2025's most-read stories in Marine Propulsion & Auxiliary Machinery

With looming regulations to consider, Marine Propulsion & Auxiliary Machinery readers have avidly followed emerging fuels and engine technologies. Some of the most-read stories in 2025 featured major regulatory developments and debates on the role of LNG in a net-zero emissions future.

To read each story in full, click on the headline, the image or the link at the end of the text.

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1. WinGD CEO: ‘We may have all bet on the wrong horse’

WinGD chief executive, Dominik Schneiter, expressed serious doubts over the draft International Maritime Organization (IMO) Net Zero Framework, warning that with present regulations, LNG could remain the default fuel – potentially locking in fossil-fuel reliance to 2040 and undermining investments into ammonia and methanol technology. 

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2. IMO climate rules challenge LNG fuel assumptions

The recent package of regulations approved by IMO’s 83rd environmental committee session introduced a global fuel-intensity standard and stricter emissions oversight, triggering renewed scrutiny over LNG’s status as a transitional fuel. Many existing LNG vessels may struggle to comply under the new rules, especially if methane slip is not addressed effectively. 

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3. Sailing into history: ammonia engines to hit the water in 2025

After years of development, the first marine engines capable of running on ammonia are expected to be delivered in 2025, marking a pivotal step toward zero-carbon shipping. The technology – developed by WinGD – could see service on gas carriers, bulkers and tankers, reflecting rising industry appetite for green fuel alternatives. 

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4. These shipyards drive China’s dominance in the global shipbuilding industry

A small number of Chinese yards – both state-owned and private – continue to anchor China’s leading position in global vessel construction, supplying the bulk of newbuilds across tanker, bulker, LNG carrier and future-fuel-ready segments. Their capacity and scale remain central to fleet renewal trends worldwide. 

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5. Volkswagen’s largest shareholder said to be considering investment in Everllence

According to industry sources, the largest shareholder in Volkswagen Group is reportedly evaluating a strategic investment in Everllence – the marine-engine company behind a prototype two-stroke ammonia-dual-fuel engine, the 7S60ME-LGIA Mk 10.5. Such backing could accelerate the rollout of zero-carbon engine technology for the global fleet. 

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