SOLAR ENERGY RESOURCES SPATIO-TEMPORAL DISTRIBUTION CHARACTERISTICS AND REGIONALIZATION EVALUATION IN YUNNAN PROVINCE

Fan Lizhang; Xie Ming&#x02019;en; Yang Xiaopeng; Yang Pengwu; Xiao Ruidi

doi:10.19912/j.0254-0096.tynxb.2023-2112

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 496-504. DOI: 10.19912/j.0254-0096.tynxb.2023-2112

SOLAR ENERGY RESOURCES SPATIO-TEMPORAL DISTRIBUTION CHARACTERISTICS AND REGIONALIZATION EVALUATION IN YUNNAN PROVINCE

Fan Lizhang¹, Xie Ming’en², Yang Xiaopeng¹, Yang Pengwu¹, Xiao Ruidi¹

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Abstract

The evaluation of solar energy resources is the basis and key of the development and utilization of solar energy resources. Yunnan is located in the plateau area of low latitude in our country and is one of the provinces rich in solar energy resources. In order to systematically evaluate the solar energy resources in Yunnan, based on the Yunnan clean energy meteorological assessment project completed in recent years, a refined assessment framework and model of solar energy resources in Yunnan were initially constructed. Based on the total solar radiation data of 7 radiation stations and the insolation data of 126 stations in Yunnan, the time series of total solar radiation in Yunnan from 1961 to 2015 was established. On this basis, the spatial and temporal distribution characteristics of sunshine duration, sunshine percentage and total solar radiation in Yunnan were analyzed. The results show that the total solar radiation in Yunnan is more in the central part, followed by the southwest, and less in the east and northwest. The annual total solar radiation in Yunnan ranges from 905 kWh/m² to 1800 kWh/m² which is generally high in the west and low in the east except in the northwest edge of Yunnan. The solar energy resources in Yunnan can be divided into five levels. The central Yunnan has the best solar energy resources, and the southwest Yunnan has the second highest solar en

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solar energy / sunshine duration / solar radiation / ArcGIS / spatial-temporal distribution / regionalization evaluation / Yunnan

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Fan Lizhang, Xie Ming’en, Yang Xiaopeng, Yang Pengwu, Xiao Ruidi. SOLAR ENERGY RESOURCES SPATIO-TEMPORAL DISTRIBUTION CHARACTERISTICS AND REGIONALIZATION EVALUATION IN YUNNAN PROVINCE[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 496-504 https://doi.org/10.19912/j.0254-0096.tynxb.2023-2112

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