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Annual Solar Irradiance Anomaly Features Over the USA During 1998–2017 Using NSRDB V3

机译:每年在1998 - 2017年使用NSRDB V3期间美国的年度太阳辐照区异常特征

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Annual solar irradiance anomalies (or departures from the long-term mean annual value) have a direct impact on various phases of solar energy projects, from prefeasibility studies to technical deployment decisions. Anomalies can happen because of normal climate variability or exceptional weather patterns. This study investigates such anomalies for both global horizontal irradiance (GHI) and direct normal irradiance (DNI) using Version 3 of the National Solar Radiation Database (NSRDB V3) and surface irradiance measurements at eight U.S. locations. At each site, the annual anomaly is analyzed here by evaluating the irradiance deviation from the long-term average for each specific year from 1998–2017. A positive/negative anomaly indicates that the solar resource was higher/lower than the long-term average during that specific year. The results show that in most cases the anomaly is within ±5% for GHI and ±10% for DNI using either ground-based irradiance measurements or modeled data from the NSRDB.
机译:年度太阳辐照度异常(或从长期平均年度的离去)对太阳能项目的各个阶段有直接影响,从前方研究到技术部署决策。由于气候变异性正常或卓越的天气模式,异常会发生。本研究通过国家太阳辐射数据库(NSRDB V3)和八个美国地点的第3版,研究了全球水平辐照度(GHI)和直接正常辐照度(DNI)的这种异常,以及八个美国地点的表面辐照度测量。在每个网站,通过从1998 - 2017年的每只特定年度的长期平均值评估辐照度偏差,在此处分析年度异常。阳性/阴性异常表明,在该特定年内,太阳能资源较高/低于长期平均值。结果表明,在大多数情况下,使用基于基于地基的辐照度测量或来自NSRDB的建模数据,在GHI的±5%内,异常在±5%以内和±10%。

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