Abstract: Now a days the use of electricity is a measure issue in an India. Where the wastage of light observed highly in street lighting area. Street light system performs an important role for providing security at night times, for avoiding accidents during night time and also for avoiding many other problems. The street light can be controlled manually but this method is very costly and difficult to monitor, it involves high power consumption and this system is time consuming. So to avoid this problem we can automatically monitor street lighting system by using GSM. The problem of power consumption can be minimized by using renewable energy source instead of using conventional source. Renewable energy causes energy saving and system is ecofriendly. By using renewable energy sources many problems can be solved. In this paper we make a review on renewable sources, lampposts and communication technologies.

Keywords: Renewable energy source, street lights, communication technology.