1. Department of Electrical and Electronics Engineering, College of Engineering, Institute of Power Engineering, Universiti Tenaga Nasional, Jalan Ikram-Uniten, Kajang, Malaysia
2. EPSRC National Centre for Energy Systems Integration, School of Engineering, Merz Court, Newcastle University, Newcastle upon Tyne, U.K
3. Center for Energy and Environmental Strategy Research, Kaduna State University, Tafawa Balewa Way, Kaduna, Nigeria
4. Department of Electrical Engineering, IT and Cybernetic, University of South-Eastern Norway, Porsgrunn, Norway