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By Newlight Press Team
Communications
November 3, 2025
San Francisco, CA – November 3, 2025 — Newlight today announced the successful completion of Factory Acceptance Testing (FAT) for its hydrogen retrofit package for two- and four-stroke main engines that enable greater fuel efficiency and lower emissions – in a major step from prototype to ship installation.
The system allows existing diesel engines to operate on a blend of hydrogen and conventional fuel, reducing carbon emissions without the need to replace the entire engine. Designed and built to the International Code of Safety for Ship Using Gases or Other Low-flashpoint Fuels Code (IGF Code) and validated to RINA Class Rules for hydrogen fueled ships, the RINA-approved FAT verified the package's safety layers, control and monitoring logic, electrical integration, and engine behavior under representative duty profiles.
From dock to deep sea, Newlight proved its performance on:
Greater fuel efficiency and lower emissions were demonstrated while retaining confident control of the engines through real-world sea conditions and load swings, up to full open-water passages. Newlight validated precise hydrogen-blend injection timing, rock-solid load tracking, and continuous thermal/emissions monitoring - plus seamless, instant changeover between conventional fuel and hydrogen to maintain smooth engine performance with no downtime.
Over a focused four-day FAT program, Newlight exercised the full operating sequence of the hydrogen injection system end-to-end, demonstrating:
In collaboration with lomarlabs, Lomar, and AURELIA, Newlight's solution is now ready for retrofit on a commercial vessel with all interfaces set, layouts optimized, and approved according to class rules. With FAT complete, Newlight now moves into Harbor Acceptance Testing (HAT), which will be conducted under RINA's supervision, during commissioning of the first vessel.
Haran Cohen Hillel, Co-Founder & CEO, Newlight: "This milestone shows our hydrogen systems behave exactly as a ship operator expects - clear states, consistent responses, and conservative safety margins - with measurable efficiency gains. Users of the system will immediately see less fuel per nautical mile and lower emissions without any downtime or sacrificing performance."
Evyatar Cohen, Co-Founder, Newlight: "What I'm most proud of is the discipline in the controls and safety stack. From the moment the system vents to the moment it injects, every step is validated, logged, and recoverable. Operators get straightforward modes, dependable changeover to conventional fuel, and a retrofit that drops into existing machinery without the need for any vessel modifications."
Patrizio Di Francesco, North Europe Special Projects Manager, Principal Engineer, RINA: "Looking at the FAT results, I can confidently say that the solution is robust and safety-focused by design. Its detection, ventilation, segregation, and shutdown functions align well with the expectations outlined in the safety goals of the IGF code."
The maritime sector is moving to reduce emissions from existing fleets without sacrificing availability. By verifying the retrofit at factory level against the IGF Code and RINA Rules, Newlight gives shipowners a practical solution to adopt hydrogen-blend operation on existing in-service engines. The approach extends the life of the asset, avoids full powertrain replacement, and delivers immediate fuel savings and efficiency while fuel supply chains continue to develop.
With HAT and the first installation imminent, Newlight is focused on repeatable integration: standard interfaces to main engines and auxiliaries, straightforward documentation, and commissioning playbooks that shorten time at the yard.
For more information about Newlight's hydrogen retrofit technology, visit our website or contact our media relations team.