German electrolyzer specialist Sunfire has secured orders to deliver two 100-megawatt electrolyzers for renewable hydrogen projects in Spain. The announcement was made on January 27, 2026, from the company's Dresden headquarters.

Project Locations and Partners

The first 100 MW electrolyzer will be installed near Repsol's industrial complex in Cartagena. This project is being led by Repsol, Spain's largest hydrogen producer, in partnership with Enagás Renovable. The second 100 MW plant will be located at Petronor's refinery in Muskiz, near Bilbao. Petronor is owned by Repsol and Kutxabank.

Nils Aldag, CEO of Sunfire, commented on the orders: "Spain offers strong conditions for green hydrogen, and we recognized this potential early on. We are proud that Repsol is once again choosing our proven pressurized alkaline technology to produce renewable hydrogen at scale. Together, we are advancing Spain's leading role in green hydrogen."

Technical Specifications and Production Capacity

For each of the two 100 MW projects, Sunfire will deliver 10 pressurized alkaline electrolyzer modules, each with a 10 MW capacity. The plants will be integrated into existing refinery operations and will become part of the regional hydrogen infrastructure.

Once commissioned in 2029, each 100 MW plant will produce up to 15,000 tons of hydrogen annually using renewable electricity. The renewable hydrogen produced will be supplied to Repsol's industrial complexes to manufacture essential fuels with a significantly lower carbon footprint.

Environmental Impact and Previous Projects

Each project is expected to avoid up to 167,000 tons of CO2 emissions annually. The projects represent a significant step forward in Repsol's roadmap to replace conventional hydrogen with renewable hydrogen across its industrial sites.

Sunfire has already delivered a 10 MW pressurized alkaline electrolyzer to Basque Hydrogen, a project involving Petronor, EVE, and Enagas Renovable in Spain. This electrolyzer is currently being installed at the Port of Bilbao. The 200 MW follow-up order demonstrates Sunfire's reliability, scalability, and execution strength.

Beyond its partnership with Repsol, Sunfire holds additional industrial references, including a 100 MW order from RWE in Lingen, Germany.

Strategic Significance for Spain's Energy Goals

The projects will contribute to Spain's decarbonization targets by 2030 and help reinforce the development of the renewable hydrogen market. The initiatives are designed to reduce reliance on imported fossil fuels and strengthen energy security.

The partnerships support Spain's 2030 electrolysis target as part of the country's broader renewable energy strategy. Sunfire describes itself as a global leader in the production of industrial electrolyzers based on pressurized alkaline and solid oxide (SOEC) technologies.

The company's electrolysis solutions address what it identifies as a key challenge of today's energy system: providing renewable hydrogen and syngas as climate-neutral substitutes for fossil energy. Sunfire's technology enables the transformation of carbon-intensive industries that are currently dependent on fossil fuels such as oil, gas, and coal. The company employs more than 700 people located in Germany.

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