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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >ASSESSMENT OF THE INTER-ANNUAL VARIABILITY OF THE GLOBAL HORIZONTAL IRRADIANCE IN THE ATACAMA DESERT OF CHILE
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ASSESSMENT OF THE INTER-ANNUAL VARIABILITY OF THE GLOBAL HORIZONTAL IRRADIANCE IN THE ATACAMA DESERT OF CHILE

机译：评估智利阿塔卡马沙漠的全球水平辐照区年间变异性

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The inter-annual variability (IAV) of the solar resource is an important uncertainty component in annual energy production (AEP) estimates of photovoltaic (PV) plants. Based on studies in the Mediterranean and Black Sea region, a figure of 4 to 6% is sometimes used by consultants. For the extremely arid climates in the Atacama Desert in the North of Chile such generic values are expected to unnecessarily penalise developers seeking project financing. In the absence of reliable and consistent long-term ground measurements for this region, and based on previous in-house validation work and industry experience, long-term mesoscale satellite-derived datasets from the SolarGIS? database were found to be the best available data source to estimate the IAV of the global horizontal irradiance (GHI). It was found that none of the 14 sample sites considered in this study displayed an IAV exceeding 2%. While this result is subject to limitations, the observed performance of the model relative to measured data suggests that the uncertainty in the IAV value is small compared to the systematic error that otherwise arises from using a 4 to 6% generic figure for sites in the Atacama.
机译：太阳能资源的年间变异性（IAV）是光伏（PV）植物的年能生产（AEP）估计中的重要不确定性组成部分。基于地中海和黑海地区的研究，顾问有时使用4〜6％的数字。对于智利北部的Atacama沙漠中的极其干旱的气候，这种通用价值观预计会不必要地惩罚寻求项目融资的开发人员。在没有可靠和一致的长期地面测量的区域，并基于以前的内部验证工作和行业经验，来自Solargis的长期Mescale卫星派生数据集？发现数据库是最佳可用数据源，以估算全球水平辐照度（GHI）的IAV。发现本研究中考虑的14个样本位点中没有任何展示IAV超过2％。虽然该结果受到限制，但相对于测量数据的观察到的模型性能表明，与系统错误相比，IAV值的不确定性较小，否则出现在Atacama中的网站上的4至6％通用图。 。

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