In general, electrical energy consumption has increased, in line with economic growth and lifestyle, the higher the economic growth of an area, the higher the use of electrical energy consumption in the area, in urban areas office buildings become one of the largest contributors to electrical energy consumption. In this case the conservation of electrical energy is needed. To handle the above problems, the author will design an electrical energy conservation and monitoring system in a room that will be used for teamwork meetings. With the method of calculating the size of the room and the number of people in the room to determine how many BTU / h is needed to cool the room, the use of lighting will also be regulated and can only turn on when needed, so that the use of electrical energy is not wasted. To calculate the number of people entering the room the author uses an infrared sensor, while to regulate the ignition of the lights the author uses a Passive InfraRed (PIR) motion detection sensor. This electric energy saving monitoring system can be monitored using an application on an android phone, the android application is connected to the room’s electrical system using the Internet Of Things (IOT).

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