Megacities’ energy supply is regarded as a hot research area in the emerging field of urban management, particularly in developing nations. The smart city concept, which begins with an overview of the sustainable development goals, offers a novel approach to energy provision in a city through the use of artificial intelligence (AI), renewable energy sources like photovoltaic (PV) technologies, and transformational participation (TP) based on citizen-motivating programs. A variety of energy sources are needed to meet the need for dependable and reasonably priced electricity, with production costs frequently surpassing environmental considerations. The idea behind smart cities is an urban environment that uses data and technology to optimize energy use and improve quality of life. In this perspective, solar energy is essential since it offers a dependable, clean power supply that adheres to sustainability ideals. Smart cities use solar energy to offer a seamless and connected urban experience, from solar-powered electric vehicle charging stations to intelligent street lighting powered by solar panels. Furthermore, cutting-edge energy management technologies guarantee efficient energy use, cutting expenses, and waste.