Hive Hydrogen’s selection of Topsoe for the Coega Green Ammonia Project marks a significant milestone for South Africa’s emerging hydrogen economy. The Danish technology provider is expected to supply 850 MW of solid oxide electrolyser cell (SOEC) technology and ammonia synthesis equipment for the US$5.8 billion project in the Coega Special Economic Zone near the Port of Ngqura.

The project aims to produce approximately 1 million tonnes of green ammonia annually by 2030, positioning South Africa as a major supplier to European and Asian markets seeking low-carbon fuels, sustainable fertiliser feedstocks, and industrial decarbonisation solutions. 🌱

Why the Technology Choice Matters ⚡

From a project finance perspective, the selection of SOEC technology is much more than an engineering decision. It directly influences project economics, power requirements, operating costs, financing structures, and ultimately bankability.

According to Hive Hydrogen, Topsoe’s technology is expected to reduce renewable energy capital expenditure requirements by more than €500 million. The improved efficiency of SOEC technology allows the project to achieve production targets with a smaller electrolyser footprint and lower overall renewable generation requirements.

For financial modellers, these efficiencies translate directly into:

• Lower upfront capital expenditure
• Reduced transmission and wheeling costs
• Improved operating margins
• Stronger debt service coverage ratios (DSCR)
• Enhanced project IRR and NPV metrics

As green hydrogen projects continue to scale globally, technology selection is becoming one of the most important variables in determining whether projects can secure competitive financing. 📊

Building One of Africa’s Largest Renewable Energy Platforms ☀️🌬️

The Coega project will be powered by approximately:

• 1,430 MW of solar PV
• 1,880 MW of wind capacity
• Dedicated desalination infrastructure for process water supply

This scale demonstrates that green ammonia projects are fundamentally integrated energy infrastructure developments. They combine renewable generation, hydrogen production, ammonia synthesis, water treatment, storage facilities, and export logistics into a single investment platform.

From a modelling perspective, this creates significant complexity.

A bankable financial model must assess:

• Renewable energy yield assumptions
• Curtailment risk
• Electrolyser utilisation rates
• Water supply costs
• Ammonia conversion efficiencies
• Export logistics expenses
• Foreign exchange exposure
• Long-term ammonia price scenarios

Simple annual production assumptions are often insufficient. Lenders increasingly require detailed operational modelling to understand downside scenarios and revenue resilience. 📈

South Africa’s Competitive Advantage 🌍

The location of the project provides several strategic advantages.

The Coega Special Economic Zone benefits from proximity to the Port of Ngqura, one of South Africa’s most modern deep-water ports. This provides direct access to international shipping routes and growing demand centres in Europe and Asia.

South Africa also possesses some of the world’s strongest renewable energy resources, particularly for solar PV and onshore wind generation.

Combined with existing industrial capabilities and established export infrastructure, the country has the potential to become a leading global supplier of green fuels.

However, challenges remain:

• Grid infrastructure constraints
• Regulatory execution risks
• Supply chain bottlenecks
• Currency volatility
• Long-term offtake certainty

These factors must be reflected in project financial models through appropriate sensitivities, contingency allowances, and debt sizing assumptions. ⚙️

The Road to Final Investment Decision 💰

The project has already secured development-stage support through the SA-H2 Fund, which announced funding commitments to advance development activities and support the project toward construction readiness.

The next major milestones include:

• FEED commencement in Q3 2026
• Commercial structuring and offtake negotiations
• Debt financing arrangements
• Final Investment Decision (FID) targeted for Q3 2027

For lenders and investors, the focus will increasingly shift from technology selection toward contractual certainty. Bankability will depend heavily on securing long-term ammonia offtake agreements, construction risk allocation, and robust operating assumptions.

The quality of the financial model will be critical in demonstrating project resilience under a range of market and operational scenarios.

What Financial Modellers Should Watch 📊

Several metrics will likely determine investor appetite:

• Levelised cost of hydrogen (LCOH)
• Levelised cost of ammonia (LCOA)
• Project IRR
• Equity IRR
• DSCR
• Loan life coverage ratio (LLCR)
• Breakeven ammonia pricing
• Renewable energy utilisation rates

Particular attention should be given to ammonia pricing assumptions. While long-term demand projections remain strong, future pricing structures will ultimately influence debt capacity and overall project returns.

Conclusion 🌱

The Coega Green Ammonia Project represents one of the most ambitious renewable energy and industrial decarbonisation developments currently underway in Africa.

The selection of Topsoe’s SOEC technology strengthens the project’s economic case and demonstrates how technology innovation can improve bankability at scale.

For South Africa, Coega is more than a hydrogen project. It is a test of whether renewable resources, industrial development, export infrastructure, and project finance can successfully combine to create a globally competitive green fuels industry.

For financial modellers and infrastructure investors alike, this is a project worth watching closely over the next 18 months as it progresses toward FID.