Impact of temperature and dust deposition on PV panel performance

It is necessary to understand the factors that influence PV power output to predict it in the short and long term. By tabulation and graphical explanation, this paper explores the impact of temperature and dust deposition on PV panel performance by evaluating the performance of a PV panel 120Wp. This experiment was conducted at Al-Nasiriyah city ( 31°03' N, 46°16' E ), environmental variables include those variables. Solar radiance, the temperature of the module, accumulation of dust. In January, the solar panel tested the effect of temperature, and dust on the output power and its performance. At 180˚ south, and 45˚ elevation, the solar panel is omitted. The results show that the solar panel operates at maximum efficiency reached 14.97 % during the month. The reduction in power due to the dust accumulated after 15 days of exposure to environmental conditions was 5%. .The photovoltaic (PV) panel performance is affected by high cell temperatures. The settlement of dust on panel surfaces may or not be uniform depending on environmental factors such as ambient temperature, wind, and rainfall. It is very important to investigate the influence of dust settlement on the operating characteristics of PV panels, to better understand the losses in performance attributed to soiling. The current-voltage (I-V) Characteristics of the PV panel reveal extensive information to support the degradation analysis of the panel. This paper attempts to understand performance losses in (I-V) characteristics under varying dust deposition are discussed.