Hydrogen Engine Development
We see hydrogen as the driving force of a cleaner future. Our mission is to turn this vision into powerful engines that deliver real-world performance. From heavy-duty trucks to passenger cars, motorsport, motorcycles and power generators – the possibilities are broad and ambitious. Zero CO₂, ultra-low NOx and uncompromising high power.
Cutting H2ICE project timelines with simulation

Hydrogen Engine Development
Developing a hydrogen engine requires more than adapting fossil-fuel expertise. Gasoline or diesel know-how alone is not enough. You need true hydrogen specialists. By seamlessly integrating simulation, testing and combustion science, we optimize every step for hydrogen, minimizing risks and ensuring maximum performance. With our unique expertise, we accelerate your path from concept to prototype.
Accelerating Hydrogen Engine Development
With unmatched expertise in hydrogen combustion, simulation and testing, we deliver what others cannot: rapid development cycles, reliable performance and engines ready for real-world application. Our unique Fossil-to-Hydrogen Conversion approach is backed by years of research and over 30 scientific studies, patents and theses. Today, this expertise is at your service within a condensed, highly efficient project timeline. When it comes to hydrogen engines, trust the partner who turns innovation into proven results.
Our H2-Engine rapid development approach allows you to reduce project implementation time and cut project costs by up to 50% compared to competitors offering the same high quality.
Our unique Fossil-to-Hydrogen Conversion approach builds on more than 30 projects, patents, and academic theses, making it both robust and highly reliable.
Why partner with Felsaris on H2ICE?
Developing a hydrogen engine requires more than adapting fossil-fuel expertise. Gasoline or diesel know-how alone is not enough. You need true hydrogen specialists. By seamlessly integrating simulation, testing and combustion science, we optimize every step for hydrogen, minimizing risks and ensuring maximum performance. With our unique expertise, we accelerate your path from concept to prototype.
Others
Often focus on conventional gasoline and diesel solutions, with little to no dedicated hydrogen experience.
Standard modeling tools are not fully adapted to hydrogen, which can slow progress and reduce performance.
Practical hydrogen engine testing is still at an early stage in many companies. Some focus only on simulation, others only on experiments.
Typical project durations often exceed two years.
No comparable track record of scientific studies, patents, or theses specifically dedicated to hydrogen conversion.
Hydrogen projects are usually treated as side topics rather than core expertise.
Felsaris
We combine deep hydrogen expertise with proven combustion and engine know-how.
More than 30 scientific studies, patents, and thesises went into our unique fossil-to-hydrogen conversion approach. A foundation no other provider can match.
Our proprietary hydrogen combustion simulation modules deliver fast and precise results, cutting development timelines by 1-2 years.
We have extensive testing experience across engine sizes and power ranges, working closely with academic and industrial partners.
We deliver H₂ engine prototypes in just 8–18 months, ready for real-world application.
We are fully dedicated to hydrogen engines like no other service provider.
Ready to bring your idea to life?
Contact us to receive a personalized offer for your project — or see if our flexible CAD/CFD on-demand solutions are the right fit to get you started quickly.