Shore power supply makes for clean harbors
When using drive technology in a shore-supply solution, ships can source clean energy from local grids. The ship’s main generators can be switched off completely to prevent unnecessary local NOx and carbon emissions and noise pollution while the vessel is docked.
Danfoss Drives provide drives and inverters which convert the 50Hz shore power to the 60Hz power typically used onboard sea going ships. Grid converters use Active Front End AFE technology with proper software able to create and synchronize the AC-grid (micro grid) to the ship's grid.

2-month ROI for FAYARD A/S shipyard
Electric shore supply system using VACON® NXP Air Cooled drives meets peak demands while minimizing baseline power consumption.
Products
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }VACON® NXP Air CooledDesigned for a broad range of demanding applications, focusing on higher power sizes and system drives.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }VACON® NXP Common DC BusEnables system integrators, machine builders and OEMs to design and build efficient industrial drives systems. Active Front-end (NXA), Non-regenerative Front-end (NXN), Brake Chopper (NXB) and Inverter (NXI) configurations are available.
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; } else if (isBigColumns) { } else { }VACON® NXP Liquid Cooled Common DC BusBrings the benefits of liquid-cooling into common DC bus systems in demanding situations. Active Front-end (NXA), Non-regenerative Front-end (NXN), Brake Chopper (NXB) and Inverter (NXI) configurations are available.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }VACON® NXP DC/DC ConverterMaximizes the energy yield in hybrid solutions and helps improve performance by bringing energy support close to the consumption.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }VACON® NXP Grid ConverterAir- and liquid-cooled drives specifically designed for energy storage and marine energy management applications.
Case studies
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Royal IHC Scheldt River pioneers new environmental standards in dredging with flexible MV drivesSee how Danfoss was able to provide a drive solution that could boost an inboard dredge pump and increase energy efficiency with a small footprint, minimum weight, and low volume - while being robust enough to withstand the harsh marine environment, with modular Medium Voltage Drives.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Shore power supply is a cost-effective solution for Maersk Supply Service’s parked vesselsThanks to shore power supply during parking, Maersk Supply Service can keep diesel exhaust pollution, noise nuisance and maintenance costs to a minimum.
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; } else if (isBigColumns) { } else { }Battery retrofit saves fuel and improves air qualityDenmark’s shortest ferry route is now a pioneer of battery power.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }38% fuel savings and emission reductions for CMAL ferriesCMAL ferries use 38% less fuel than conventional vessels and emissions are reduced by a similar amount.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Hybrid powertrain improves tugboat economy and maneuverabilityThe Telstar saves 20% on operating costs compared to traditional tugboats.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }VACON® drives power hybrid ferries 24/7Passenger ferries bridge Amsterdam’s IJ River, keeping the city connected around the clock. Hybrid propulsion powered by VACON® drives ensures 24/7 uptime, smaller generator size, better air quality, less noise and easy maneuverability of the vessels.