Konversi Energi Listrik Berbasis Panel Surya Sebagai Penyuplai Daya Baterai Pada Robot Kapal Pembersih Sampah Sungai

Kurniawan, Bayu (2026) Konversi Energi Listrik Berbasis Panel Surya Sebagai Penyuplai Daya Baterai Pada Robot Kapal Pembersih Sampah Sungai. Undergraduate thesis, Politeknik Negeri Jember.

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Abstract

River pollution due to indiscriminate waste disposal is a serious environmental problem in Indonesia. This study analyzes the effect of solar panel usage on battery charging efficiency in a remote-controlled river waste cleaning robot boat. The system integrates a 30 Wp polycrystalline solar panel, a PWM Solar Charge Controller (SCC), a 3S 20 Ah lithium-ion battery, and a DC-DC step-down module. Results show that the solar panel produced a maximum power of 35.724 W with an average conversion efficiency of 17.72%. The battery was fully charged in 3.75 hours using two charging phases (CC and CV), supplying an average power of 19.50 W for 2 hours of operation with a theoretical capacity of 12.19 hours. The solar panel slowed voltage drop with a maximum difference of 1.06 V compared to the condition without panels. Energy balance analysis indicated a surplus of 54.30 Wh/day from a total production of 132.30 Wh/day against a demand of 78.00 Wh/day, confirming this system as a viable and environmentally friendly independent energy solution

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