Exim smart meter for IoT-based renewable energy integration.

A smart grid is a power grid that integrates user-generated renewable electricity sources such as solar panels and wind turbines with the company's main grid. This small generator is called a microgrid. A smart meter is needed in the 4.0 revolution era to control and determine the use of voltage, current, power, and electrical energy used and integrate two energy sources at once from renewable energy (microgrid) with PLN (main grid). The working principle of smart meters uses Kirchhoff's current law; a series of 3 branches, namely two inputs and one output branch, is used as the basis for developing smart meters. Using PZEM004T as an AC power sensor module that captures current, voltage, power, frequency, and power factor data, it is sampled and compared in each input branch using the Nodemcu 8266 microcontroller. For data acquisition of voltage, current, power, and electrical energy stored through the Mysql database using IoT facilities without having to be where the tool is located. This smart meter can detect the direction of the electric power flow the customer is buying (importing), selling (exporting) or both. With its ability to perform two-way detection, apart from opening up various innovations in electricity services, this research can also contribute to accelerating the adoption of renewable energy in Indonesia. [ABSTRACT FROM AUTHOR]