A REPORT by
the Organisation
for Economic Co-operation and Development (OECD) has said that more
than half of the fuel savings generated from larger ships were due to design
changes for slower speeds.
It suggested
fuel savings among mega-boxships come more from slow-steaming and less from its
larger vessel size, said Vancouver's Ship & Bunker.
Carrier lines
making orders for larger ships to cut down on per-unit costs have long touted
the fuel efficiency of using larger containerships, reported Reuters.
Between 55 and 63 per
cent (at least) of the savings per TEU when upgrading the vessel size from an
early 15,000 TEU design to a modern 19,000 TEU design are actually attributable
to the layout for lower operation speeds.
Newbuilds
these days are increasingly having slow-steaming built into the ship design,
which make the difference for ships beyond a certain size.
"Cost
savings are decreasing as ships become bigger," the OECD said.
"A large
share of the cost savings were achieved by ship upsizing to 5,000 TEU, which
more than halved the unit costs per TEU, but the cost savings beyond that
capacity are much smaller."
Nevertheless,
the organisation said that mega-containerships were "astonishingly fuel
efficient," generating more fuel savings than even a 16,000 TEU
carrier.
Meanwhile,
the upgrade to larger ship size is also increasing landside costs by up to US$400
million per year, with factors such as new equipment, dredging costs
and port infrastructure having been taken into consideration.
Earlier this
year, a unit of the OECD also clashed with the World Shipping Council (WSC)
over differing opinions of mega-containerships.
Source :
HKSG.
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