Development of a Single-Axis Sun Seeker using Three Sensors

  • Ajayi Isaac Ayodele Prototype Engineering Development Institute Ilesa, Osun State, Nigeria
  • Idowu Olabode Ebenezer Works Department, Ondo State Customary Court of Appeal, Akure, Nigeria


The output power generated by the solar photovoltaic panel is directly proportional to the amount of solar energy it receives. Therefore, for maximum efficiency, a solar photovoltaic panel must be perpendicular to the sun. As a result of this, a tracking device is required to ensure that solar panels are always directly perpendicular to the direct component of the sun. Such a tracking device is referred to as a sun seeker. This research work describes the development of a single-axis sun seeker using three sensors. Light-dependent resistors are used as sensors. The light intensity received by two of the sensors is compared by two comparators and an appropriate signal is sent to the driving mechanism which moves the solar panel tray until the right and left sensors receive an equal amount of light intensity. The middle sensor was designed to activate the speed control unit of the system when it senses the required light intensity. The whole system runs on a 12V rechargeable battery. A battery charger circuit with automatic cut-off was incorporated to the design to keep the battery topped-up and to prevent overcharging.


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[1.] Mohamed Shaaba and J. O. Petinrin, “Renewable energy potentials in Nigeria: Meeting rural energy needs”, Renewable and Sustainable Energy Reviews, vol 29, pp. 72-84, January 2014.
[2.] Suleiman Lawal Nadabo, “Renewable energy as a solution to Nigeria energy crisis”, Final year thesis report at Vaasa University of Applied Sciences, 2010, unpublished.
[3.] Jing-Min Wang and Chia-Liang Lu, “Design and implementation of a sun tracker with a dual-axis single motor for an optical sensor-based photovoltaic system”, Sensors, vol. 13, issue 3, pp. 3157-3168, March 2013.
[4.] Shrishti Rana, “A study on automatic dual axis solar tracker system using 555 Timer”, International Journal of Technical Research and Applications, vol. 1, issue 4, pp. 77-85, 2013.
[5.] Madhusudan Gohil, Mayuri M. Tahilramani and Maushami Desai, “Microcontroller based solar power system with grid synchronization”, Int. Journal of Engineering Research and development, pp. 1-7, April 2015.
[6.] Md. Tanvir Arafat Khan, S. M. Shahrear Tanzil, Rifat Rahman and S. M. Shafiul Alam, “Design and construction of an automatic solar tracking system”, 6th International Conference on Electrical and Computer Engineering, Dhaka, pp. 326-329, 18-20 December 2010.
[7.] Subarto Kumar Ghosh, Mohammad Hasanuzzaman Shawon, Ashifur Rahman and Rifat Abdullah, “Modeling of PV array and analysis of different parameters”, International Journal of Advancements in Research and Technology, vol. 2, issue 5, pp. 358-363, M ay 2013.
[8.] A. K. Saxena and V. Dutta, “A Versatile Microprocessor based controller for solar tracking”, Photovoltaic Specialists Conference, USA, vol. 2, pp. 1105-1109, 21-25 May 1990.
[9.] M. A. Panait and T. Tudorache, “A simple neural network solar tracker for optimizing conversion efficiency in off-grid solar generators”, Renewable Energy and Power Quality Journal, vol. 1, no. 6, pp. 256-260, March 2008.
[10.] U. K. Okpeki and S. O. Otuagoma, “Design and construction of a bi–directional solar tracking system”, International Journal Of Engineering And Science, vol. 2, issue 5, pp. 32-38 , February 2013.
[11.] H. Mousazadeh, A. Keyhani, A. Javadi, H. Mobli, K. Abrinia and A. Sharifi, “A review of principle and sun-tracking methods for maximizing solar systems output”, Renewable and Sustainable Energy Reviews, vol. 13, issue 8, pp. 1800-1818, October 2009.
[12.] F. Shama, G. H. Roshani, A. Ahmadi and S. Roshani, “A novel design and experimental study for a two-axis sun tracker”, Power and Energy Engineering Conference, Wuhan, 25-28 March 2011.
[13.] H. A. Attia, and B. N. Getu, “Design and simulation of solar tracking system for optimum energy absorption”, International Journal of Thermal and Environmental Engineering, vol. 8, no. 1, pp. 17-24, 2014.
[14.] Han Dong, Wang Zhichao, Shen Huan, Xu GuiLi and Li FangPei, “Research and design on a robust sun-tracker”, International Conference on Sustainable Power Generation and Supply, China, pp. 1-6, 6-7 April 2009.
[15.] O. Bingol, A. Altinta, and Yildirhan Oner, “Microcontroller based solar-tracking system and its implementation”, Journal of Engineering Sciences, vol. 12, pp. 243-248, January 2006.
[16.] M. F. Khan and R. L. Ali, “Automatic sun tracking system,” All Pakistan Engineering Conference, Pakistan, May 2005.
How to Cite
AYODELE, Ajayi Isaac; EBENEZER, Idowu Olabode. Development of a Single-Axis Sun Seeker using Three Sensors. International Journal of Research and Engineering, [S.l.], v. 5, n. 6, p. 434-438, july 2018. ISSN 2348-7860. Available at: <>. Date accessed: 01 june 2020. doi: