Stargate Hydrogen secures investment from Repsol to drive green hydrogen production

A European innovator specialising in the next-generation of alkaline electrolysers for the efficient and cost-effective production of green hydrogen has formed an alliance with a global integrated energy group headquartered in Spain.  

Stargate Hydrogen and Repsol have started this new industry alliance to reduce the cost of renewable hydrogen production, accelerate the decarbonisation of heavy industries and enhance Europe's energy independence in critical energy production technologies.

The transaction, in which Repsol’s Corporate Venture arm acquired a minority stake in Stargate Hydrogen's share capital, strengthens Stargate’s position as an international benchmark in technological leadership and competitiveness in the renewable hydrogen sector. 

Image ©Stargate Hydrogen

Earlier in 2025, Stargate secured a 11 million EUR Series A funding round and inaugurated its new factory. The incorporation of Repsol as an industry partner reinforces this momentum and will enable the expansion of its manufacturing capacity, accelerate research and development initiatives, as well as strengthening its commercial operations across Europe, the Middle East and Asia. 

Marko Virkebau, CEO of Stargate Hydrogen, said: "Repsol is the largest producer and consumer of hydrogen in Spain; therefore, it has extensive first-hand experience of the complexities of hydrogen projects. We are delighted that this partnership will allow us to work together on multiple fronts, from R&D and product development to commercial deployment of Stargate's innovative electrolyser technology."

Gema García, Director of Open Innovation and Corporate Venturing at Repsol, added: "Renewable hydrogen is essential to our decarbonisation roadmap. What we are looking for are innovative approaches to its production, enabling more efficient operations. We have closely followed Stargate Hydrogen's work in recent years and are confident that it can be a great ally for us to accelerate our renewable hydrogen developments."

Stargate Hydrogen's patented technology, featuring advanced ceramic catalyst materials and novel stack design, offers significant economic advantages over competing solutions, enabling affordable renewable hydrogen production on a large scale. The company’s current manufacturing capacity is 140 MW per year, which can be scaled up to 1GW+ with modest additional investments.

For more information, visit www.stargatehydrogen.com.