1. Regional Center of Excellence for Electricity Management (CERME), University of Lomé, Lome 01 BP 1515, Togo
2. Laboratory on Small Hydroelectricity and Hybrid Systems, National Advanced School of Engineering of Yaoundé (NASEY), University of Yaoundé 1, Yaoundé P.O. Box 8390, Cameroon
3. Solar Energy Laboratory, Department of Physics, Faculty of Sciences, University of Lomé, Lome 01 BP 1515, Togo
4. National Committee for Development of Technologies (NCDT), Yaounde BP 1457, Cameroon