Maritime Drive & Vessel Energy Architecture

Decarbonising Vessels from
Direct Drive to Shore Power.

Comprehensive marine drive integration for harbour tugs, passenger ferries, workboats, and coastal dredgers: >95% electric motor efficiency, up to 28% hybrid fuel savings, and 1.6 MW+ rapid shore charging interfaces.

Drive Efficiency: > 95%
Hybrid Fuel Reduction: Up to 28%
Shore Charger Capacity: 1.6 MW+
Direct Drive Torque: Up to 60k+ Nm

07Marine Vessel Electrification · Technology Reference

Electric Vessel Propulsion & Shore Power Architecture.

Through certified marine drive systems, high-torque direct-drive synchronous motors, and high-power shore charging interfaces, modern ports can decarbonise harbor tugs, ferries, workboats, and cargo vessels with over 95% drive efficiency.

Baumüller Shipbuilding Reference

>95% System Efficiency100% Zero Direct Emissions

Fully Electric Battery-Run Vessel Propulsion

Zero-emission quiet navigation with >95% drive efficiency

Pure battery-electric propulsion eliminating onboard diesel engines entirely. Powered by high-density marine lithium-ion battery banks and converter-fed synchronous electric motors, enabling vibration-free and particulate-free harbour operations.

Key Operational Advantages

Complete elimination of NOx, SOx, and particulate emissions in port air basins
Whisper-quiet acoustic profile vital for urban passenger ferries and marine sanctuaries
Immediate torque delivery for precise harbor maneuvering and docking
Rapid turnaround with automated megawatt shore charging interfaces

System Efficiency: > 95%
Drive Topology: Converter-fed Synchronous Motor
Energy Source: Marine Certified Li-Ion Battery Banks
Power Rating Range: 50 kW to 2,000+ kW per shaft

Baumüller Shipbuilding DivisionExplore Direct Specification

Optimum RPM OperationUp to 28% Fuel Reduction

Diesel-Electric & Methanol Hybrid Ship Drives

Up to 28% fuel reduction with constant optimal generator load

The ship propellers are driven electrically by converter-fed synchronous motors that draw power from optimized diesel or clean methanol generators. Decoupling propulsion speed from engine RPM allows generators to run continuously in their peak-efficiency sweet spot.

Key Operational Advantages

Generators decoupled from hydrodynamic load spikes, enabling downsized engine sets
Up to 28% reduction in fuel consumption across variable tidal and harbor conditions
Redundant multi-generator configuration ensuring uninterrupted propulsion safety
Seamless integration with onboard battery storage for peak shaving and zero-emission harbor entry

Fuel Savings: Up to 28% in active waterways
Propulsion Motors: Baumüller DST2 Synchronous Series
Generator Sets: Variable multi-gen diesel / methanol
Noise & Vibration: Dramatically reduced vs direct shaft

Baumüller Shipbuilding DivisionExplore Direct Specification

Compact Power DensityDirect Shaft Coupling

DST2 High-Torque Direct Drive Motors

Compact, water-cooled synchronous power for marine propulsion

High-pole synchronous electric motors engineered specifically for maritime direct drive applications without mechanical reduction gearboxes. Featuring high torque density, water-cooled enclosures, and DNV/marine classification certifications.

Key Operational Advantages

Gearbox-free direct propeller coupling minimizes mechanical losses and maintenance
Extremely compact footprint fits tight engine rooms and azimuth thruster pods
Water-cooled marine housing ensures robust thermal stability in tropical seawater
Certified for shipping and classification societies worldwide

Motor Family: DST2 Marine Direct-Drive
Torque Output: Up to 60,000+ Nm
Cooling System: Integrated Seawater / Glycol Cooling
Certification: Marine Classification Approved

Baumüller Shipbuilding DivisionExplore Direct Specification

Grid-to-Vessel OrchestrationZero-Emission Berth Dwell

High-Power Vessel Shore Charging Systems

1.6 MW+ fast charging and cold ironing grid interface

High-power automated charging systems and cold-ironing shore power connection stations capable of delivering up to 1.6+ MW to vessel batteries during passenger disembarkation, cargo discharge, or overnight dwell.

Key Operational Advantages

Ultra-fast turnaround charging for scheduled passenger and vehicle ferries
Cold ironing shore power eliminates auxiliary diesel generator emissions at berth
Harmonic-filtered power electronic converters preserve port microgrid stability
Automated pantograph and heavy-cable umbilical connection protocols

Charging Output: Up to 1.6 MW+ Fast Shore Charger
Interface Protocol: IEC 80005-1 / Automated Pantograph
Grid Coupling: 11kV/33kV Substation via Active Front End
Power Factor: > 0.98 at full rating

Baumüller Shipbuilding DivisionExplore Direct Specification

Operational Reference Fleet

Proven E-Ship & Hybrid Vessel Implementations

Real-world maritime deployments utilizing high-torque direct drive electric motors and megawatt shore infrastructure.

