Summary— As the world begins to worry about climate change and the rapid depletion of fossil fuels, it is necessary to accelerate solutions for the production of clean energy from renewable sources. Solar energy has potential as an alternative energy source because it is renewable, universally accessible and emits very little or no CO2. Applications of solar photovoltaic (PV) systems are suitable for Singapore due to its equatorial location, with high solar irradiation of 17 MJ/m²-day and the capacity to produce up to 220 kWh of electricity per day in combination with the high-rise urbanization of the country. Although it is a small country, the energy consumption is 37,974.2 GWh and ranks 53rd out of 216 countries resulting in high CO2 emissions. In 2005, Singapore's total CO2 emissions were 133.85 million tonnes, ranking 41st. The Singapore government had begun to support the need for a cleaner environment by providing incentives for the construction of solar photovoltaic systems in commercial sectors; one example is the Solar Capability Scheme (SCS), which has a budget of S$20 million and subsidizes 30% of the total cost of the S$1 million cap per PV project. Index terms: CO2 gas, solar photovoltaic systems, fossil fuels. , Singapore, electric powerI. INTRODUCTIONElectric energy is produced by the combustion of non-renewable fossil fuels [1] which are not infinite and will eventually run out. There are several models developed to calculate fossil fuel depletion, but there are no definitive answers on when fossil fuels will actually be exhausted due to constantly changing consumption trends and reserves [2 ]. One of the models used to predict the rate of decline of fossil fuels is the modified Klass equation, as shown in the equation...... middle of article ......VII shows that there is a need for solar applications in Singapore for a cleaner environment. With its strategic location along the solar belt and high solar radiation, Singapore is a suitable location for the deployment of solar PV systems. The application of solar systems in Singapore makes it possible to generate electricity without relying on the burning of fossil fuels, hence the ability to meet the growing demand for electricity without having to worry about a sudden increase in prices fuels. Finally, with government support, more private sectors such as industries will be able to engage in renewable energy projects in buildings that will turn energy consumers into energy generators.AUTHORSLow YS, works at University of South Australia School of Electrical and Information Engineering, Mawson Lakes Blvd, Mawson Lakes (email: [email protected]).