Solid Oxide Fuel Cell Technology, From the Cell to the Data Centre
Solid oxide fuel cells convert fuel to electricity electrochemically, without a flame. We work on the cell, its materials, testing and durability, and on how SOFC systems integrate with fuel supply, storage and critical power.
How a Solid Oxide Fuel Cell Works
Oxygen is reduced at the cathode, travels through the ceramic electrolyte as oxide ions, and oxidises fuel at the anode. Electrons take the external circuit through the load.
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Electrolyte-Supported cell
A relatively thick, dense YSZ electrolyte carries the cell mechanically, with thin electrodes on either side. The longer ion path raises ohmic resistance, so these cells typically operate at the hotter end of the SOFC range, around 850–1,000 °C. They are robust and well suited to controlled single-cell research and materials evaluation.
Our Work
Engineering Around the Cell
Our project work spans cell-level evaluation and the system questions that follow.
Cell Materials & Compatibility
Electrode and electrolyte selection, thermal expansion matching and interfacial stability.
Manufacturing Considerations
How fabrication route and layer properties affect microstructure, yield and performance.
Electrochemical Evaluation
Open-circuit voltage, I–V and I–P curves and impedance spectroscopy to separate loss mechanisms.
Durability & Reliability
Defined degradation metrics and test protocols so long-duration results are comparable.
Fuel Processing & Integration
Desulfurisation, reforming and fuel-flexibility constraints, and how they shape system design.
Cell-to-Stack Concepts
Sealing, interconnects and thermal management as cells become stacks and modules.
SOFC System Architecture for Stationary and Data Centre Power
Different fuels need different processing before they reach the stack. Output is DC; heat and a CO₂-rich anode exhaust are both potential resources.
Swipe sideways to see the full diagram.
Reading the Numbers Correctly
Three Kinds of Performance That Are Often Confused
Cell Performance
Power density, open-circuit voltage and area-specific resistance, measured on small cells under controlled conditions. It indicates materials quality, not system efficiency.
Electrical Efficiency
Net electricity delivered divided by fuel energy, after balance-of-plant losses. Commercial SOFC systems are commonly reported around 50–65% on a lower-heating-value basis.
Combined Heat & Power
Electricity plus useful recovered heat, divided by fuel energy. Higher than electrical efficiency, but only meaningful where the heat has a genuine use.
Data Centre Integration
What Changes When a Fuel Cell Carries Critical Load
Rystad Energy projects around 10.4 GW of cumulative fuel cell demand from Data Centres between 2026 and 2030. Source
- DC Output. Stacks produce direct current, converted to AC for conventional distribution or coupled to emerging higher-voltage DC architectures.
- Load Following. High-temperature operation favours steady output; batteries typically handle rapid AI load swings.
- Redundancy. Modular units allow redundancy at module level, but availability also depends on firm fuel supply.
- Fuel Flexibility Has Limits. Each system is designed for a defined fuel envelope; changing fuels usually means different processing.
- Emissions. NOx is far lower than combustion, but natural gas operation still produces CO₂, often in a more concentrated exhaust.
- Lifecycle. Stack degradation and replacement intervals shape lifetime cost and availability planning.
Developing or Deploying Fuel Cell Technology?
Talk to us about cell evaluation, materials and integration work.