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Highlights: What are the main findings? MFC breakdown, electrochemical principles for generating bioelectricity. MFC operation mechanism and applications. MFCs previous perspectives. RSA energy crisis, MFC technology viable solution. What is the implication of the main finding? MFC suggests that, in theory, bioelectricity can be produced from organic content using just chemical energy. MFC can be used in plant operations on a daily basis to cut operational costs. Existing research shows that MFCs are viable, but scaling-up is very necessary. For the current energy crisis in South Africa, MFCs may be a workable sustainable energy source. Microbial fuel cell (MFC) technology turns chemical energy into bioelectricity in a clean and efficient manner, lowering carbon emissions and increasing bioenergy production. It is a multifaceted technique that has the potential to be a panacea for clean water scarcity and sustainable, renewable energy. In this review, the approach focuses on scaling-up and application prospects at a commercial scale. An outlook on various, previously tried methodologies was generated in order to establish a viable bioelectricity scaling-up approach that is also cost-effective in its design. Precise themes were followed to evaluate previously produced models and methodologies for MFCs: principle and anatomical mechanisms, basic applications, bioelectricity scaling-up potentials from previous work and limitations, then an outlook on MFC feasibility and its wastewater treatment plant (WWTP) energy supply chain. The goal of this paper is to derive a viable approach from prior research in order to comprehend how MFC technology may be scaled-up for commercial and practical power output. Essentially, this article summarizes the current energy predicaments faced by South Africa and proposes MFCs as a new knowledge-contributing technology with electricity scaling-up potential. Conclusively, more research on MFC technique scaling-up operating factors is recommended. [ABSTRACT FROM AUTHOR]