Fully Electric2021

Ceresio (Lake Lugano Ferry)

Passenger Ferry · 31.35 m × 6.28 m

A landmark fully electric passenger vessel conversion operating on Lake Lugano. Powered by twin DST2-260 direct drive motors and an 840 kWh battery pack, recharged between runs via a 1.6 MW ultra-fast shore charger.

2x DST2-260 synchronous electric motors (180 kW each)

840 kWh Marine Lithium-Ion Battery Storage

1.6 MW High-Power Rapid Shore Charging Station

View Baumüller Vessel Record

Diesel-Electric Hybrid2022

MS Aquadelta

Water Injection Dredger · 48.0 m × 12.0 m

High-efficiency commercial dredging vessel equipped with a diesel-electric drive system. 5 downsized generators feed electric rudder thrusters, maintaining peak engine efficiency under extreme dredging resistance.

2x 450 kW Rudder Propellers driven by electric motors

5x Optimized Diesel Generators with dynamic power management

Integrated onboard PMS & Shore connection

View Baumüller Vessel Record

Fully Electric2019

Qi-Fu No. 1

Urban Harbour Ferry · 25.0 m × 5.8 m

Zero-emission municipal passenger ferry engineered for high-frequency urban harbor transit in Taiwan, delivering whisper-quiet harbor passages and zero tailpipe emissions.

Twin synchronous electric motors with direct drive

Marine Li-Ion high-cycle battery system

Automated dockside shore power interface

View Baumüller Vessel Record

Diesel-Electric Hybrid2019–2020

Trischen & MS Emmerich

Maritime Authority Workboats (WSA) · 22.0 m – 38.0 m × 7.5 m – 8.0 m

German Federal Waterways and Shipping Administration (WSA) work vessels featuring dual DST2 225 kW electric drives for long patrol endurance, low vibration, and superior low-speed maneuverability.

2x DST2 225 kW electric drive units per vessel

Scania diesel generators with power converter matrix

Harbor shore connection interface

View Baumüller Vessel Record

Fully Electric2023

eD-TEC High-Speed Marine Craft

Electric Performance Craft · 10.5 m × 3.2 m

High-performance fully electric hydrofoil speed craft demonstrating extreme power density, rapid acceleration, and cutting-edge marine electronic controls.

High-RPM compact electric marine drive unit

Ultra-high-density lightweight marine battery pack

High-speed DC marine fast charger

View Baumüller Vessel Record

Technical Reference & Engineering Attribution:

Marine propulsion architectures, direct-drive DST2 synchronous motor data, and vessel case records are cited under fair use for port electrification infrastructure engineering. For original documentation, system sizing calculators, and manufacturer marine certifications, visit Baumüller Marine Solutions (baumueller.com).

Port Vessel Integration

Ready to electrify harbour fleets and berth charging?

Integrate electric vessel charging plazas, cold ironing connections, and high-torque direct drive retrofits into your port masterplan.

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Loading Solostar Port Energy

Decarbonising Vessels from
Direct Drive to Shore Power.

Drive Efficiency

> 95%

Hybrid Fuel Reduction

Up to 28%

Shore Charger Capacity

1.6 MW+

Direct Drive Torque

Up to 60k+ Nm

Decarbonising Vessels fromDirect Drive to Shore Power.

Electric Vessel Propulsion & Shore Power Architecture.

Fully Electric Battery-Run Vessel Propulsion

Diesel-Electric & Methanol Hybrid Ship Drives

DST2 High-Torque Direct Drive Motors

High-Power Vessel Shore Charging Systems

Proven E-Ship & Hybrid Vessel Implementations

Ceresio (Lake Lugano Ferry)

MS Aquadelta

Qi-Fu No. 1

Trischen & MS Emmerich

eD-TEC High-Speed Marine Craft

Ready to electrify harbour fleets and berth charging?

Decarbonising Vessels fromDirect Drive to Shore Power.

Electric Vessel Propulsion & Shore Power Architecture.

Fully Electric Battery-Run Vessel Propulsion

Diesel-Electric & Methanol Hybrid Ship Drives

DST2 High-Torque Direct Drive Motors

High-Power Vessel Shore Charging Systems

Proven E-Ship & Hybrid Vessel Implementations

Ceresio (Lake Lugano Ferry)

MS Aquadelta

Qi-Fu No. 1

Trischen & MS Emmerich

eD-TEC High-Speed Marine Craft

Ready to electrify harbour fleets and berth charging?

Decarbonising Vessels from
Direct Drive to Shore Power.

Decarbonising Vessels from
Direct Drive to Shore Power.