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The electrical energy is an energy that is needed by the people. The electrical energy, to date, came from several power plants, such as electric steam power plants and diesel power plants. The community must pay the service provider, such as the State Electricity Company (PLN) with a rising cost, to obtain electrical energy. However, there were other alternative energies, for example, solar power plants and windmill power plants. The hybrid system is a combination of two or more different energy sources to meet the demand. The hybrid system was also expected to solve the problem that might arise in utilizing other energies, the site condition, and the unpredicted situation on the power plant. The solution to these problems was a hybrid using a monitoring device with ACS 712 sensor current parameter, ZMPT101B voltage sensor, LDR solar sensor, hybrid electrical energy power, controller for four electrical source inputs and three electrical sources for the output load. The device used Arduino Mega 2560 for data processing, ESP 8266 as the module to connect the device to the internet network and relay as the control actuator. Monitoring and controlling the device used the internet network and the implementation of the Internet of Things (IoT) on the hybrid system plants (PLN, generator, solar power plant, windmill power plant) that was integrated into the website. The overall test resulted in the comparison average error value between the device and the measuring instrument of the current, voltage, and power. The test also resulted in the average error value of the response time for the four input contacts and three output contacts. The average error value of the current was 2.13%, the average error value of the voltage was 0.7%, and the average error value from the power parameter was 0%. Meanwhile, the average error value of response time was 0.23 seconds. Based on the above results, it can be concluded that the monitoring and controlling system from the website with the implementation of the IoT in the hybrid power system was worked following the design.

Monitoring and Controlling The Hybrid System Using The Internet Of Things For Energy Transaction