Industry Update
ANDRITZ opens electrolyzer gigafactory in Erfurt, Germany On 4 June, ANDRITZ officially opened its new electrolyzer gigafactory in Erfurt, Germany. The new facility has an initial annual production capacity of approximately 1 GW, which corresponds to approximately 160 to 200 electrolyzers per year.
At the site, key components for green hydrogen production have already been produced since March, including electrolyzer cell stacks and phase separators, which are then subjected to pressure testing and quality control. Depending on customer demand, the output can be flexibly scaled up.
The factory is located on a site with a longstanding industrial heritage, where ANDRITZ Schuler has produced presses for many years. Around 350 people currently work in Erfurt, with nearly 100 set to be employed in the new electrolyzer gigafactory. The existing infrastructure, combined with Erfurt’ s strategic location in the heart of Europe and direct access to major transportation networks, provides a strong foundation for efficient production, transport, and timely delivery of electrolyzers to project sites across the continent.
The electrolyzers are based on the latest technology from ANDRITZ’ s partner HydrogenPro. The first electrolyzers produced at the facility are destined for Salzgitter AG’ s 100 MW hydrogen plant for
low-CO 2 steel production. All green hydrogen products made in Erfurt are CE-certified and meet European safety and performance standards.
Stargate Hydrogen inaugurates electrolyser factory in Estonia On 6 June, Stargate Hydrogen officially opened its new production facility in Tallinn, Estonia. Dedicated to the manufacturing of alkaline electrolysis stacks and systems, the factory has an initial annual production capacity of 140 MW, with the potential to scale up to over 1 GW with minimal additional investment. Deliveries from the new facility have already commenced, serving customers across Europe, the Middle East, Turkey, and India.
Stargate Hydrogen has taken a modular, future-oriented approach to scale-up, avoiding the pitfalls of overcapacity and underutilisation. Rather than building a large greenfield plant, the company opted for a brownfield site with a flexible floor plan, enabling efficient space use and limiting upfront capital expenditure.
Marko Virkebau, CEO of Stargate Hydrogen, said:“ There are currently several electrolyser gigafactories out there that are standing idle and burning through incredible amounts of capital. We have chosen a different strategy, scaling up modularly to meet the growing demand as it rises and when our next-generation innovations are launched to the market. Currently, our production is fully booked until the end of 2025, and we see increasing demand from our existing customers in Europe and new customers from the Middle East and Asia.”
4 Hydrogen Tech World | Issue 22 | June 2025