TechX Clean Energy Accelerator | Pioneer Portfolio | PEM Technologies

PEM Technologies

Location
Edinburgh, UK
Technology Focus Area
Hydrogen & alternative fuels
Technology Readiness Level
3

PEM (Proton Exchange Membrane) electrolysers are widely recognised for their ability to follow variable renewable loads while producing high-purity hydrogen and oxygen. However, high costs, reliance on rare earth minerals, and supply chain vulnerabilities continue to limit adoption.

PEM Technologies is tackling these challenges with a patent-pending electrolyser that uses waste-derived materials, offering a more sustainable and cost-effective alternative. Designed with servicing in mind, the system introduces the first-of-its-kind “hot” cell replacement, enabling rapid changeovers without major disruption.

The modular system design reduces material costs by up to 35% and allows individual cells to be swapped in minutes, eliminating the need for full stack replacement and cutting downtime from days to around 60 minutes.