The conventional method of ammonia production uses steam to break natural gas into hydrogen and carbon molecules. The hydrogen is then reacted with nitrogen to create ammonia, but the carbon is released into the atmosphere as CO₂ meaning the process is highly carbon intensive, representing 1.8% of global CO₂ emissions². Net zero-aligned countries have been developing regulations to decarbonise this industry, including mandates to adopt electrolysis technology.  

AtkinsRéalis delivered a study to one of the world’s largest ammonia producers detailing the potential of an electrolyser system design using Ceres technology. Developed in collaboration with the plant owner, the study evaluated the opportunity for SOEC-produced hydrogen to integrate into their fertiliser plant. It provided a cost estimate for equipment required for their operations, including the development of a 400MW electrolysis configuration.  

The study showed that steam generated as a byproduct of ammonia and fertiliser production was sufficient to fulfil the electrolyser’s needs and enable maximum efficiency gains that reduce electrical consumption by 30% compared to alkaline technology. The cost of electricity typically represents 70-80% of the cost of a unit of green hydrogen and therefore increased efficiency presents the best opportunity for cost reduction.  

The results of the study presented the transformative impact that Ceres SOEC technology could have to project economics and therefore the decarbonisation of the fertiliser production industry.

Ceres is actively speaking to the biggest names in the chemicals industry to accelerate the adoption of SOEC technology. Our licence partners are developing the system technologies to commercialise our product and service this large market.  

1. 2025, Grand View Research, Ammonia market size, share and trends analysis report 

2. 2020, Royal Society, Ammonia: zero-carbon fertiliser policy briefing