Rancang Bangun Solar Power Meter berbasis Arduino Uno dengan Data Logger untuk Pengukuran Insolasi dan Iradiasi Sinar Matahari

In planning the installation of solar panels at a location, it is necessary to have irradiance data that location. Solar obtained through direct measurements using meter. measuring instruments usually use one three types sensors, including thermopile (pyranometer), cells, or photodiodes. Each has advantages and disadvantages. The cell sensors are they faster response sunlight, more in line with production energy produced by economical price compared other sensors. directly proportional short-circuit current cell. aim this research design an Arduino Uno-based device measure insolation equipped logger support analysis. power meter designed reference short circuit 455 mA. microcontroller board used UNO ATmega328 while sensor WCS2801 sensitivity 2mA/mV. Irradiation, recorded stored every minute datalogger SD card capacity 16 GB. average % error when testing comparison readings photodiode-based 1.747%. highest point sun 5.56.kWh/m2 during three-day period logging achieved positioned horizontally on terrace.