CloseThis event has ended. Key dates:22 May 2026: Application deadline08 – 12 June 2026: Execution of measurements energy research Monday 8 June 2026, 00:00 - Friday 12 June 2026, 23:59 (CEST)Ispra, Italy Practical information WhenMonday 8 June 2026, 00:00 - Friday 12 June 2026, 23:59 (CEST)WhereJoint Research Centre Via Enrico Fermi, 2749, 21027 Ispra VA, Italy Who should attend PV laboratories, space agencies, national metrological institutes, universities, research groups and manufacturers of measurement equipment operating in the fields of climatology and meteorologyLanguagesEnglish, ItalianOrganisersJoint Research Centre Description Organised annually by the European Solar Test Installation (ESTI) laboratories of the Joint Research Centre (JRC), the event consists of a week of uninterrupted measurements of solar and artificial radiation performed by participating instruments to be assessed against reference instruments. More specifically, the performance of the participating spectroradiometers will be assessed against a set of calibrated ESTI spectroradiometers by measuring: • natural sunlight in clear sky conditions • artificial light using the steady-state large area Apollo solar simulator • QTH standard lamps Several performance statistics indicators will be calculated, with focus on the spectral content in different spectral bands. The results will be published by the JRC in an official report. All the participants will have access to the entire dataset of spectra acquired by the group, including the reference data. Several other prototypes and custom sensors are also eligible for participation and the report foresees a dedicated section for these instruments if they are not directly comparable with reference instruments. Launched in 2011, the first ISRC edition focused primarily on photovoltaic (PV) research and application. Over the years, the range of interested participants has gradually differentiated encompassing not only laboratories in the PV field, but also space agencies, national metrological institutes (NMI), universities, research groups and manufacturers of measurement equipment operating in the fields of climatology and meteorology.28 JANUARY 2026ISRC - 2026 Invitation and InstructionsRegistration Registration is free of charge. All other expenses (travel, accommodation etc.) are covered by participants. To register, please download the ISRC - 2026 Invitation and Instructions file. Contacts General contact Diego Pavanello NameDiego PavanelloOrganisationJoint Research Centre - IspraEmaildiego [dot] pavanelloec [dot] europa [dot] eu
Organised annually by the European Solar Test Installation (ESTI) laboratories of the Joint Research Centre (JRC), the event consists of a week of uninterrupted measurements of solar and artificial radiation performed by participating instruments to be assessed against reference instruments. More specifically, the performance of the participating spectroradiometers will be assessed against a set of calibrated ESTI spectroradiometers by measuring: • natural sunlight in clear sky conditions • artificial light using the steady-state large area Apollo solar simulator • QTH standard lamps Several performance statistics indicators will be calculated, with focus on the spectral content in different spectral bands. The results will be published by the JRC in an official report. All the participants will have access to the entire dataset of spectra acquired by the group, including the reference data. Several other prototypes and custom sensors are also eligible for participation and the report foresees a dedicated section for these instruments if they are not directly comparable with reference instruments. Launched in 2011, the first ISRC edition focused primarily on photovoltaic (PV) research and application. Over the years, the range of interested participants has gradually differentiated encompassing not only laboratories in the PV field, but also space agencies, national metrological institutes (NMI), universities, research groups and manufacturers of measurement equipment operating in the fields of climatology and meteorology.28 JANUARY 2026ISRC - 2026 Invitation and InstructionsRegistration Registration is free of charge. All other expenses (travel, accommodation etc.) are covered by participants. To register, please download the ISRC - 2026 Invitation and Instructions file.
