In a major clean‑energy breakthrough, researchers from the University of Wollongong (UOW) and the ARC Centre of Excellence for Electromaterials Science (ACES) have developed a new electrolyzer technology that brings cost‑competitive green hydrogen closer to reality.
Published in Nature Communications (16 March 2022), the research showcases a “capillary‑fed electrolysis cell” achieving 98% cell energy efficiency — far exceeding current electrolyzer technologies and surpassing IRENA’s 2050 targets.
This breakthrough enables hydrogen production costs that can finally compete with fossil‑fuel‑derived hydrogen.
A New Era of Electrolyzer Efficiency
Professor Gerry Swiegers and the UOW team developed a system that dramatically reduces energy losses. Their spin‑out company, Hysata, is now commercialising the technology with support from IP Group and the Clean Energy Finance Corporation (CEFC).
Traditional electrolyzers have existed for 200 years, but their high energy consumption has limited large‑scale green hydrogen adoption. Hysata’s design changes that.
95% System Efficiency — A Global Game Changer
Hysata’s electrolyzer system achieves 95% overall efficiency (41.5 kWh/kg), compared to 75% or less for existing systems. This reduces both capital and operational costs for hydrogen producers.
The company aims to deliver the world’s lowest hydrogen production cost — below US$1.50/kg by the mid‑2020s — meeting global targets years ahead of schedule.
A New Category of Electrolyzer
Hysata’s design is described as “as monumental as the shift from internal combustion engines to electric motors.” The system is engineered for:
- Ease of manufacturing
- Scalability
- Low maintenance
- High durability
- Mass production readiness
With plans underway for a pilot manufacturing plant, Hysata is positioning Australia as a global electrolyzer leader.
A Trillion‑Dollar Industry in the Making
Green hydrogen is forecast to become a trillion‑dollar global industry. Electrolyzers are the backbone of this future, and Hysata’s breakthrough offers a pathway to rapid decarbonisation of heavy industry, transport, and energy systems.
The research paper, “A high‑performance capillary‑fed electrolysis cell promises more cost‑competitive renewable hydrogen”, highlights the scientific foundation behind this leap forward.
