© 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. This communication reports on the potential of using MFCs for powering real world applications, whereby three interconnected MFCs directly energise an external DC motor, and a single MFC recharges a mobile phone, via energy harvesting. The work is aiming to evaluate MFC performance based on low-cost, catalyst-free conditions, with an internal cathode to operate practical applications. It presents the case for simple and easy-tooperate ceramic-based designs as a viable approach to larger-scale implementation in real-world conditions such as wastewater treatment plants. MFCs hold great promise for sustainable wastewater treatment since they are the only technology that directly generates electricity from the break-down of waste.