Danish shipping company Maersk has completed the conversion of a large container vessel, Maersk Halifax, to a dual-fuel methanol engine.

The retrofit was carried out at Zhoushan Xinya Shipyard in China and took 88 days, concluding at the end of October this year.

The ship departed from the yard’s anchorage on 4 November 2024.

MAN Energy Solutions spearheaded the engine conversion, which involved replacing machine parts to enable methanol operation.

The retrofit also included the installation of new fuel tanks, a fuel preparation room, and a fuel supply system.

Additionally, the ship’s hull was expanded to fit the new fuel tanks, extending the vessel’s length by 15m to a total of 368m.

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This expansion has increased the capacity of the Maersk Halifax from approximately 15,000 TEU to 15,690 TEU.

Maersk fleet management and technology head Leonardo Sonzio said: “We are happy to announce that Maersk Halifax successfully has been retrofitted into a dual-fuel methanol vessel. Following the completion of the sea-trials, Maersk Halifax has returned to operation and is now servicing our customers on the Trans-Pacific trade.

“Since we set the ambitious climate goal of reaching net zero emissions by 2040, we have explored the potential in retrofitting existing vessels with dual-fuel engines. In the coming year, we will take learnings from this first conversion of a large vessel.”

The Maersk Halifax is part of Maersk’s Hong Kong-class fleet, which consists of 11 vessels.

Recently, Maersk Tankers ordered bound4Blue’s wind-assisted propulsion systems (WAPS) for five of its vessels.

The agreement marks bound4blue’s largest WAPS deal to date, involving the installation of 20 type-approved eSAIL suction sails on five MR tankers during dry dock periods in 2025 and 2026.