This guideline is meant to be a resource for decision-makers, managers and operational staff who are responsible for the planning, management, maintenance and operation of municipal wastewater treatment plants (WWTPs). The purpose of the guide is to provide information on how to reduce energy consumption in WWTPs, specifically through the maintenance and/or replacement of motors. Importantly, this guide answers the critical question of ‘when should a motor be rewound instead of replaced?’ The guide complements other work being undertaken by SAGEN on municipal energy management systems and energy management in WWTPs.

Authors: GIZ SAGEN, Sustainable Energy Africa, and Triple Point Solutions