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Viewpoint: Rising tonne-miles to help VLGC rates

  • : LPG
  • 22/12/20

The large number of newbuilds to be delivered in 2023 is likely to weigh on very large gas carrier (VLGC) freight rates, but higher tonne-miles on the back of new environmental regulations and Panama Canal delays could offset increased tanker supply.

The global VLGC fleet is scheduled to grow by around 13pc — or 47 newbuilds — to approximately 379 vessels in 2023, which could weigh on freight rates, according to Oslo-listed shipowner Avance Gas. New York-listed shipowner Dorian LPG is anticipating 65 VLGC — equivalent to approximately 6mn m³ of carrying capacity — to be added to the global fleet by 2025.

With the large number of vessels expected to be delivered in 2023, market participants wonder if freight rates could fall like they did in 2015 and 2016, when 35 and 44 VLGC were added to the fleet, respectively. The bellwether Ras Tanura to Chiba rate peaked at $138/t on 15 July 2015 before finding the bottom of the market at $18.50 on 7 September 2016. The Houston-Chiba rate reached as high as $290/t in July 2015, but reached $43/t on 21 September 2016.

Approximately 15pc of the global VLGC fleet is 20 years old or older, and some of the tankers could be marked for scrapping next year. Meanwhile, tanker availability could tighten as the shipping market implement the International Maritime Organisation's (IMO) Energy Efficiency Existing Ship Index (EEXI) and Carbon Intensity Indicator (CII) regulations in 2023. The new rule will have the effect of reducing the global fleet's speed, which will resulting in longer voyages and ships being booked for longer periods.

The three of largest VLGC shipowners — Oslo-listed shipowner BW LPG, Avance Gas, and Dorian LPG — also cited Panama Canal delays as a major factor in the rise in fleet inefficiencies as it has been throughout 2022.

The route from the US to east Asia is a major contributor of VLGC tonne-miles, but the implementation of a new booking system for the Panama Canal at the start of 2021 meant VLGC's were no longer eligible for 'Period 1' slots to transit it. VLGCs can only apply for 'Period 2 or 3' transit slots, which can only be booked up to 21 days in advance of transit. Period 1 slots could be booked up to a year in advance. This led to an increase in delays for this class of ships and additional costs to bookings.

Panama Canal delays can have a profound impact on VLGC freight rates globally. In 2022, they prompted shipowners to take the longer route around the Cape of Good Hope, or through the Suez Canal instead of waiting outside the Panama Canal. A voyage from Houston to Chiba via the Panama Canal take around 25 days, but a trip via the Suez Canal or via the Cape of Good Hope takes around 40 and 43 days, respectively.

Waiting times for unbooked vessels transiting the Neopanamax Locks at the Panama Canal also rose in November 2022, as a result of a seasonal increase in LNG tanker and containership traffic. This typically occurs ahead of winter in the Northern hemisphere, but delays this year were more profound than usual. Northbound waiting times averaged nearly 20 days, while southbound delays averaged around 15.5 days in November, Panama Canal Authority (ACP) data show.

Argus Consulting expects LPG exports to reach 353.6mn t in 2023, up from 337.8mn t in 2022. US shipments could reach 61.3mn t in 2023, from 54.6mn t in 2022, but an Opec+ decision to reduce crude output quota could affect export growth from the Mideast Gulf.

On the demand side, Asia-Pacific imports could grow to 88.1mn t in 2023, from 80.8mn t in 2022, with several propane dehydrogenation (PDH) plants scheduled to start up in China. But Margin pressures for PHD operators in China in 2022 weighed on operating rates, consumption, and consequently on freight rates.


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