The first useful solar cell was developed by Bell Laboratories in 1954.  Since the 1960s photovoltaic cells have been the exclusive power source for satellites.  In more modern times a large part of the world’s population will be introduced to electricity produced by photovoltaic systems.  These systems will make the traditional requirements of building large, expensive powerplants and distribution systems less necessary.

Solar Cells

Solar Cells

Solar cells convert sunlight directly into electricity, our most versatile form of energy.  Today, solar generated electricity service people living the most isolated areas on earth.  First used in the space program, photovoltaic systems are now used in generating electricity to produce power, light up a room or space, turn on swithes, charge batteries, supply electricity to the utility grid and much much more.


It’s obvious to realise that there will be no progress without the use of energy, and no use of energy without the use of technology.  Currently, 80% of the world’s energy requirements depend on fossil fuels.  The consumption of fossil fuel is responsible for about 75% of the basal level of man-made greenhouse gas emissions, with deforestation accounting for the rest.  Governments, utilities, financial institutions and industry are taking a growing interest in promoting the integration of renewable sources of energy into bed generating systems and investment portfolios.

Photovoltaic cells directly convert solar energy into electricity, and many utilities are finding photovoltaic systems to be the best choice for thousands of small power needs.  Silicone is the main semiconductor used in commercial sales.  Solar panels that are currently available on the market are mostly made from monocrystalline, Polly crystalline or amorphous silicone cells.  The demand for solar panels in non-commercial use, such as the home-based market are becoming more and more popular.  Many Ballarat electrician are installing solar panels on the roofs of consumers on a weekly basis.  And the market looks as though it will grow substantially in the coming decades.


In the 1990s the worlds photovoltaic market grew at a rate of 16%.  And significant growth in the demand for photovoltaic systems is expected to occur in the countries of the developing world to help meet the basic logical needs of the 2 billion people without access to conventional electricity grids.  It is also seen in the first world as a green and renewable source of energy and it has a great long-term money-saving benefit.


Australia is blessed with a high level of solar radiation.  This level of sun radiation has made Australia of the sunniest country in the world.  The average rate of the solar radiation in Australia is about 5.1 kWh/m2, which is equivalent to 1861.5 kWh/m2 per year over the entire area of the Australian land.  This is at least 50% more than solar radiation levels in the western European countries like German, Sweden, Denmark, et cetera this makes Australia a good place for utilisation of solar photovoltaic electricity.  This is one of the reasons why we see many Australian homes adopting solar panels on their homes.