Minimum Total Harmonic Distortion on board Scandlines New Hybrid Ferries Berlin & Copenhagen - Case Study

In 2016, Scandlines inaugurated two new hybrid ferries for the Rostock-Gedser route. In order to improve the power quality, Scandlines installed active filters on board M/V Berlin and M/V Copenhagen.

Before commissioning, Scandlines’ new hybrid ferries had a power quality of THDV 15%. In order for the ferries to go into operation, the power quality had to be reduced to below 8 percent THDV (Total Harmonic Distortion Voltage).

By installing Schneider Electric Accusine (OptiPower), Scandlines achieved a power quality below 3 percent resulting in minimum THDV (Total Harmonic Distortion Voltage).

Superintendent Christian Thiemer at Scandlines says: “We are very satisfied with the installation of OptiPower on board our two new hybrid ferries.

We always aim for energy efficient solutions which not only have a low impact on the environment, but at the same time reduce costs.

After the installation of OptiPower and the active filters, we have removed a total load of 400A on the generators which results in a total saving of 170-200 kW on each ferry".

DESMI has managed the entire project from dimensioning to design and installation and the complete installation has taken approx. 5-8 days.

Facts about the Scandlines Hybrid Ferries Berlin & Copenhagen

Scandlines’ hybrid ferries combine traditional diesel power with electrical battery power. M/V Berlin and M/V Copenhagen operate the Rostock-Gedser route.

Number of passengers: 1,300
Number of cars: 460 or 96 trucks

Length: 169.5 m
Width: 25.4 m
Speed: 21 knot