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<p>In this study, observational data from a photovoltaic (PV) power plant in the mid-latitude Gobi region were investigated. The energy balance and microclimate differences between the PV site and reference (REF) site during different seasons were analysed. The relationships between environmental factors and sensible heat flux at the PV plant were investigated using back propagation (BP) neural networks. It was revealed that PV panels reduced the albedo the albedo of the integrated surface, resulting in increased solar radiation absorption. The solar radiation absorbed by the system was primarily converted into sensible heat, with a smaller portion absorbed by the soil, and the smallest portion converted into electricity. The notable discrepancy in sensible heat flux between the in-situ and ex-situ environments of the station during the diurnal period gives rise to a warming effect on the air near the PV panels. However, the shading effect of PV panels mitigated the local warming effect. The shading area was influenced by the solar elevation angle, resulting in a decreasing trend in the warming effect from summer to winter. During snow-free seasons, the effect of air warming at the PV plant during the day was alleviated at night; however, during periods of snow cover, the warming of the air is more pronounced at night.&#xa0;</p>

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Quantitative study of the environmental thermal effects of a photovoltaic power plant in the Gobi area—from the perspective of energy distribution

  • 期刊论文

  • 发表日期：

    2025年3月11日

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  • Jiang Ying,
  • Xiaoqing Gao,
  • Liwei Yang,
  • Zhenchao Li,
  • Yi Liu

摘要

In this study, observational data from a photovoltaic (PV) power plant in the mid-latitude Gobi region were investigated. The energy balance and microclimate differences between the PV site and reference (REF) site during different seasons were analysed. The relationships between environmental factors and sensible heat flux at the PV plant were investigated using back propagation (BP) neural networks. It was revealed that PV panels reduced the albedo the albedo of the integrated surface, resulting in increased solar radiation absorption. The solar radiation absorbed by the system was primarily converted into sensible heat, with a smaller portion absorbed by the soil, and the smallest portion converted into electricity. The notable discrepancy in sensible heat flux between the in-situ and ex-situ environments of the station during the diurnal period gives rise to a warming effect on the air near the PV panels. However, the shading effect of PV panels mitigated the local warming effect. The shading area was influenced by the solar elevation angle, resulting in a decreasing trend in the warming effect from summer to winter. During snow-free seasons, the effect of air warming at the PV plant during the day was alleviated at night; however, during periods of snow cover, the warming of the air is more pronounced at night.