<![CDATA[Solar energy is an inexhaustible source of renewable energy. Indonesia, which is a tropical country that is crossed by the equator, has a fairly high solar intensity per year. With this potential, it is necessary to process or develop the alternative energy. One way to develop this potential is to use solar panels that can convert solar energy into electrical energy. In this study, we developed a data logger system design tool for the installation of an Arduino-based 600 W inverter grid tie (GTI) solar panel. Nowadays, observation or monitoring still uses conventional or manual methods. Therefore, in making this task we made a voltage, current, and power monitoring tool on a solar panel that functions as a current, voltage and power sensor with the Arduino Mega microcontroller as an output data store which will be communicated via Android. The results of the data will be analyzed by calculating the break even point (BEP) to determine the feasibility of procuring On-Grid solar panel systems. From the BEP calculation results, the average energy supply from solar panels is 5% or every month solar panels can reduce costs by Rp.42,000. From these results it is known that the value of the BEP from the procurement of On-Grid solar panels can be achieved for 7 years and 4 months, only then it will be profitable.]]>
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