Growing energy demand, the continuous decline of existing fossil fuel sources, and growing concerns about environmental pollution have led mankind to use solar energy, wind energy, etc. Renewable energy is considered a safe and sustainable way to obtain clean energy and reduce reliance on traditional energy sources. Solar energy is becoming more and more important. Especially in Egypt, it accounts for a large proportion of the energy used due to its vast area and large periods of brightness. Converting solar energy into electrical energy using solar cells is still expensive and inefficient. It is applied to various mechanisms to increase the efficiency of solar cells to reduce cost.
Solar tracking system is the most suitable technology to increase the efficiency of solar cells by tracking the sun. Therefore, in this paper, four LDRs (Light Dependent Resistors) as sensors, stepper and DC (Direct Current) motors as actuators (M1, M2), and microcontroller PIC16F877A as controllers are used to control a solar panel in two axes. covers how. The prototype of the solar tracking system has a precision control mechanism that can automatically track the sun and get the maximum possible energy from the solar cell. The results demonstrated that: This model has high accuracy in tracking the movement of the sun throughout the day.
Mechanical Sun tracker movement that covers east to west to optimize sunrise to sunset and north to west South or vice versa as an optimization of annual solar movement. The research phase begins as follows. Solar tracker design, controller system design, development, testing and analysis. Measurement data obtained by testing development results according to system performance. After the testing phase, solar panel mounting can follow. Sunlight from all angles overall, from sunrise to sunset and sun movement. result of angle Replacing the solar tracker for 5 days produces on average 507 watts per day, but otherwise If you use the sun tracker to produce 403 watts per day and use the actuator for 5 days, The average is 12.54 watts.