Proton Energy Systems' PEM electrolysis technology demonstrates 18,000 hours of hydrogen generation

Proton Energy Systems has announced a technological milestone involving its high-pressure, proton exchange membrane (PEM) electrolysis technology. Proton has demonstrated more than 18,000 hours of hydrogen generation at 2,400 psi without any external mechanical compression. The ability to produce hydrogen at an elevated pressure will help reduce the hydrogen storage footprint in applications where space is a premium. Additionally, producing high-pressure hydrogen without generating high-pressure oxygen provides a safer, more cost-effective, on-site hydrogen solution. The elimination of a mechanical compressor in the system makes it possible to reduce the overall capital cost and operating cost of the installation. Proton’s commercial PEM-based hydrogen generation systems are capable of running continuously at up to 400 psi and typically require external mechanical compression to achieve higher pressures.

The 2,400 psi milestone was achieved while increasing the hydrogen production by a factor of four from previous high-pressure hydrogen generation systems. The 2,400 psi advancement is in line with Proton’s ultimate goal of generating hydrogen at 5,000 psi without external mechanical compression and with the same reliability and durability. Proton has also worked to achieve a 20% improvement in efficiency of its commercial PEM platform. At the same time, additional efforts aimed at cost reduction of the cell stack membrane-electrode assembly (MEA) have netted almost a 30% savings in material cost.

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