Single Axis Automatic Solar Tracking System

Ms. Gayathri Tanduri
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Ms. Gayathri Tanduri: Asst. Professor in ECE AVNIET, SR University, Warangal.

International Journal of Research and Scientific Innovation, 2025, vol. 12, issue 7, 2188-2192

Abstract: The quest for efficient renewable energy solutions has led to the increasing adoption of solar power as a sustainable alternative to conventional energy sources. A critical factor in maximizing solar energy capture is the ability of solar panels to track the sun’s movement throughout the day. This project presents the design and implementation of an automatic solar tracker, aimed at enhancing solar energy efficiency through real-time adjustments in panel orientation. The system utilizes a microcontroller (Arduino Uno SMD) alongside various components, including Light Dependent Resistor (LDR) sensors, a SG90 micro servo motor, a TP4056 charging module, and 18650 rechargeable batteries.The automatic solar tracking system is designed to continuously adjust the position of the solar panel to follow the sun’s trajectory from sunrise to sunset. By employing an array of LDR sensors, the system detects the intensity of sunlight and calculates the optimal angle for the solar panel. The data from the LDR sensors is processed by the Arduino microcontroller, which controls the servo motor to rotate the solar panel accordingly, ensuring maximum exposure to sunlight.

Date: 2025
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