Dust deposition on photovoltaic (PV) surfaces reduces their efficiency and energy generation. Hydrophobic coatings can minimize this issue by preventing soil build-up. In this study, hydrophobic coatings with different water contact angles (WCA) were applied to PV mini-modules. Coated and uncoated modules were exposed to dust in a simulated soiling chamber at various tilt angles. Results show that coated modules had significantly less soil deposition, indicating that hydrophobic coatings effectively reduce soiling and the associated loss of PV performance. The IV curve shows the effect of soiling on uncoated and coated mini-modules at two tilt angles. At 90°, the drop in short circuit current (Isc) is less than 1% for all cases, indicating minimal dust adherence. At 45°, the uncoated module shows a 9.9% drop in Isc, while the coated modules show lower drops: 2.9%, 2.1%, and 1.2% for water contact angles of 106°, 114°, and 126°, respectively. Higher WCA result in less dust accumulation and smaller drops in Isc. This work was done by PhD students Anand Abhinav and Shivam Vishwanath, working under the guidance of Prof. Sudhanshu Mallick