Inadequate street lighting in urban areas consumes much energy to improve safety for pedestrians and drivers. Nevertheless, conventional street lighting solutions imply high energy consumption and significant \(\text {CO}_{2}\) emissions, so effective change is required. To address this problem, this paper proposes using a smart energy generation system involving renewable energy sources to supply power to streetlights. At the centre of our strategy is deploying piezoelectric discs beneath footpaths next to these streetlights. These discs are designed so that every time pedestrians move on them, the mechanical pressure created is translated to electrical energy, which in turn powers the lights. Also, we use passive infrared (PIR) sensors in the streetlights, these sensors detect nearby movement to switch on the lights. This feature greatly reduces the amount of wasted energy by switching off the lights when there is no movement. Development of smart city projects demonstrate how modern cities can gradually transition towards the use of more sustainable and efficient infrastructure.