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Rockfin Case Study – A successful electrolyser stack integration

In this section you will get a glimpse of a real-world case study featuring Rockfin. Here we will showcase the successful integration story, learn from their experiences, challenges faced and final results.

About Rockfin

Rockfin sp z.oo is a world-leading engineering company specializing in the design, manufacture, testing and servicing of oil and fuel systems for gas turbines, steam turbines, generators, compressors and high-pressure drives and control systems. In 2022 Rockfin started its journey towards becoming an alkaline electrolyser system integrator, and chose Stargate pressurised alkaline stacks as the heart of their electrolysis systems.



Rockfin, a seasoned provider of skids and components manufacturer, with diverse assembly knowhow diversified its operations into the hydrogen production sector through the production of electrolysers utilizing Stargate’s Stack. In 2022 Rockfin kicked off a demo project that leverages excess energy from photovoltaics to venture into green hydrogen production utilizing Stargate’s alkaline stack.



Rockfin aimed to showcase its electrolyser system capabilities, demonstrate commitment to hydrogen through an unsubsidized project, and contribute to the decarbonization of the industry.

Why Stargate

Rockfin explored multiple stack suppliers but could not find the ideal partner. Stargate’s pressurized alkaline stack not only exhibited excellent compatibility but also provided comprehensive support since the first meeting and throughout the integration process. More over, the stacks configurability and the perspective of utilising in the future Stargate’s novel catalyst called STARDUST influenced in Rockfin’s decision.


Michał Wróblewski, Rockfin CEO – “The passion for electrolyser stack technology and the determination of the Stargate Team has been crucial to achieve this major milestone. We strongly believe in the long-term potential of hydrogen as a clean energy solution.”

Rockfin and Stargate Hydrogen announce completion of first pilot hydrogen project and signing of framework agreement.

The Outcome

The integrated system made its public debut at the Poznan Fair in Poland in May 2023. Rockfin successfully developed the Mini-Green box system, laying the foundation for future hydrogen production systems. The Mini-Green system is now available for sale, providing industries with an option to embark on their hydrogen journey.


The final result is an electrolysis system called: The Mini-Green Box, that is currently available for sale, providing industries with an option to embark on their hydrogen journey. The partnership led to mutual growth. Stargate elevated its safety standards, while Rockfin gained valuable insights into electrolysis. The collaboration not only achieved its objectives but also set the stage for continuous innovation in the field of green hydrogen production.


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Each hydrogen project is different and tailored to match the client’s needs. Contact us for a consultation with one of our engineers today.

    Eliminate CO2 emissions by switching to green hydrogen | Stargate Hydrogen

    Eliminate CO2 emissions by switching to green hydrogen

    Tailored solutions to match any application | Stargate Hydrogen

    Tailored solutions to match any application

    Reliable, industrially-proven technology | Stargate Hydrogen

    Reliable, industrially-proven technology

    Cost-effective, versatile, and scalable | Stargate Hydrogen

    Cost-effective, versatile, and scalable

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