1. Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering University of New South Wales Sydney Australia
2. Joint Research Centre European Commission Ispra Italy
3. Fraunhofer‐Institute for Solar Energy Systems ‐ ISE CalLab Freiburg Germany
4. Renewable Energy Research Center (RENRC) National Institute of Advanced Industrial Science and Technology (AIST) Ibaraki Japan
5. National Renewable Energy Laboratory Golden Colorado USA
6. Calibration and Test Center, Solar Cells Laboratory Institut für Solarenergieforschung GmbH (ISFH) Emmerthal Germany