PV-Live dataset - Measurements of global horizontal and tilted solar irradiance

The PV-Live dataset comprises data from a network of 40 solar irradiance measurement stations across the German state of Baden-Württemberg. All stations measure global horizontal irradiance and temperature with a pyranometer, and global tilted irradiance in east, south, and west direction with tilt angles of 25° with three photovoltaic reference cells in minute resolution. A quality control scheme has been developed specifically for this dataset and is applied to the measurements before publication. The minute resolution irradiance and temperature measurements are published with the derived quality flags. A description of the dataset and the quality control scheme is given in Lorenz et al. (2022) and Lorenz et al. (2020). The dataset contains data from September 2020 onwards. It will be continuously extended by adding data of the previous month on a monthly basis. QUALITY FLAGS Two types of flags are provided with the data. Each sensor is assigned a general quality flag, which is based on a combination of different tests. In addition, a shading flag is given, which is not sensor specific, i.e. it applies to all irradiance sensors simultaneously. The flags can have the levels 'passed, all tests complete', 'passed, not all tests complete', 'failed tests, likely erroneous' or 'failed tests, most likely erroneous'. If the flag level of the general quality flags is 'failed tests, most likely erroneous' the corresponding measurement value is set to NaN. DATA FORMAT The data is published as monthly .zip archives. Each archive contains the following files: 1. Tab separated data files (tng000XX_YYYY-MM.tsv) for each station, containing measurements and quality flags of one month 2. Tab separated station location metadata (metadata_stations_YYYY-MM.tsv) 3. Metadata of the dataset describing variable names and quality flag levels (metadata_measurements.json) 4. General comments on data availability and quality for the month (comments_quality_control_YYYY-MM.txt) 5. Log file of changes (change_log_YYYY-MM.txt) Station location metadata is given on a monthly basis because stations can be relocated. Therefore, we recommend to use the metadata valid for its corresponding month. VERSION UPDATES Version 7: - Recalculation of height information for all stations - One station has been moved to a new, nearby location on 16th September 2021 ACKNOWLEDGEMENTS The data have been collected and processed by Fraunhofer ISE in the framework of PV-Live, a project in cooperation with TransnetBW. We thank our station partners for cooperation in installing and maintaining our measurement stations: EnBW Solar, Badenova, Pohlen Solar, Oekogeno Solar7, Ecovision, Hochschule Ulm, Hofgemeinschaft Heggelbach, Soltechnics-solution and the Stadtwerke Karlsruhe, Grünstadt, Buchen, Crailsheim, Schwäbisch Hall, Pforzheim, Konstanz, Waldshut-Tiengen, Schwäbisch Gmünd, Ravensburg, Eberbach, Baden-Baden.PV-Live数据集（PV-Live dataset）由分布在德国巴登-符腾堡州的40座太阳辐照度测量站网络所产生的数据构成。所有站点均使用总辐射表（pyranometer）测量总水平辐照度与气温，并以25°倾角的三台光伏参考电池，按分钟分辨率测量东、南、西三个方向的总倾斜辐照度。本数据集开发了专属的质量控制方案，并在正式发布前应用于所有测量数据。分钟级分辨率的辐照度与气温测量数据将连同衍生的质量标记一同发布。数据集的相关说明与质量控制方案详见Lorenz等人（2022）与Lorenz等人（2020）。本数据集自2020年9月起收录数据，并将通过每月补充上月数据的方式持续更新。 ### 质量标记 本数据附带两类标记。其一为通用质量标记，针对每台传感器，基于多项测试的组合结果生成；其二为遮蔽标记，不针对单台传感器，即同时适用于所有辐照度传感器。标记等级包括：「所有测试均通过」、「未完成全部测试但通过」、「测试未通过，大概率存在误差」以及「测试未通过，极大概率存在误差」。若通用质量标记的等级为「测试未通过，极大概率存在误差」，则对应的测量值将被设为NaN。 ### 数据格式 数据以月度.zip压缩包形式发布。每个压缩包包含以下文件： 1. 各站点的制表符分隔数据文件（命名格式为`tng000XX_YYYY-MM.tsv`），收录单站点单月的测量数据与质量标记； 2. 制表符分隔的站点位置元数据文件（命名格式为`metadata_stations_YYYY-MM.tsv`）； 3. 描述变量名称与质量标记等级的数据集元数据文件（`metadata_measurements.json`）； 4. 当月数据可用性与质量情况的通用说明文件（`comments_quality_control_YYYY-MM.txt`）； 5. 变更日志文件（`change_log_YYYY-MM.txt`）。 由于站点可能发生迁址，站点位置元数据按月度提供，因此建议使用对应月份的有效元数据。 ### 版本更新 版本7： - 所有站点的高度信息已重新计算 - 1座测量站于2021年9月16日迁至附近新址 ### 致谢 本数据由弗劳恩霍夫太阳能系统研究所（Fraunhofer ISE）在PV-Live项目框架下收集并处理，该项目为与特网电网（TransnetBW）的合作项目。感谢各站点合作伙伴在测量站的安装与维护工作中提供的协作：EnBW Solar、Badenova、Pohlen Solar、Oekogeno Solar7、Ecovision、乌尔姆应用技术大学（Hochschule Ulm）、Heggelbach社区合作社、Soltechnics-solution以及卡尔斯鲁厄、格林施塔特、布亨、克雷尔斯海姆、施瓦本哈尔、普福尔茨海姆、康斯坦茨、瓦尔茨胡特-蒂恩根、施瓦本格明德、拉文斯堡、埃伯巴赫、巴登-巴登的市政公用事业公司。