HEAVY LIFTING Ӏ SECTOR REPORT
j only ten years: units of three to six megawatts were normal. We have now erected prototypes at 14MW, with plans to erect and test prototypes in the 16MW- 20MW range, which will likely be commonplace by 2030. Three or four years ago the monopiles were 1,000 t or so maximum and they couldn’t get any bigger; then they made an XL monopile; now we have XXL monopiles of up to 2,100 t and they are talking of XXXL monopiles of 3,000 t and up. "There are more (offshore) decommissioning than new installations in oil and gas," adds Kerr. "Offshore investment has shifted from fossil to renewable. The energy transition is really in front of us because a lot of the work at the traditional offshore yards is now renewables-based. What used to be oil and gas platforms are now substation topsides for offshore wind generation. We have loaded out several examples of these over 1,000 t recently, and three of our PTC cranes are now working on offshore wind projects." "So every time that you think
you are coming to the limits of what is possible the technology just continues to find efficiencies. And especially when it comes to these energy projects, getting sustainable energy and lowering its cost is all about economies of scale in the end, and that is certainly the case with offshore wind. I think the entire value chain needs to catch up a bit in that respect and invest in the future of that segment. "And that is something that we
are doing at Mammoet. We have recently started the engineering phase of our SK 6000 crane, which is our next big product. It will be the next evolution of the SK series and will deliver at least 40% additional lifting capacity on top of the SK 350 in common use case scenarios. f
20 CRANES TODAY
Huisman meets growing demand for heavy lifts
Ships and port operations are heavy-lift users. Netherlands-based company Huisman last year doubled the slew bearing production capacity of its facility in Schiedam, The Netherlands, in order to meet the growing demand for this key component of its heavy lift cranes. These cranes, mounted on docksides or as shown here on vessels, have capacities of up to 1,500m and can lift such loads at 25m radius. The ballast-free electrically-driven cranes have small footprints for their capacity, very small tail swing, and vertical boom storage. When equipped with a super fly-jib they can enable their vessel to perform offshore installation projects, such as of wind monopiles. Huisman has built 100 mast cranes to date. The first one of its kind, built in 1984, is still performing excellently today.
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