Cloud-based wireless sensor network smart power outlet for building energy management system

Energy sufficiency to build the world through the industrial revolution 4.0 has become a hot topic of research on energy since the last decade. Various researchers from all over the world have been competing in how to produce alternative electricity as an additional option from conventional power plants with the smallest investment figures. The specific objective of this research is to create technology for energy management in off-grid hybrid-powered buildings so that investment in hybrid electricity systems is optimal. The smart power outlet used ACS-712 current sensor and a ZMPT101B voltage sensor to measure the electricity. Arduino Nano microcontroller and ESP8266 NodeMCU made the device monitorable through the internet. Added a relay module to switch the device remotely. Also, there were micro SD module and DS3231 RTC to log the data. This device used the smartphone interface with the Android operating system. The smart power outlet experiment result was good, the average error was 3.27% with one data shift in the data logging between the delivery time and the timer in a 30 seconds gap.