Electrical products form the backbone of marine power and propulsion. In a typical configuration, the marine power management system works together with the vessel main switchboard (MSB), power distribution switchboards, marine variable frequency drives (VFD) and net frequency stabilizer systems to ensure stable, efficient and safe operation for all onboard.
By selecting the right combination of switchboards, drives, motors/generators and management systems, operators can achieve:
Higher vessel uptime and availability
Reduced fuel and energy consumption
Enhanced safety through coordinated protection and control
A future-ready platform for hybrid and fully electric propulsion
The solution portfolio is designed specifically for marine environments and classification requirements, and offers the following core features:
Electrical products and integrated marine power management systems are deployed across a wide range of marine segments:
Dynamic positioning, heavy consumers and variable propulsion loads.
High-demand auxiliary systems and complex redundancy requirements.
Stable power for propulsion, cargo handling and hotel loads.
Frequent load changes, bollard pulls and maneuvering cycles that benefit from precise power control.
Berg Propulsion’s electrical products are widely deployed in modern tugboat and workboat operations, where uptime, responsiveness and safety are critical. Customers value the combination of:
No two vessels are the same, and neither are our CPP systems. We collaborate closely with designers to create fully customized propulsion solutions that meet the unique demands of each project. Together, we design the setup that’s right for your vessel.
We tailor everything from propeller size and blade design to gearbox ratios and control system functionality, fine-tuning the entire setup to match your vessel’s performance goals.
Need a tailored solution? Let us know!
Discuss your vessel’s requirements with our propulsion specialists. Request a performance estimate, engineering evaluation, or integration plan to see how our Electric Products can improve efficiency and reliability across your fleet.
The marine main switchboard (MSB) is the electrical heart of the vessel, distributing power from generators to propulsion drives, thrusters and auxiliaries. In this solution, the ship power management system is integrated with the main switchboard, combining protection, control and monitoring in one compact, marine-optimized design.
Key aspects of the vessel main switchboard and marine power distribution switchboards include:
Marine variable frequency drives (VFD) and marine variable speed drives are critical to efficient electric propulsion and thruster operation. They precisely control motor speed and torque, enabling optimized thrust at any operating point.
Typical roles of marine VFD systems within this product family include:
When shaft generators or variable-speed prime movers are connected to the onboard electrical network, frequency stability becomes a key challenge. A marine net frequency stabilizer (NFS) or ship network frequency stabilizer system compensates for variations in shaft speed and load, ensuring a stable frequency supply to the vessel network.
In a typical configuration:
The Direct Drive Electric has been successfully implemented on cargo and luxury vessels across Europe, delivering proven performance gains in efficiency, comfort, and sustainability.
Frequently Asked Questions. Don’t find what you are looking for? Contact us directly.
A ship power management system is an automated control system that manages generators, switchboards and large consumers to ensure a stable and efficient power supply onboard. It takes care of generator start/stop, load sharing, synchronization and load shedding to prevent blackouts and optimize fuel consumption.
The PMS monitors generator loading, bus voltages and frequencies in real time and can start standby generators or shed non-critical loads before limits are exceeded. In the event of a disturbance, it executes pre-defined blackout prevention and recovery sequences, dramatically reducing the risk of a total loss of power.
The marine main switchboard distributes power from generators to propulsion, thrusters, auxiliaries and hotel loads, and houses key protection and control devices. When the vessel main switchboard is tightly integrated with the ship power management system, operators gain better visibility, faster protection response and a more compact, reliable installation.
Marine VFDs allow precise speed and torque control of propulsion and thruster motors, which improves maneuverability and reduces energy consumption under part-load conditions. Together with the vessel propulsion power management system, they help match power production to actual thrust demand, lowering fuel burn and emissions.
A marine net frequency stabilizer is a control and conversion system that keeps the onboard network frequency within required limits, even when driven by variable-speed sources like shaft generators. By stabilizing frequency, the NFS protects sensitive equipment, improves power quality and enables efficient use of mechanical shaft power for electric generation.
In hybrid vessels, the PMS coordinates the operation of diesel generators, batteries, shaft generators and possibly fuel cells to meet propulsion and hotel loads at minimum environmental impact. It can prioritize low-emission modes, manage charging strategies and ensure that all energy sources stay within safe operating limits.
Yes, modern marine power management systems are designed for integration with third-party integrated automation systems (IAS), DP systems and propulsion control systems via standard communication protocols. This enables centralized monitoring and control while maintaining clear boundaries and responsibilities between systems.
PMS, main switchboards and related protection systems must meet the requirements of the relevant classification society for generator control, protection, redundancy and blackout prevention. This typically includes rules for selectivity, short-circuit performance, redundancy of power generation and minimum levels of automation and alarms.
Vessels with highly variable load profiles, such as tugs, offshore support vessels, ferries and research vessels, benefit significantly from advanced PMS, VFD propulsion and hybrid architectures. These technologies reduce fuel consumption, emissions and noise while improving maneuvering performance and redundancy.
By combining a flexible ship power management system, efficient marine VFD systems, and provisions for hybrid and alternative energy sources, the electrical platform can evolve with tightening IMO and regional regulations. Operators can phase in batteries, alternative fuels or additional energy-saving measures without redesigning the core electrical backbone.
We are looking forward to hearingfrom you and discussing how we can be of assistance in making sure that your fleet is fully covered.
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At Berg Propulsion we are specialists in propulsion solutions, trusted for delivering reliable, efficient, and customized systems, supported by worldwide lifecycle support, keeping our customers moving forward with confidence.
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475 40 Hönö, Sweden
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