Integrated Propulsion Systems from Bridge to Propeller

Marine Propulsion Systems

BOS Power designs and integrates marine propulsion systems around the vessel’s operational requirements and technical specifications. We bring propulsion, power, automation and supporting systems together into a complete solution, with engineering and support throughout the project and vessel lifecycle.

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Explore our solutions

System Integration

One Partner for Your Marine Propulsion System

Depending on the project scope, BOS Power can take responsibility for the propulsion system from system design and engineering to integration, commissioning and lifecycle support. The exact scope is defined for each project. With one partner coordinating the technologies and interfaces throughout the project, you get a solution developed around your vessel requirements and operational needs.

Choosing a Propulsion System

What Determines the Right Propulsion System for Your Vessel?

Operating profile, power requirements and technical specifications all influence the choice of propulsion system.

BOS Power works with your requirements to identify and integrate a system suited to the vessel and its intended operation.

Key considerations may include:

Vessel requirements and specifications
Operational profile
Power and performance requirements
Weight and space constraints
Fuel or energy source
Emissions and regulatory requirements

Spørsmål til BOS Power

NB: Spørsmål oppdateres eventuelt etter intern avklaring rundt diagram.

Viktig teknisk validering: Vi trenger at en Marine-fagekspert går gjennom hele diagrammet.

Er komponentene riktig plassert i forhold til hverandre?
Er Generator Sets riktig fremstilt?
Er Automation riktig fremstilt som control layer?
Er Exhaust Gas Aftertreatment riktig koblet til relevante combustion-based systems?
Skal CPP / Servogear være eksplisitt del av «from bridge to propeller»?
Mangler det en vesentlig systemkomponent?

Diagrammet skal forklare prinsippet, ikke være et komplett teknisk systemdiagram.

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Marine Applications

Propulsion Solutions for Different Vessel Operations

BOS Power provides marine propulsion solutions for different vessel types and operational requirements, from high-speed passenger transport and ferries to workboats, offshore support, search and rescue, and patrol vessels.

Passenger Transport | Marine | BOS Power Solutions

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High-speed passenger transport

High-speed passenger transportEnergy efficiency and high uptime are key factors for commercial passenger vessels. With propulsion systems that focus on weight and operational flexibility, you can secure maximum up-time and safe sailing.

Crew Transfer Vessel | Marine | BOS Power Solutions

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Workboat

WorkboatA complete propulsion system from bridge to propeller that focus on operational excellence will provide high-speed capability and high bollard pull for your heavy use application.

Service Operation Vessel | Marine | BOS Power Solutions

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SOV & CSOV Service Operation and Construction Support Vessels

SOV & CSOVService Operation and Construction Support VesselsService Operation Vessels and Construction Support Offshore Vessels require reliable propulsion and power systems for demanding offshore operations. BOS Power provides solutions designed around operational efficiency, vessel performance, and reliable operation.

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Search and Rescue

Search and RescueIt is vital for search and rescue to have a reliable and high performance propulsion system that provides maximum safety and heavy-duty service. The vessels must deliver excellent performance response, powerful acceleration and the highest levels of maneuverability in extreme conditions.

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Patrol

PatrolEffective operation, low fuel consumption and long service intervals are vital for demanding high speed patrol vessels. A well balanced power-to-weight ratio design helps ensure maximum reliability and availability.

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Ferries

FerriesFerries require reliable propulsion systems designed for predictable operations, frequent duty cycles and efficient energy use. BOS Power provides propulsion solutions for smaller and medium-sized ferries, adapted to the vessel’s operating profile and technical requirements.

From Requirements to Operational Propulsion System

BOS Power supports the project from initial requirements and system configuration through engineering, integration and commissioning.

Talk to a Marine Expert

From Planning to Lifecycle Support

Vessel requirements and system configuration
Propulsion system engineering
System integration
Project execution
Commissioning
Service and lifecycle support

Buyer’s Guide

How to Select the Right Marine Propulsion Supplier

The right marine propulsion supplier depends on your vessel, operational profile and project requirements. Key considerations include relevant experience, service capabilities, system configuration, total cost of ownership and emissions requirements.

Our Buyer’s Guide covers seven questions to consider when selecting a supplier for hybrid and electric marine propulsion.

Read the Guide

Frequently asked questions

How long is the TBO on an MTU genset? The TBO is subject to the load profile of the engine. MTU gensets are typically rated for a TBO beyond 42,000 running hours, a figure exceeding numbers seen for medium-speed engines, achieved here in a more compact, high-speed package. On a variable-speed genset, that interval can be extended by more than 30% for a typical operating profile, since the engine spends most of its time running below rated speed. This means fewer overhaul cycles and less downtime over the vessel's lifetime.

Can variable-speed gensets reduce fuel consumption? Yes. By allowing the engine to run below its rated speed at part load, variable-speed gensets can cut fuel consumption compared to an equivalent constant-speed setup, with typical savings in the range of 10 to 15% depending on the vessel's load profile. This is especially relevant for vessels that spend significant time in DP mode or at partial load, such as offshore support vessels. Variable speed also gives lower noise and vibration at part load, alongside the extended TBO mentioned above.

What power range do MTU gensets cover? For commercial marine and offshore, MTU gensets cover 700 kWe up to 3,100 kWe (Series 4000), with diesel and gas fueled options, 50 Hz, 60 Hz or variable speed, and IMO III / EPA Tier 4 compliance. For main propulsion engines, the wider MTU range extends up to 10,000 kW.

Why choose BOS Power for MTU gensets? BOS Power has been the MTU distributor in the Nordics since 1969, backed by service technicians and workshops across the region. MTU gensets are engineered for high power density, low noise and vibration, low radiated heat, and quick load response. These properties translate directly into crew comfort, regulatory compliance, and uptime.

Do MTU gensets meet IMO Tier III NOx requirements? Yes. MTU gensets are available with SCR (Selective Catalytic Reduction) exhaust aftertreatment engineered specifically for MTU engines, meeting both IMO Tier III and EPA Tier 4 requirements. The system uses closed loop control to ensure continual emission compliance and optimal DEF dosing, and has been extensively tested in both test cells and real operating conditions.