Variable Speed
Measurable Savings
Pump VFD Upgrade.
The Seawater Pump VFD Energy Saving System is a retrofit solution, designed to optimize pump operation by adjusting motor speed according to actual demand.
By replacing constant-speed pump operation with intelligent frequency control, vessels achieve measurable fuel savings, reduced electrical load, and improved machinery lifespan while enhancing CII performance and overall energy efficiency.
This solution is applicable to bulk carriers, tankers, container vessels, LNG carriers and other ocean-going ships.
The Challenge.
Conventional seawater pumps operate at constant speed regardless of engine load or ambient temperature conditions.
This results in:
- Excess electrical usage
- Unnecessary generator loading
- Increased fuel oil consumption
- Accelerated pump wear
- Higher emissions
The Solution.
The VFD system regulates pump speed based on:
- Main engine load
- Sea water temperature
- Cooling system pressure feedback
- Operational mode
By matching pump performance to actual demand, the system reduces excess power consumption while maintaining safe and stable cooling performance.
Compliance Contribution.
The VFD upgrade contributes to:
- EEXI compliance margin
- CII improvement
- EU ETS exposure reduction
- FuelEU Maritime preparation
- IMO DCS / EU MRV performance optimization
Smart Pumps.
Integrated solutions of Smart Variable Frequency Drive Upgrade for Marine Applications.
Key Benefits
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- Reduction of auxiliary power consumption
- Lower fuel oil consumption
- Improved CII rating
- Reduced generator running hours
- Extended pump and motor lifetime
- Reduced maintenance costs
- Short return on investment
Performance & Savings
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Typical fuel savings depend on vessel type and trading profile.
Energy reduction is achieved through:
- 20–50% pump power reduction during partial load
- Optimized cooling system pressure control
- Reduced generator loading
Short-term payback period, depending on vessel profile and fuel price.
Technical Features
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– Frequency inverter cabinet (marine type)
– Integrated control logic
– Automatic/manual operation modes
– Remote monitoring capability
– Protection & alarm system
– Compatible with existing cooling system
– Minimal structural modification required
Optional integration with vessel performance monitoring platform.
Turn-Key Package
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MAST Maritime Services S.A. provides:
- Pre-installation engineering study
- Electrical load analysis
- Class approval documentation
- Equipment supply
- Installation supervision
- Commissioning
- Post-installation performance verification
The retrofit can be performed during drydock or scheduled port stay.
Up to
50%
Reduced Load
What's Next.
We are more than happy to receive your inquiries about the Seawater Pump VFD evaluation studies of your existing and newbuild fleet in view of the upcoming measurements. In case you are interested in alternative energy efficiency development solutions, please do not hesitate to contact us as we offer a wide variety of solutions.
What's Next.
We are more than happy to receive your inquiries about the Seawater Pump VFD evaluation studies of your existing and newbuild fleet in view of the upcoming measurements. In case you are interested in alternative energy efficiency development solutions, please do not hesitate to contact us as we offer a wide variety of solutions.
