Demand for liquefied natural gas as a marine fuel will at least double by 2030 as abundant supply and rising emissions regulations spur orders for ships that can run on it, industry executives said.
Massive LNG export projects in the US and Qatar are expected to cause a supply glut by 2030, reducing prices and improving its competitiveness against conventional fuel oil.
LNG is pulling ahead of other fuels in “decarbonising” shipping, which accounts for nearly three per cent of emissions, as supply and infrastructure hurdles cloud the outlook for so-called cleaner alternatives methanol and ammonia.
"Owners ultimately will choose the fuel that gives you the lowest cost," said Tuomas Maljanen, associate director for LNG and new energy at shipbroker Fearnleys.
"LNG is great because the infrastructure is there. It's readily available...maybe later on it's going to be, hopefully, quite cheap as well," he added.
Singapore, the top bunkering hub, led global LNG bunkering activity in the third quarter, followed by China and the Netherlands, according to consultancy Rystad Energy, and it plans to issue additional bunker supply licences.
Global LNG bunkering volumes could surpass four million tons by end-2025 and double by 2030, said Jo Friedmann, senior vice president of supply chain research at Rystad Energy.
French energy major TotalEnergies expects global LNG and bio-LNG bunker demand to surge to 15 million tons by 2030.
Some 781 dual-fuelled ships can now use LNG, according to ship certifier DNV.
"Based on today's orderbook, the number of vessels will be 1,417 by 2030, but we expect this to increase as new orders are confirmed," said Kristian Hammer, product manager AFI senior consultant at DNV.
Refuelling with LNG reduces local emissions from fuel oil by 19 per cent on a "well-to-wake" basis, which refers to emissions from extraction to usage, according to Mitsui OSK Lines, which owns the second largest shipping fleet.
It operates 15 LNG dual-fuelled vessels and has an additional 42 on order.
"Until zero or near-zero fuels are widely available, LNG remains a realistic decarbonisation option for shipping in terms of availability, cost-effectiveness, and safety," the company said.
Danish shipping giant Maersk, which until last year focused only on “green methanol” as an alternative fuel, has ordered 20 LNG dual-fuelled container ships for delivery between 2028 and 2030.
TotalEnergies expects LNG to outpace other alternative bunker fuels methanol and ammonia after 2030.
"Renewable methanol and ammonia production remain in their infancy, with limited bunkering infrastructure and a lack of economic competitiveness against conventional fuels that need to be addressed before scalable adoption is possible," it said.
Europe's FuelEU regulation, which took effect this year, limits fuel carbon intensity for ships calling on ports there and is expected to drive adoption of LNG bunkering.
This month, an International Maritime Organisation committee will vote on a rule drafted in April that imposes emissions fees on ships that breach it and rewards vessels burning cleaner fuels from 2028. However, the US rejected the deal and a group of top shipping companies are demanding changes.
"Until the IMO regulations take effect, LNG-bunkering activity remains highly sensitive to LNG bunker prices, especially for vessels operating on non-EU routes," said Rystad's Friedmann.
LNG bunker prices were on average $247 per tonne higher than marine fuel in the first nine months of this year, SP Global data showed, though excess LNG supply set to come online towards the end of the decade is widely expected to pressure prices.
(Reporting by Jeslyn Lerh and Florence Tan; Editing by Tony Munroe and Jason Neely)