The company delivered a 5MW pressurised alkaline system to an unnamed customer in Europe, with the unit “tailored” to meet the region’s regulatory requirements.

Longi said the product was developed under ASME codes and certified to CE pressure equipment directive requirements, specifically to meet European regulations.

It marks Longi’s broader push to position itself as a supplier for European hydrogen developers.

The company’s President, Ma Jun, called Europe “one of the most secure markets for green hydrogen” and spoke of a future supporting Europe to build a “greener, more stable, and more resilient energy system.”

Longi has been tying up with Norwegian-based OEM HydrogenPro. The pair inked a cooperation agreement aimed at strengthening electrolyser engineering, servicing and manufacturing support across Europe.

However, there are fears from European players that cheaper Chinese-made systems could undercut domestically developed and produced technologies. Rules under the European Hydrogen Bank auctions have capped Chinese-sourced electrolyser stacks at 25% of a project’s total electrolyser capacity.

As EU-backed projects move from action to final investment decisions, the extent to which developers can integrate Chinese technology into their supply chains will be watched closely across the industry.

The delivery also comes after Longi shipped two of the alkaline electrolysers to an Australian green hydrogen blending project in May 2025, and established itself as a supplier of photovoltaic modules for a 450MW solar project in Hungary in December 2025.