The increasing need for electrical energy is the root of the problem in this research. Saving electricity consumption is absolutely necessary, so that the limited electricity supply can meet the existing electricity consumption. Air Conditioning (AC) is one of the largest contributors to electricity consumption in buildings, with a percentage of 50% of the national scale electricity use. In conducting this research, the author uses the existing system development method, by implementing the existing prototyping design, so that users can turn off the AC remotely, using Internet of Things (IoT) technology. It is hoped that with this research, AC control can be carried out more easily, can be done anywhere, through the internet.