We Engineer and Integrate Green Power Generation Systems
For more than 10 years, eCap Marine has specialised in engineering and integrating innovative, environmentally-friendly power generation solutions for green marine propulsion systems or flexible onshore power supply.
eCap Marine offers our clients comprehensive know-how and services, ranging from feasibility study, technical design, engineering, and designing gaseous fuel systems and its derivates, ensuring all required approvals from relevant authorities and classification societies are met and complied.
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PROJECT REFERENCE
H2PowerPac on OSV Coastal Liberty in the Wadden Sea

The Offshore Supply Vessel (OSV) “Coastal Liberty” has transitioned to green hydrogen as its primary energy source, becoming emission-free after being retrofitted with a hydrogen power system by eCap Marine. This new propulsion system is driven by fuel cells and a battery system as a buffer, demonstrating a sustainable and efficient energy solution.
Green hydrogen is produced locally by utilising offshore wind power. eCap Marine also developed and designed the swappable hydrogen tank systems, which enable easy, safe handling thanks to their tool-less design and standard connections.
A turnkey and lighthouse project led, engineered and integrated by eCap Marine. DNV class has been approved since February 2024. The OSV sails daily on the waters of the Wadden Sea in Cuxhaven, Germany, in the North Sea region. The operation thus far has also proven to be a great success. Therefore, such scalable, emission-free technology solutions can contribute to a greener maritime future!