The data is described in Karhu et al. (2025) (to be submitted to Geoscience Data Journal). The data files (*.csv) are PV system specific i.e. each data file contains all meteorological ancillary-PV and PV production data from one of the four different systems specifically. Each data file has a header explaining the variables (separated with ';'). The variables are somewhat different from site to site. FMI_Helsinki_PV.csv FMI_Kuopio_PV.csv FMI_Sodankyla_20deg_PV.csv FMI_Sodankyla_90deg_PV.csv In addition to the data files there is a compressed tar archive containing hourly taken photographic images of the modules of the FMI's open-air solar laboratory in Sodankylä: Sodankyla_module_images_2018-2021.tar.gz

2025