SOEC technology, ready at scale

The foundation of our SOEC system is the ceramic cell — where water (H₂O) is split into hydrogen (H₂) and oxygen (O2). Each cell is built from a precise mix of ceramic layers and electrodes, forming a flat, hexagonal design that enhances stacking, ensures uniform current flow, and supports efficient heat management.

This geometry is key to the system’s performance and scalability.

Click to see how cells form a stack.

The stack brings SOEC cells together to scale production. Each cell is layered with interconnect plates that distribute gases (H₂O, CO₂, H₂, O₂) evenly, conduct electricity, and ensure proper sealing. This design turns a single reaction into high-volume hydrogen output, reliably and efficiently.

Click to see how stacks form a core.

The core combines stacks with all essential operating components including; manifolds, heat exchangers, and insulation,  into a compact, modular unit. This design enables efficient thermal integration and easy connection to industrial systems.

Click to see how cores come together in a full section.

Each SOEC section combines eight cores, two transformers, and a shared piping module — forming the basic unit of a Topsoe hydrogen production plant.

Everything needed to operate and maintain the cores are integrated into the section: a power supply cabinet, electrical cabinet, process inlets and outlets, control systems, and maintenance features like shut-off valves.

Designed for easy access and fast service, the section enables forklift-level core replacement and individual stack servicing — keeping downtime low and uptime high.