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Everllence Supplies Ammonia Dual-Fuel Engines for Höegh Autoliners

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Key Takeaways

  • Höegh Autoliners' Aurora-class vessels will feature ammonia-capable dual-fuel engines, advancing maritime decarbonization and zero-carbon fuel operations by 2027.
  • Everllence's ammonia engines are part of a global initiative to establish ammonia as a major alternative fuel, alongside methanol and methane.
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Four Aurora-class pure car/truck carriers will use ammonia-fired engines to achieve zero-carbon, sustainable, and environmentally friendly deep-sea transportation.

Höegh Autoliners ordered four Everllence (formerly MAN Energy Solutions) B&W ME-LGIA dual-fuel engines, with ammonia-burning capabilities, for the construction of four Aurora-class pure car/truck carriers (PCTCs) at an Asian shipyard. Each PCTC features a 9,100-CEU capacity and will operate under the Leif Höegh & Co. shipping company. HD Hyundai Heavy Industries Co. will assemble the 7S60ME-LGIA engines in South Korea.

"The engines are the heart of our vessels, and we take it as a clear mark of confidence that Everllence has chosen us to install some of the world’s first two-stroke ammonia engines on our final four Aurora-Class vessels,” said Sebjørn Dahl, Chief Operations Officer, Höegh Autoliners. “With nearly 100 years of industry experience, Höegh Autoliners is proud to be among the first companies selected to pioneer this transition together with Everllence. Reaching zero is a shared ambition, and Everllence plays a role in helping us realize our goal of operating our large PCTC vessels on zero-carbon fuels from 2027."

To Everllence, this order represents a significant move toward maritime decarbonization and clean propulsion in the global shipping industry, as the Aurora-class vessels will be the largest and most environmentally friendly PCTCs on the market.

“This order—one of several ammonia pilot-projects we have in China, Japan, and South Korea—gives us encouragement that we are on the right path, as does the widespread industry interest in our progress,” said Bjarne Foldager, Head of Two-Stroke Business, Everllence. “We have adopted a responsible, safety-first approach to developing this engine on account of ammonia’s particular risk-profile and are confident that ammonia will ultimately become one of three major alternative fuels in the market, along with methanol and methane.”

Höegh Autoliners will leverage these ammonia-fired engines to accelerate its decarbonization and sustainable, deep-sea transportation efforts. Det Norske Veritas granted ammonia- and methanol-ready notations for Aurora ships, which will be the first to operate zero-carbon ammonia propulsion with Everllence’s main engine.

Aurora-class pure car/truck carrier | Image Credit: Hoegh Autoliners

Aurora-class pure car/truck carrier | Image Credit: Hoegh Autoliners

“We have now been running our two-stroke ammonia test engine since 2023 and can confirm that the ME-LGIA’s combustion is right where we want it,” said Christian Ludwig, Head of Two-Stroke Sales and Promotion, Everllence. “Using the diesel principle, the ME-LGIA engine concept has many of the same merits as our existing dual-fuel engines that already entered operation over a decade ago. Inspired by these engines, we are using the same sealing-oil design for the fuel-booster injection valves as this has proven to be important and efficient. By end-2026, we expect to have a small number of demonstration projects on the water to enable a commercial market introduction of the G50-, S60-, G60-, G70- and G80-bore ME-LGIA engines.”

175D for Indian Coast Guard

This week, Everllence agreed to deliver 14 x 3 x 16V175D-MM high-speed engines to Mazagon Dock Shipbuilders in Mumbai, India, which is building 14 fast patrols vessels for the Indian Coast Guard. Each engine generates 2,960 kW, with the entire order scheduled for delivery between December 2025 – December 2027.

The 175D engine is available in multiple cylinder variants—12, 16, and 20—with outputs ranging from 1,500 – 4,400 kW. It is suited for powering ferries, offshore support ships, tugs, and additional working vessels and other market areas, including superyachts, planning yachts, and naval marine applications, are served by other engine variants. Everllence’s design is also eco-friendly, operating with low fuel-consumption and compliance to the latest exhaust-gas emission standards. The engine is compatible with future-fuel requirements with biofuels clearances on FAME and HVO.

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