Abstract:

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This paper aims to review the study on effect of temperature on the performance and efficiency of photovoltaic (PV) modules. Photovoltaic modules are used to convert sunlight to electricity, but their efficiency and power output can vary depending on environmental factors such as temperature. The photovoltaic generation is commonly used renewable power generation in the world but the solar cells performance decreases with increasing of panel temperature. The objective of this research is to review on the temperature effect on the solar photovoltaic (PV) power generation. The photovoltaic cells suffer efficiency drop as their operating temperature increases especially under high insolation level and cooling is beneficial. Characteristics parameters of selected photovoltaic modules are the short-circuit current (ISC), open-circuit voltage (VOC), and maximum power (PMAX). The increase in temperature leads to a decrease in module efficiency and a subsequent reduction in power output. This can be attributed to the negative temperature coefficient of the photovoltaic cells, which causes their voltage and current output to decrease as temperature rises. Some of the values recorded include a temperature of 50oC-120oC with a decrease in efficiency 20%-60%, 25oC-60oC of temperature and efficiency 10%-25%, another temperature of 20oC-80oC and efficiency 5%-25%, it shows that when the temperature increases the efficiency decrease. An intermediate temperature and efficiency was also recorded -20oC-50oC and 20%-50% for the temperature and efficiency respectively. Finally a recorded temperature decreases while the efficiency decreases 25oC-60oC and 40%-55% for the temperature and efficiency respectively.

Keyward(s): Photovoltaic modules, power efficiency, power temperature

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