The project is designed to run solar on renewable energy source on solar and to detect vehicle movement on highways and then to switch on only a block of street lights ahead of it (vehicle), and then to switch off the trailing lights to save energy .Traditionally during night, all the lights on the highway remain switched on for better visibility to the running vehicles. But lots of energy is wasted when there is no vehicular movement. This system also has inbuilt day/night sensing techniques. This proposed system provides a solution for energy saving. This is achieved by sensing an approaching vehicle and then switching on a block of street lights ahead of the vehicle. As the vehicle passes by, the trailing lights gets switched off automatically. Thus, the system saves a lot of energy. If there are no vehicles on the highway, then all the lights remain off.