Hamburg‑based electrolyser manufacturer Sunfire has introduced HyLink® Alkaline 23, a new 50 MW outdoor pressurised alkaline electrolyser module, aimed at enabling triple‑digit‑megawatt green hydrogen projects while reducing total installed costs (TIC) for customers by up to 50%. The system is designed for large‑scale industrial applications in refining, chemicals and ammonia production, where companies are scaling up low carbon hydrogen supply.
At the core of the unit is Sunfire’s second‑generation 30‑bar(g) pressurised alkaline stack, already deployed in industrial plants across Europe. The higher operating pressure cuts the need for downstream hydrogen compression and slashes capital and operating costs. The new 50 MW module effectively replaces five of the company’s earlier 10 MW units, cutting the number of modules needed in a 100 MW project from ten to two and eliminating the requirement for a dedicated electrolyser building.
The design centralises key plant components, integrates standard air‑cooling and increases the level of prefabrication, which shortens on‑site installation and commissioning while lowering engineering and construction risk. Sunfire’s CTO Christian von Olshausen said the improvements stem from five key levers: higher module capacity, fully outdoor‑oriented design, pre‑integrated interfaces, advanced prefabrication and a stack technology with proven field performance.
Sunfire chief executive Nils Aldag said the company, which also develops solid‑oxide (SOEC) systems, has evolved from piloting small‑scale systems to delivering repeat 100 MW projects with existing customers, and that HyLink Alkaline 23 is tailored to the next phase of industrial‑scale roll‑out.
