1. Industrial and Energy Systems Engineering Laboratory, University institute of Technology Fotso Victor, University of Dschang, Bandjoun, Cameroon
2. Department of Renewable Energy, Higher Technical Teachers’ Training College, University of Buea, Kumba, Cameroon
3. Energy, Electrical Systems and Electronics Laboratory, Department of physics, University of Yaounde 1, Yaounde, Cameroon
4. Laboratory of Mechanical and Modeling of Physical Systems, Department of physics, University of Dschang, Dschang, Cameroon
5. Laboratory of Biomedical engineering, Energy and Construction, ISST, Université des Montagnes, Bangangte, Cameroon