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首页> 外文期刊>International Journal of Climatology: A Journal of the Royal Meteorological Society >Potential impacts of solar arrays on regional climate and on array efficiency
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Potential impacts of solar arrays on regional climate and on array efficiency

机译：太阳阵列对区域气候和阵列效率的潜在影响

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摘要

World population and industrialization have increased significantly, leading to an increase in global energy demand, mainly relying on fossil fuels. Use of alternative energy sources such as wind, hydro and solar has been steadily increasing. Australia is a vast continent which receives an average 58 million PJ of energy from the sun annually. Given this resource potential, one could envisage construction of massive solar farms to help meet energy demands. If such constructions went ahead, their potential benefits/impacts on the climate over and surrounding the solar arrays would need to be investigated. Here, we study the potential climatic impacts over and in the environment surrounding massive hypothetical solar sites across Australia using a global stretched grid atmospheric model. The solar farms are represented by modelling the effects of perturbing surface albedo and surface roughness. The sensitivity experiments incorporate different combinations of surface albedos, shapes and locations of the solar farms, with a focus on the summer season. Our study suggests that depending on array sizes, locations, orientations and surface albedo (potentially increased by means of highly reflective in-fill material), the climate over solar arrays could be modified significantly. Over the arrays with positive albedo perturbation, rainfall would decrease by around 30-70%, and daytime maximum air temperatures would decrease up to 10 degrees C. In addition, solar irradiance would increase by around 5-20%, which combined with the air temperature cooling, would lead to an enhanced solar power yield up to 25%.
机译：世界人口和产业化显着增加，导致全球能源需求增加，主要依靠化石燃料。使用替代能源，如风，水电和太阳能稳步增加。澳大利亚是一个庞大的大陆，每年从太阳下获得5800万PJ的能量。鉴于这种资源潜力，人们可以设想大规模太阳能农场的建设，以帮助满足能源需求。如果此类建筑前进，则需要调查它们对环境的潜在福利/对气候的影响，需要调查太阳阵列。在这里，我们使用全球拉伸网格大气模型研究澳大利亚围绕澳大利亚的大规模假想太阳能遗址的潜在气候影响。通过模拟扰动表面反向和表面粗糙度的影响来表示太阳能农场。敏感性实验包括太阳能农场的表面玻璃玻璃，形状和地点的不同组合，重点关注夏季。我们的研究表明，取决于阵列尺寸，位置，方向和表面反照杯（潜在地通过高度反射填充材料增加），可以显着修改太阳能阵列的气候。在具有阳性反冲扰动的阵列上，降雨将减少约30-70％，日间最大空气温度下降至10℃。此外，太阳辐照度将增加约5-20％，与空气相结合温度冷却，将导致增强的太阳能产量高达25％。

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