Objectives

ALL-DC-SHIPS aims to accelerate maritime decarbonisation by developing and validating full direct current (DC) power distribution systems for ships. The project focuses on improving energy efficiency, integrating renewable energy and storage, and enabling scalable electrification across vessel types. Key phases include systems design, prototype development, lab integration, and real-world testing on a 3000 GT dredger.

Impact

The project supports the EU’s climate goals and responds to regulatory changes such as the Emissions Trading System for maritime CO₂ emissions. By reducing fuel consumption and enabling flexible energy integration, ALL-DC-SHIPS contributes to lower emissions, improved vessel performance, and enhanced safety.

It will verify the performance of DC power systems and energy management strategies in real-world conditions, demonstrating their potential to reduce fuel use and environmental impact. The project also explores scalability for larger vessels, laying the groundwork for widespread industrial adoption.

ALL-DC-SHIPS represents a major step toward next-generation marine electrification, leveraging innovative technologies to build a more sustainable maritime transport sector.

Key Innovations

• Primary DC Grid (1,000 V): Reduces power losses, enables optimal generator operation, and simplifies integration of renewables and storage. 
• Secondary DC Grid (400 V / 24–48 V): Minimises conversion steps and improves efficiency for auxiliary loads. 
• High-Efficiency DC-DC Converters: Silicon-carbide-based converters offer up to 20% weight savings and 15% lower losses. 
• Solid-State Circuit Breakers (SSCBs): Fast fault isolation and protection for both primary and secondary grids, enhancing safety and reliability. 
• Plug & Play Integration: Components communicate with vessel control systems for faster commissioning and improved interoperability. 
• Standardisation Efforts: Collaboration with technical committees to support future DC standards for maritime applications. 

Consortium

ALL-DC-SHIPS is delivered by a multidisciplinary European consortium of maritime technology developers, research institutions, classification societies, and policy experts, consisting of 12 partners across 8 European countries. This collaboration ensures robust innovation, regulatory compliance, and practical implementation across the maritime sector. More information on the consortium can be found on the Partners page.