Roof top solar refers to the installation of solar panels on the rooftops of residential, commercial, or industrial buildings to capture sunlight and convert it into electricity. The main functions of roof top solar systems include generating renewable energy, reducing reliance on traditional grid electricity, and contributing to a greener environment. Technologically, these systems are equipped with photovoltaic cells that absorb sunlight and convert it into usable electrical power through an inverter. They also often come with monitoring systems that track energy production and consumption. Applications of roof top solar are vast, from powering homes and businesses to supporting large-scale energy production in solar farms. It's a versatile solution that can significantly cut down utility bills and carbon footprint.