On 6 August 2025, CPH2 released a white paper describing benefits of its patented membrane‑free electrolysis technology compared with traditional proton exchange membrane (PEM) and alkaline (AEL) systems. According to CPH2’s chief technical officer, Paul Cassidy, recent customer tests verified that the membrane‑free design can achieve better performance and efficiency.
The paper explains that by eliminating the membrane — a costly and maintenance‑intensive component — the system reduces the levelised cost of hydrogen production and can flexibly follow variable loads from wind and solar power while still delivering high‑purity hydrogen and oxygen. It also discusses safety considerations such as cryogenic separation and mixed gas handling, which enable the technology to operate reliably in mission‑critical applications like water supply, biomass plant efficiency, electricity grid support and data centre operations.
These advantages mean membrane‑free electrolysers could become a key component of the green hydrogen economy. By making hydrogen production more cost‑effective and adaptable to renewable energy sources,
CPH2’s approach has the potential to accelerate adoption of zero‑carbon fuels across sectors ranging from life sciences to renewable energy asset management.
Emmanuel is a committed and safety-driven graduate of Electrical and Electronics Engineering with professional interests in renewable energy systems and power system engineering.
