IMAPCT OF CLIMATE CHANGE ON PHOTOVOLTAIC UTILIZATION ON TIBETAN PLATEAU AND ITS CAUSES

Jiang Ying; Shen Yanbo

doi:10.19912/j.0254-0096.tynxb.2024-0628

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 447-454. DOI: 10.19912/j.0254-0096.tynxb.2024-0628

IMAPCT OF CLIMATE CHANGE ON PHOTOVOLTAIC UTILIZATION ON TIBETAN PLATEAU AND ITS CAUSES

Jiang Ying^1,2, Shen Yanbo^1,2

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Abstract

This paper uses measured data to analyze and quantitatively study the variation characteristics of key meteorological elements such as radiation for photovoltaic utilization on the Qinghai-Tibet Plateau in the past 30 years and their impact and extent on photovoltaic utilization. The research finds that: 1） During the past 30 years, in the Tibetan Plateau, the annual total solar irradiance showed a significant decreasing trend, the annual net radiation showed a slight increasing trend, the vertical direct radiation and net radiation show a significant decreasing trend, and the scattered radiation and reflected radiation show a significant increasing trend. 2） In the past 30 years, the temperature of tracked and fixed solar cells on the Tibetan Plateau has shown a significant increasing trend, and its reduction coefficient of meteorological factors has also shown an increasing trend. 3） Compared with the increase in wind speed which enhances the heat dissipation capacity of solar cells, the rise in air temperature makes the solar cells more capable of heating up. In the past nearly 30 years, due to the combined impact of increasing human activities and climate change, the increase of cloud cover and precipitation (the increase of water vapor molecules in the atmosphere） and the decrease of visibility (the increase of aerosol particles in the atmosphere） in the Tibetan Plateau have led to the decrease in sunshine hours, which is the direct cause of the decrease in direct radiation. The main reasons for the decrease trend of total radiation and direct radiation on the plateau surface, and the increase trend of scattered radiation and reflected radiation are man-made buildings increased and the change of underlying surface’s reflection characteristics. The temperature of the plateau showed an obvious increasing trend, which increases the temperature of solar cells, and the reduction coefficient of meteorological factors showed an increasing trend.

Key words

solar energy / climate change / solar cell / temperature / reduction rate of meteorological factors

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Jiang Ying, Shen Yanbo. IMAPCT OF CLIMATE CHANGE ON PHOTOVOLTAIC UTILIZATION ON TIBETAN PLATEAU AND ITS CAUSES[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 447-454 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0628

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