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Outdoor testing of photovoltaic modules during summer in Taxila, Pakistan

2014; Vinča Institute of Nuclear Sciences; Volume: 20; Issue: 1 Linguagem: Inglês

10.2298/tsci131216025a

2334-7163

Hafız Muhammad Ali, M. Rezwanul Mahmood, Muhammad Bashir, Muzaffar Ali, Aysha Siddiqui,

Silicon and Solar Cell Technologies

An experimental study has been carried out to measure the performance of commercially available photovoltaic modules during summer months in the climate of Taxila, near the capital of Pakistan. The modules used in the study are monocrystalline silicon (c-Si), polycrystalline silicon (p-Si) and single junction amorphous silicon (a-Si). The analysis has been focused on the measurement of module efficiency, performance ratio and temperature of each module at actual operating conditions using outdoor monitoring facility. The measured results are compared with the already published data of peak winter month at the same site. Overall, the monocrystalline module showed high average module efficiency while amorphous silicon module was better in term of average performance ratio. Furthermore, the module efficiency and performance ratio has shown decreasing trend with increase of module temperature. It was found that modules have much higher temperature in summer months (about 20?C higher) and showed low efficiency and performance ratio than peak winter month. The average ambient temperature varied from 18.1?C to 38.6?C from winter to summer.