2025 is coming to an end, and Sunfire looks back on a successful journey across Europe. At the center was a clear goal: to reliably provide industrial electrolyzers—key to producing green hydrogen and enabling a strong, future-proof industry.
Image: The electrolysis specialist is driving home for christmas.
Which milestones shaped Sunfire in 2025, and what do they mean for ramping up green hydrogen in Europe?
€200 Million Guarantee Financing Creates Tailwind for Scaling
Right at the start of the year, Sunfire celebrates its first major achievement: securing €200 million in guaranteed financing. The pioneering financing allows advance payments to be used for manufacturing industrial electrolyzers. The guarantee line is provided by a consortium of leading European commercial banks. This milestone is more than a financial commitment—it demonstrates the growing importance of climate technologies, the sustainable transformation of German industry and Sunfire’s capabilities.
Sunfire Continues Growth Path and International Ambition
In 2025, Sunfire integrates Swiss production capacities for pressurized alkaline electrolyzers (Monthey) into its German plants. This step optimizes production processes and strengthens the company’s competitive position.
In April, the next strategic move follows: Sunfire converts into a European Stock Corporation (SE) and underscores its international ambition and continued growth trajectory.
Sunfire Strengthens Partnerships and Drives Hydrogen Projects Across Europe
In 2025, Sunfire expands its presence in key European markets such as Germany, Spain, and Finland. Sunfire’s pressurized alkaline systems have already achieved over 85,000 operating hours and are producing hydrogen for large-scale commercial use at customer sites. These successes solidify partnerships and pave the way for new projects. Alongside major industrial projects using proven pressurized alkaline technology, Sunfire confirms its leadership in SOEC technology with new records.
Pressurized Alkaline Technology
A major milestone succeeds in partnership with P2X Solutions: in February, Finland’s first industrial green hydrogen plant starts commercial operations. At its core is Sunfire’s 20 MW electrolyzer. The project sets a benchmark for collaboration between Germany and Finland in the European hydrogen market. In autumn, both companies build on this success and launch a FEED study for another project in Joensuu—with a planned capacity of 40 MW.
Sunfire also strengthens its position in Spain: with market entry in April and a partnership with Repsol, the company gains another global energy player and refinery customer as a partner.
In Germany, Bad Lauchstädt Energy Park reaches a decisive milestone with the delivery of the first electrolyzer stacks for Sunfire’s 30 MW system. This marks the start of the final installation phase. Commissioning of the plant—which will supply climate-neutral hydrogen to the regional refinery in Leuna—comes within reach.
SOEC Technology
In October, Sunfire sets another record with its SOEC technology: as part of the MultiPLHY project, the world’s largest high-temperature electrolyzer[1] begins operations at the Neste refinery in Rotterdam, Netherlands. The pilot plant demonstrates that green hydrogen can replace fossil-based hydrogen in refineries and that Sunfire’s high-temperature electrolysis is already integrable at industrial scale today.
Market Ramp-Up Gains Momentum
In 2025, industrial implementation moves into the spotlight. Installed electrolyzer capacity in Europe increases by around 50 percent year-over-year to approximately 600 megawatts, while annual production capacity surpasses the 10-gigawatt mark.
Nils Aldag, CEO of Sunfire, underlines: “Electrolyzer companies have done their homework and created world-class manufacturing capacity in Europe. We are ready with European cutting-edge technology to meet the demand for green hydrogen in Europe and contribute to a strong, resilient, and competitive Europe.”
At the same time, Europe faces the challenge of maintaining technological leadership. Long-term and reliable demand through implementing RED III targets in the transport and industrial sectors, as well as strengthening European resilience for electrolyzer technologies, become decisive factors.
Strategic Importance of European Electrolyzer Technology Increases
The year is marked by geopolitical tensions and fragile trade dependencies. In this environment, resilience, industrial strength, and technological sovereignty become increasingly important. Green hydrogen plays a strategic role: as a local and renewable energy source, it enables Europe to act independently.
This growing importance is also reflected in new industrial concepts. With the project proposal “Giga PtX,” an alliance of leading German industrial and cleantech companies is forming to produce synthetic fuels (e-fuels) independently. The goal is to ensure the resilience of defense and critical infrastructure in Europe. Sunfire’s electrolyzers are set to be an indispensable component of the production plants.
2026: Industrial Implementation and European Strength
With its strong technology portfolio, European manufacturing base, and a growing number of industrial projects, Sunfire is well positioned to gain further market share in 2026 and play a key role in shaping Europe’s green hydrogen ramp-up.
[1] the world’s largest multi-megawatt high temperature electrolyzer in an industrial environment.
Sunfire is a global leader in the production of industrial electrolyzers based on pressurized alkaline and solid oxide (SOEC) technologies. With its electrolysis solutions, Sunfire is addressing a key challenge of today’s energy system: Providing renewable hydrogen and syngas as climate-neutral substitutes for fossil energy. Sunfire’s innovative and proven electrolysis technology enables the transformation of carbon-intensive industries that are currently dependent on fossil-based oil, gas, or coal. The company employs more than 650 people located in Germany and Switzerland.
For more information visit www.sunfire.de
