Solar light is a viable source of electrical energy through solar panels. However, prolonged exposure to intense sunlight can damage these panels. To mitigate this, a ground water-based cooling system was experimentally investigated for its effectiveness. The study employed a 30x40 cm solar panel, with untreated panels as controls. Water flowed continuously through the panel via top and bottom holes, mimicking ground water circulation. The cooling method achieved a significant temperature reduction, lowering the surface temperature by up to 12.5°C and the back surface temperature by up to 14.5°C. The output power of panel with cooling method has lower decreasement by 0.8 Watt, while the control has decreasement up to 1.3 Watt. The control PV has average output power 4.54 Watt while the Cooling PV with minimal rate of water has average output power 5.11 Watt. This efficient cooling system positively impacted the panel's output power and temperature stability compared to the control group. The water effectively transported and dissipated heat to the surrounding ground. The thermal conductivity was determined to be 3.14 W/mK. The soil's heat rate was determined to be 0.003 J/s, ensuring effective heat dissipation without concern..
