Solar is the energy source that has the potential to become the backbone of the country’s energy supply in the long term.Rooftop solar power is a back-up power source which is being increasingly embraced by commercial, industrial and residential consumers as a significant contributor to their energy mix and because it combines on-site generation of power, utilising unused rooftop space, reasonable cost, reduction in transmission and distribution losses.The rooftop PV system is photovoltaic system that has its electricity generating solar panels mounted on the rooftop of buildings.