Berg Propulsion Retrofits
Modern Propulsion Performance for Proven Vessels
A retrofit is more than a propeller replacement. It is a strategic investment in the long-term performance, efficiency, and compliance of a vessel that has already proven its worth. As the authorized Berg Propulsion distributor for the United States, Thompson Marine engineers and manages comprehensive retrofit programs that modernize existing propulsion systems from the shaftline out, combining Berg Propulsion’s advanced hydrodynamic technology with Thompson Marine’s in-house engineering and integration capabilities. A Berg Propulsion retrofit is essential for optimizing performance. When considering a retrofit, operators can expect enhanced fuel efficiency and operational reliability.
Propulsion UPGRADES
When a Retrofit Makes Sense
Propulsion upgrades deliver the greatest return when they address a specific operational challenge or prepare a vessel for what comes next. A Berg Propulsion retrofit engineered by Thompson Marine is the right solution when:
Fuel costs are climbing.
Optimized blade geometry and propeller pitch management can reduce fuel consumption by 10 to 25 percent across a vessel’s operational profile, lowering both operating expenses and carbon intensity.
Performance no longer matches the mission.
Changes in route, load, or duty cycle often outpace the capabilities of the original propulsion system. A retrofit realigns the propulsion plant with how the vessel actually operates.
Emissions compliance is on the horizon.
Regulatory pressure from IMO efficiency standards, including EEXI and CII frameworks, is accelerating across the commercial fleet. A well-designed retrofit positions a vessel ahead of those requirements rather than behind them.
Hybrid or electric integration is part of the plan.
Berg Propulsion’s control platform is designed to support mechanical, electric, and battery power sources within a single integrated system. A retrofit today lays the foundation for hybrid conversion tomorrow without requiring a second round of major upgrades.
Aging equipment is creating operational risk.
When components approach end of service life, a retrofit delivers modernized reliability along with improved performance, while restoring access to current OEM parts and support infrastructure.
The Berg Control System: One Platform, Every Power Source
One of the most operationally significant advantages of a Berg Propulsion retrofit is the control architecture it delivers. The Berg control platform manages mechanical, electric, and battery power sources natively within a single integrated system, without relying on third-party bridging software or external automation layers.
This matters for fleet operators planning hybrid transitions in stages. The control system installed during a retrofit is the same platform that manages hybrid operations when power sources change. There is no need to replace or re-engineer the control architecture later.
Engineering-Led Integration
A retrofit that performs over the long term requires a systems-level approach, not a component swap. Thompson Marine’s engineering team evaluates the complete powertrain before specifying any equipment, ensuring that the new propulsion system is optimized for the existing vessel rather than simply installed in it.
Shaftline and system validation
Every retrofit engagement includes rigorous analytical work to verify compatibility and performance before installation begins. This includes shaft whirling analysis, Finite Element Analysis, six-degrees-of-motion studies, and vibration isolation assessment to ensure smooth and reliable operation after the vessel returns to service.
Full powertrain alignment
New Berg Propulsion propellers, thrusters, and control systems are matched against existing marine gears, power management systems, and vessel controls to ensure seamless integration across the entire propulsion plant.
Shipyard-ready documentation
Thompson Marine provides a complete project package for the shipyard, including installation drawings, wiring schematics, shaftline layouts, and custom piping designs. This documentation reduces installation time and eliminates ambiguity during the upgrade.
berg propulsion
Fleet Retrofit Programs and Strategic Planning
For operators managing multiple vessels, a phased retrofit program offers a structured path to fleet-wide modernization without disrupting operations. Thompson Marine works with fleet managers to develop upgrade plans that align with scheduled dry-dock windows, maintenance cycles, and capital budgets.
Coordinated scheduling
Thompson Marine works directly with operators and preferred shipyards to plan and sequence upgrades around existing maintenance windows, keeping vessels in service as much as possible throughout the program.
Lifecycle Planning
A Thompson Marine/Berg Propulsion retrofit program extends the productive service life of existing assets while ensuring those assets remain compliant, efficient, and competitive as regulations and operational expectations continue to evolve.
Parts Readiness and Field Support
Berg OEM parts inventory
Thompson Marine maintains deep stock of Berg Propulsion components and critical spares, so the parts needed for a retrofit, a repair, or a planned maintenance event are ready when the vessel reaches dry dock.
Swing Unit Program
For critical thruster and controllable pitch propeller components, Thompson Marine’s Swing Unit Program provides ready replacement assemblies that eliminate long-lead manufacturing wait times. When a vessel arrives at the yard, the components are already on hand.
Rapid-response field service
Thompson Marine’s factory-trained technicians are available for rapid deployment across the Americas to support commissioning, planned maintenance, and emergency response throughout the life of every installation.
