Supplementary Information Application of maximum power point tracking to increase the power production and treatment efficiency of a continuously operated flat-plate microbial fuel cell Young Eun Song [a] , Hitesh C. Boghani [b] , Hong Suck Kim [c] , Byung Goon Kim [c] , Taeho Lee [d] , Byong-Hun Jeon [e] , Giuliano C. Premier [b] , Jung Rae Kim [a]* [a] School of Chemical and Biomolecular Engineering, Pusan National University, Jangjeon-Dong, Geumjeong-gu, Busan, 46241, Korea [b] Sustainable Environment Research Centre (SERC), Faculty of Computing, Engineering and Science, University of South Wales, Pontypridd, RCT, CF37 1DL, UK [c] The MFC Research and Business Development (R&BD) Center, K-water Institute, Jeonmin-Dong, Yuseong-Gu, Daejeon, 34045, Korea [d] Department of Civil and Environmental Engineering, Pusan National University, Busan, 46241, Korea [e] Department of Natural Resources and Environmental Engineering, Hanyang University, Seoul, 04763, Korea