<?xml version="1.0" encoding="UTF-8"?> <article key="pdf/10643" mdate="2010-08-24 00:00:00"> <author>Bihter Yerli and Mustafa K. Kaymak and Ercan 陌zgi and Ahmet 脰ztopal and Ahmet D. 艦ahin</author> <title>Effect of Derating Factors on Photovoltaics under Climatic Conditions of Istanbul</title> <pages>1303 - 1307</pages> <year>2010</year> <volume>4</volume> <number>8</number> <journal>International Journal of Energy and Power Engineering</journal> <ee>https://publications.waset.org/pdf/10643</ee> <url>https://publications.waset.org/vol/44</url> <publisher>World Academy of Science, Engineering and Technology</publisher> <abstract>As known that efficiency of photovoltaic cells is not high as desired level. Efficiency of PVs could be improved by selecting convenient locations that have high solar irradiation, sunshine duration, mild temperature, low level air pollution and dust concentration. Additionally, some environmental parameters called derating factors effect to decrease PV efficiencies such as cloud, high temperature, aerosol optical depth, high dust concentration, shadow, snow, humidity etc. In this paper, all parameters that effect PV efficiency are considered in detail under climatic conditions of Istanbul. A 750 Wp PV system with measurement devices is constructed in Maslak campus of Istanbul Technical University.</abstract> <index>Open Science Index 44, 2010</index> </article>