The "annual meeting about spectral measurement and measurement precision for irradiance" on 15. March & 16. March 2021 (each ½ a day in the morning) will be an online workshop this year.
Please contact 
marcus.rennhofer@ait.ac.at for further information, since the host, AIT Austrian Institute of Technology GmbH, is no partner within the PV-Enerate project consortium.