The world’s demand for all energy forms is anticipated to increase by fifty four per cent over the next two decades, according to forecasts by the US Energy Information Administration.The EIA long-term forecast also predicts that world electricity demand will soar to nearly double by 2025. 
The bulk of the world’s energy comes from fossil fuels, such as coal, oil and natural gas.They release energy during burning, but also simultaneously release carbon dioxide into the air.  These conventional energy resources are finite and the emissions harmful to the environment, hence the growing urgency to develop renewable energy sources, such as  wind, water, biomass, wood, geothermal, photovoltaic and sunlight.   
The amount of solar energy that reaches the Earth’s surface is six thousand times the amount of energy that we use on Earth.Solar energy has been around since ancient times, but as environmental concerns grow, so too is the popularity of solar power.
Traditional fossil fuels such as coal, oil and natural gas are being replaced by renewable energy sources such as solar power, which is mainly used for heating water and electricity.  
In state-of-the-art city skyscrapers and sports stadia to ordinary homes in the heart of suburbia, solar energy provides a clean and cost-effective solution.An example is the giant new stadium in Kaohsiung in Taiwan which is the first stadium to produce power through solar energy.  Built for the 2009 World Games, the gigantic 19-hecare structure has nearly 9 000 solar panels on its roof which will generate sufficient energy to power the building’s 3 300 lights and two enormous television screens.  
Now that is solar energy on an enormous scale.  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.
According to solar power experts, Solar my World in Perth, WA, installing solar electric (photovoltaic) panels to a domestic or commercial property will reduce electricity bills, add value to the property and reduce the carbon footprint.   There are two options for solar power for Perth property owners, namely grid connect and off-grid solar power systems.
A grid connect system will supply solar power to the household via an inverter, and is generally used in more densely populated areas.When the solar system generates power that is surplus to needs, that surplus may be ‘on-sold’ to the electricity grid where appropriate.A standalone system uses a battery bank to store energy until required.This is usually installed in more far-flung areas where conventional power sources aren’t available or are not very reliable.  
Solar power systems can be designed for AC or DC, and can be expanded to meet growing needs making them very versatile systems.
Energy is the single largest contributor to the world’s greenhouse gas emissions, and as environmental concerns grow, the call for people to reduce their own CO2 emissions is growing louder.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.A decision to install Perth solar energy in our homes will give us all the power to help save the world.