An IoT Solar Lamp with PV System

Abstract

This research paper aims to increase the efficiency of electric usage via IoT technology. An IoT Solar Lamp is a system that aims to use solar energy as the alternative green energy to reduce AC power line consumption from our national grid system (PLN). There has been some successful product such as this one (e.g. branded Sonoff switch), but it has not used Solar PV as the main source of green energy. Therefore this system is unique because it promotes green energy usage in household application. This remote controlled lamp has 2 pieces of solid-state relay that choose electricity supplies, either from the AC power line or from the battery. The battery will be charged by a 50Wp solar panel and this system uses NodeMCU-ESP8266 that has connectivity to the internet, such that the users can choose voltage supply source and turn the lamp on or off, with a smartphone. The result of this study shows that the system can be powered by 12Volt-18Ah battery for approximately 3 hours.