SUSTAINABLE SYNERGY FOR FRISIAN FERRIES

Like Damen, with its ambitions to be the world’s most sustainable shipbuilder, German ferry operator Reederei Norden-Frisia has a vision for a green future.

The company, which operates services from the mainland of north-west Germany to the Frisian Islands, is taking a very active approach to realising its ambitions.

Already, the operator offers electric car and bicycle hire to its clients. Furthermore, Norden-Frisia is installing solar panels and wind turbines to its car parking facilities to generate a significant 5MW of electricity.

The power generated will be used to support Frisia’s latest initiative in sustainability, as Norden-Frisia Marine Superintendent Michael Garrelts explains:

“We’ve taken some good steps towards increasing sustainability on land. Around two years ago we decided it was time to take a look at our fleet.”

Before taking steps to future-proof its fleet, Frisia first undertook some research. What the company found was that there were numerous passengers who would welcome a faster service to the islands.

“We saw that there were a lot of people who were arriving at the terminal by train, or were car sharing,” says Michael. “We wanted to offer those people who were not dependent on transporting a vehicle the choice to take a faster ferry.

“We were aware there was demand for this. We’ve already had some experience with serving these sorts of passengers.

For a while, we’ve operated a number of conventional propulsion water taxis to the island of Juist. These cater for people who just want to get to the island as quickly as possible.”

So the company decided it was time for the next step with the construction of a fully electric vessel to transport 150 passengers at a time from Norddeich to the island of Norderney, quickly, cleanly and in comfort.

The challenges included where to build such a vessel. In 150 years of operation, Reederei Norden-Frisia has never built a vessel outside of Germany. When the company began to explore its options, a strong contender emerged.

“Damen had the track record we were looking for. They had already built a number of fully electric vessels, some of which have already proven their reliability in operation.”

Among the fully electric vessels that Damen has delivered are a series of five ferries operating in the city of Copenhagen, Denmark.

Additionally, the shipbuilder has been behind the construction of a fully electric harbour tug, the RSD-E Tug 2513, operating for Ports of Auckland in New Zealand.

After Reederei Norden-Frisia had reached out to Damen it became apparent that the shipbuilder may be able to assist with more than just the design and construction of a vessel.

“Initially, we only had the vessel in mind, but later on we saw that Damen was able to help us with the charging infrastructure and mooring solutions, just as they had with their earlier projects. With this, we currently have three projects underway, all in one place. It’s a very convenient and efficient process.”

Damen’s aim was not only to deliver efficient and sustainable ships to its clients, but also take on an integrator role, looking after the entire process – in this case including electrical infrastructure – often for the entire lifecycle of the vessel.

The route that the ferry will operate required Damen to develop a completely new vessel – the Damen Fast Fery (FFE) 3209 – known as the E-Cat Ferry.

The need for a customised vessel has led to a strong spirit of collaboration between Damen and its client, who have worked together in the development of an appropriate vessel.

“Damen have really thought along with us,” states Michael. “For example, we initially wanted to integrate water jets to the vessel. “However, Damen pointed out that using fixed pitch propellers would offer greater efficiency.”

Additionally, the Wadden Sea, in which the Frisian islands are located, is a protected UNESCO World Heritage site. This imposes a number of strict criteria on vessels operating in the waters, one of which is a speed restriction.

“Obviously, one of our goals with this service was to offer people an express service to the island. However, there is a speed limit in place. A vessel operating on this route must not exceed 16 knots.”

Even with this restriction in place, the E-Cat Ferry cuts the transit time to Norderney in half – to just an hour. Charging, which takes place in just 30 minutes, can be done while passengers are embarking and disembarking.