
1. School of Electrical and Information Engineering, University of the Witwatersrand
2. Department of Fuels and Energy Engineering, Chinhoyi University of Technology
3. Department of Industrial Engineering, Durban University of Technology
4. Sustainable Systems Engineering Program, Schulich School of Engineering, University of Calgary
5. Institute of Systems Science, Durban University of Technology
Published:2026
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Anesu Nicholas Charamba, Denzel Christopher Makepa, Hagreaves Kumba, Joseph Akpan, Oludolapo Olanrewaju, Hydrogen as a solution for a stable and sustainable low-carbon energy system in Sub-Saharan Africa, Clean Energy, Volume 10, Issue 3, June 2026, Pages 21–46, https://doi.org/10.1093/ce/zkag006
Anesu Nicholas Charamba, Denzel Christopher Makepa, Hagreaves Kumba, Joseph Akpan, Oludolapo Olanrewaju, Hydrogen as a solution for a stable and sustainable low-carbon energy system in Sub-Saharan Africa, Clean Energy, Volume 10, Issue 3, June 2026, Pages 21–46, https://doi.org/10.1093/ce/zkag006 DOI:
The increasing penetration of renewable and distributed energy resources in Sub-Saharan Africa has intensified concerns about energy security
frequency deviations
and overall grid instability. Addressing these challenges requires reliable energy storage solutions capable of supporting a stable
low-carbon electricity supply. This study adopts a combined qualitative and quantitative approach to examine the role of hydrogen energy storage systems in enhancing renewable energy integration and advancing decarbonisation across the region. Qualitatively
policy and regulatory preparedness is assessed across twelve Sub-Saharan African countries
while a quantitative decarbonisation cost–benefit analysis evaluates hydrogen’s potential for peak-load management and grid reliability at the national level. Hydrogen storage is proposed as a scalable
low-carbon solution
with South Africa
Kenya
and Ghana emerging as the most promising case studies due to their stronger renewable energy profiles and implementation capacities. The findings show that strategic investment in hydrogen energy storage can significantly reduce CO₂ emissions and improve grid flexibility
although high upfront costs and regulatory constraints remain key barriers. This study contributes a cross-country readiness assessment
empirical evidence of hydrogen’s system-level benefits
and a framework incorporating both green and other hydrogen pathways. These insights highlight the broader applicability of hydrogen storage for developing regions seeking robust
long-term strategies to stabilize renewables-based power systems and accelerate the transition toward low-carbon energy futures.
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