by Alioune Diouf  , Yasuhiro Noro  and Fujita Goro

Received: 17 June 2025;  Published: 24 October 2025;  doi: 10.21926/jept.2504015

Recently, renewable energy projects using storage systems have gained significant attention. This innovative technology requires a comprehensive investigation to overcome the technical and economic issues, which are related to optimal storage system capacity and operational requirements. In this study, an extensive battery energy storage system (BESS) sizing method was proposed considering four variables: charging and discharging scheduling, state of charge, BESS rate energy and power capacity, [...]

by Nanimpo Kansongue  , Stephen Vertigans  and James Njuguna

Received: 22 December 2024;  Published: 13 October 2025;  doi: 10.21926/jept.2504014

This work investigates the potential of renewable energy to significantly reduce Togo’s energy deficit, offering a critical analysis of the country’s current energy landscape. It evaluates the availability and viability of renewable energy sources—particularly solar and small-scale hydropower—and examines the mismatch between energy supply and growing demand. The study highlights Togo’s heavy reliance on biomass and energy imports from neighbouring countries such as Ghana, Côte d’Ivoire, and Nig [...]