Hafnia explores installation of WAPS on upcoming methanol dual-fuel vessels

Singapore-based tanker company Hafnia is exploring the installation of wind-assisted propulsion systems (WAPS) on its upcoming methanol dual-fuel ships to improve fuel efficiency.

PHOTO: Hafnia's medium-range tanker Hafnia Languedoc. Hafnia

The first, in a series of four 49,800-dwt medium-range chemical tankers that can run on methanol and conventional marine fuels, is set for delivery next month, following the successful completion of sea trials, Hafnia said.

Hafnia, a subsidiary of the BW Group, and French shipowner Socatra jointly ordered these four vessels from China’s Guangzhou Shipyard International in August 2023.

Hafnia is currently “evaluating new concepts to boost the vessels’ environmental footprint" such as WAPS, it said.

These vessels will be equipped for future shore power connection and have spaces allocated for rotor sails.

A rotor sail is a modernised form of Flettner rotor based on the Magnus effect, which creates air pressure to cause spinning. Under favourable wind conditions, the rotor sails will enable the vessel's main engine to throttle back and consume less fuel while providing enough power to maintain speed.

The four newbuilds will be time-chartered to TotalEnergies for a multi-year period, Hafnia said. Two more vessels are scheduled to be delivered later next year, and the final one in 2026.

By Aparupa Mazumder

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