Green Hydrogen in Southern Africa: Hype, Hope, and Hard Questions

Green hydrogen — produced through electrolysis of water using renewable electricity — has captured the imagination of policymakers, investors, and development agencies from Windhoek to Pretoria. Southern Africa's combination of world-class solar and wind resources, established port infrastructure, and access to European and Asian markets makes it one of the most credible regions globally for large-scale green hydrogen export.

South Africa's Hydrogen Society Roadmap, Namibia's Hyphen Hydrogen Energy project, and Botswana's emerging green-ammonia strategy are the highest-profile expressions of this ambition. Investment announcements in the tens of billions of dollars have generated real excitement — and genuine scrutiny from analysts asking whether the economics actually work.

CLEEN's assessment, drawing on detailed cost modelling for ten proposed projects and interviews with financiers, developers, and policymakers across the region, suggests the picture is more nuanced than either the enthusiasts or the sceptics allow. The electrolyser cost curve is falling faster than most analysts projected; this improves project economics meaningfully. But the critical variable is not technology cost — it is the cost and reliability of renewable electricity supply, which depends on grid investment, regulatory frameworks, and wheeling arrangements that are still being designed.

The export infrastructure question is equally important. Green hydrogen or ammonia shipped to Europe or Japan must compete with Australian and Chilean supply that has comparable solar resources, more mature infrastructure, and greater political certainty. Southern African projects will need to demonstrate both cost competitiveness and supply reliability to win long-term offtake agreements from risk-averse buyers.

The most important question is not whether southern Africa can produce green hydrogen — it clearly can — but whether it can do so in a way that primarily benefits southern African workers, communities, and economies rather than serving as an enclave export industry with limited local linkages. That outcome requires deliberate policy choices on local content, community benefit-sharing, and the sequencing of industrial policy. CLEEN is engaged with several governments in this region on exactly these questions.