Present scenario of energy crisis not only demands to increase generation of energy but also to utilize it as per legitimate requirement to conserve at public places like educational institutes, where the users are more and no one cares to switch OFF appliances when not required. The aim of this project is to design cost effective automated system which can be easily incorporated in academic institution especially in the class rooms to conserve the energy. Lights and fans switched ON and OFF as per requirement for number of students entered in the class room through person counting subsystem. The implementation is made simpler by using sensor to detect person and compact circuitry built around 8051 microcontroller programs. Through this system, the author wishes to inculcate discipline in the students by giving no option but to occupy the front row first and so on and back benchers to come in front and then only have the comfort of light and fan and at the same time want to help academic institutes to save money on their power bills and contribute in reducingthe emission of green house gases in environment.