Analysis of the Impact of Solar Radiation on the Battery Charging Duration and Operation of a DC Solar-Powered Water Pump

Bakti Indra Kurniawan (Department of Electrical Engineering, Politeknik Negeri Malang, 65141, Indonesia.)
Mohammad Noor Hidayat (Department of Electrical Engineering, Politeknik Negeri Malang, 65141, Indonesia.)
Priya Surya Harijanto (Department of Electrical Engineering, Politeknik Negeri Malang, 65141, Indonesia.)
Ananda Setyo Abimanyu (Department of Electrical Engineering, Politeknik Negeri Malang, 65141, Indonesia.)
Naufaliawan Abraham (Department of Electrical Engineering, Politeknik Negeri Malang, 65141, Indonesia.)

Energy: Jurnal Ilmiah Ilmu-ilmu Teknik
Vol. 15 No. 2 (2025): ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK (July-November 2025 Edition)

This research examines the effect of solar irradiance on the performance of a solar-powered water pump (SWP). The primary objective is to determine how solar irradiance affects battery charging time and pump operational duration. Using a system consisting of a solar panel, a battery, and a pump in the Malang region, we collected data on both sunny and cloudy days. The results indicate that solar irradiance is a crucial determinant of the system's efficiency. On sunny days, battery charging is faster, and the pump can operate for a longer period. Conversely, on cloudy days, battery charging slows down, and the pump's duration becomes shorter. This study concludes that solar irradiance is a key factor in optimizing SWP systems, and the use of a battery is essential to ensure stable operation.