The AEM advantage

Anion Exchange Membrane (AEM) electrolysis shows strong potential, but key barriers still prevent industrial-scale deployment.

SCALE-AEM addresses these challenges across the entire value chain, from materials to manufacturing.

Why AEM?

Green hydrogen today is mainly produced using alkaline or PEM electrolysers—but both face limitations.

Limited large-scale manufacturing

High costs (up to €800/kW for stacks)

Dependence on expensive materials with environmental concerns

Poor end-of-life value and costly waste handling

AEM electrolysis combines performance, cost-efficiency, and sustainability.

Lower cost

Avoids expensive precious metals

High performance

More compact than alkaline systems

Future-proof

Compatible with renewable energy and PFAS-free materials

What we are developing

AEM electrolysis combines performance, cost-efficiency, and sustainability.

Image courtesy of Antares
Image courtesy of Matteco

  • We improve the core building blocks of AEM electrolysers: scalable, PFAS-free membranes with better stability and consistent quality; optimised catalyst-coated substrates for anodes and cathodes with longer lifetime and improved residual value; and advanced bipolar plates and sealing materials engineered for industrial production, automated dispensing, and stack-level performance.

  • We integrate intelligence across the entire system: sensor-driven data collection throughout the stack lifecycle, an AI-driven process monitoring system to improve manufacturing and performance, and a dedicated test bed for stack optimisation in both efficiency and operational lifetime.

  • We replace manual processes with industrial-scale production. This includes an automated assembly and disassembly robot demonstrated across 10 × 10–100 kW stacks, and a digital twin for 100 kW stack production that feeds back data to component providers — driving standardisation, lower rejection rates, and better quality control.

Learn more about the technologies

Mission

We bring AEM electrolysis to industrial scale by addressing the final technological and manufacturing barriers

Scale up production

Pilot production line throughout the supply chain for 10 to 100 kW AEMEL stack production

with a digital twin

For production in a scalable manner

less than 300€/(kg/d)

Manufacturing cost for AEMEL stack