1. DTU Fotonik, Department of Photonics Engineering Technical University of Denmark Roskilde Denmark
2. Applied Radiometry Physikalisch‐Technische Bundesanstalt (PTB) Braunschweig Germany
3. Institute for Solar Energy Research Hamelin (ISFH) Emmerthal Germany
4. Institute for Solid State Physics, Solar Energy Department Leibniz University Hanover Hannover Germany
5. National Centre for Nano Fabrication and Characterization Technical University of Denmark Lyngby Denmark
6. Solar Energy TNO Energy Transition Petten The Netherlands
7. Centre for Renewable Energy Systems Technology (CREST), Wolfson School of Mechanical, Electronic and Manufacturing Engineering Loughborough University Loughborough UK
8. Spanish National Renewable Energy Centre (CENER) Sarriguren Spain
9. Photovoltaic Solar Energy Unit, CIEMAT PVLab Madrid Spain
10. Institute for Applied Sustainability to the Built Environment (SUPSI ‐ ISAAC) University of Applied Sciences and Arts of Southern Switzerland, Campus Trevano Canobbio Switzerland
11. CalLab PV Modules Fraunhofer Institute for Solar Energy Systems ISE Freiburg Germany
12. CFV Laboratories Albuquerque New Mexico USA
13. Sandia National Laboratories Albuquerque New Mexico USA
14. Renewable Energy Test Center (RETC) Fremont California USA
15. PV Evolution Labs (PVEL) Berkeley California USA