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WAVE ENERGY OFFERS DECARBONISATION POSSIBILITIES

Thursday, April 23, 2020  (Comments: 1)

Norwegian company Wavefoil has fitted its device, a retractable bow foil which is said to provide propulsive power from renewable sources as well as improve ride comfort and seakeeping, to a ferry in the Faroe Islands.

The Trondheim-based company's foils are designed to convert wave energy directly into propulsive thrust. Since the product's first installation in September 2019, the ferry Teistin has operated between Gamlarætt, Skopun and Hestur in the Faroes, with estimated reduction in fuel consumption of around 10% as well as reducing motion in the heavy seas typically encountered in this area of the North Atlantic Ocean.

Wavefoil CEO Eirik Bøckmann said: "Our foil modules are suitable for ships shorter than about 200m, sailing in wave-rich areas. We estimate that the foils may reduce the fuel consumption of Teistin by 10%. We could not have wished for a more suitable ship for our first installation than Teistin. She sails a very exposed route and we see that the foils are used virtually all the time”. He added that the foils are suitable for installation on newbuilds as well as retrofit projects.

Ferry captain Jónleif Láberg said: "I feel that Teistin moves less in the waves than before."

Wavefoil received development funding from NTNU Discovery, the Research Council of Norway, Innovation Norway and Climate-KIC, as well as private capital. The effect of the foils has been investigated through model tests and simulations.

"The potential is large – if all suitable ships installed our foil modules, we estimate a reduction in CO2 equivalents of 10-20 million tons," said Bøckmann.

Audun Yrke, Technical Manager, Wavefoil said: "With the installation on Teistin we first and foremost intend to demonstrate that the retraction mechanism is dependable, and that the system is easy to use for the crew. So far it appears that we have succeeded in doing so."

Wavefoil's foil modules are being fitted to a new ambulance vessel for western Finnmark, due for delivery from the Maritime Partner yard in Ålesund in summer 2020.

"With the successful demonstration in the Faroe Islands we are positioned where we should be to supply a growing demand for our foil modules. Now we are ready to take on the market," said Bøckmann.

Reader Comments (1)

How does this work? Is sea induced movement of the foil converted to electrical energy? or does the foil keep the bow down to preserve the design hull form and so minimise hull resistance? I am an interested retiree.

By Peter Hoskin on Tuesday, April 28, 2020

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