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Evaluating the Performance of Different PV Modules Technology Due to Dust Accumulation in Tripoli Region

The dust accumulated on the surface of the photovoltaic (PV) module affects its efficiency, which leads to a significant decrease in the output power and blocks part of the radiation falling on the cell. In this study, the performance of photovoltaic module and the effect of dust deposition on them were evaluated in the climatic conditions of Tripoli area. The experiment was conducted in an outdoor environment where six modules of three different technologies monocrystaline, polycrystalline and amorphous each two identical modules of model type. These modules are installed at tilt angle of 45° facing south. One module was left unclean, and the other was cleaned each time before measurement for comparison. The output power and temperature of each module, as well as the radiation, were measured by a photovoltaic peak power measuring (PVPM) (1000C40) device. The results indicate that dust deposition has effect on short circuit current greater than on open circuit voltage. The maximum output power loss on the different PV modules was determined to be 10.74%, 10.95%, and 13.72% for poly, mono, and amorphous module, respectively. Therefore, it was observed that amorphous module exposed higher losses of output power compared to other two technologies tested.