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The US Energy Information Administration (EIA) has forecast that global demand for energy will grow by a massive 54% over the next 20 years.The long-term energy forecast from the EIA predicts that by 2025, world electricity demand will be almost double what it is now. 
The bulk of the world’s energy comes from fossil fuels, such as coal, oil and natural gas.  Their energy is released when they are burnt, with carbon dioxide released into the air at the same time.These traditional energy resources won’t last forever and are not renewable and burning them leads to emissions which harm the environment, therefore there is a growing need to develop renewable energy sources such as wind, water, solar and geothermal.   
The amount of solar energy that reaches the Earth’s surface is six thousand times the amount of energy that we use on Earth.Since ancient times, solar energy has been used to meet some of the world’s energy needs, but with increasing awareness of environmental issues, solar power has come to the fore.
Energy from the sun is a workable alternative to the traditional energy sources of fossil fuels, and is mainly used for generating electricity and heating water.  
From enormous sports stadiums and towering skyscrapers to isolated farmhouses and ordinary suburban households, solar power is increasingly becoming the cost-effective energy solution of choice.The giant new 55 000 seater stadium in Taiwan’s Kaohsiung is the first stadium in the world to use solar energy technology to generate power.The 19-hectare stadium was built for the World Games in 2009 and will generate enough energy for its 3 300 lights and two gigantic TV screens through the 8 844 solar panels on its roof.  
That is solar power on a massive level.  For ordinary households however, solar power is a real alternative to conventional sources and can meet domestic energy needs cost-effectively and with very little maintenance.
Installing solar panels on a domestic property, homeowners will ultimately reduce their power costs, add value to their property and reduce their carbon footprint, say solar power specialists, Solar My World in Perth.   There are two options for solar power for Perth property owners, namely grid connect and off-grid solar power systems.
A grid connect system is usually installed in areas that are more built-up and will supply solar power to a household through an inverter.When the solar system generates power that is surplus to needs, that surplus may be ‘on-sold’ to the electricity grid where appropriate.The other system uses a battery bank for energy storage and is a standalone system.This is usually installed in more far-flung areas where conventional power sources aren’t available or are not very reliable.  
A benefit of a solar power system is its versatility as it can be expanded to meet changing needs and can be designed for both AC or DC applications.
There is increasing concern over the impact that energy generation has on greenhouse gas emissions as it is the largest single contributor to emissions, and there is increasing urgency for people to investigate ways of reducing their own CO2 emissions.As discussed earlier in this article, Taiwan’s new stadium is anticipated to reduce CO2 emissions by 660 tons a year by producing power from its solar panels.  By making a simple decision to install solar power in our domestic locations, we could all have the energy to save the world.

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