The Hywind Tampen project is now moving from Stord to the deep-water site at Dommersnes where the concrete slipforming of the spar-substructures will be finished.
Since the Troll A platform was delivered in 1995, this is the first concrete slipforming for an offshore project on the Norwegian continental shelf.
The transport of the 11 substructures from Aker Solutions’ yard in Stord, where the first 20 meters were installed, to the deep-water site in Dommersnes, where slipforming work would proceed to 107,5 meters, began this week.
Hywind Tampen is an 88 MW floating wind power project in the Norwegian North Sea that will provide electricity for the Snorre and Gullfaks offshore field operations. The world’s largest floating offshore wind farm, Hywind Tampen, will also be the first to fuel offshore oil and gas platforms. It’s also Equinor’s first floating wind project, and it’s the first time the company has used concrete technology in a wind project.
Manufacturing for this groundbreaking project will begin in 2021. The steel anchors are being welded together at Aker Solutions yard in Verdal while the foundations are being installed at Stord and Dommersnes. The turbine towers, nacelles, and blades will be manufactured in Europe and delivered to Wergelands’ Gulen site.
When the slipforming and mechanical completion work at Dommersnes is done, the substructures will be towed to Gulen.
In 2022, all of the elements will be gathered at the Gulen site, and assembly work will begin with what is likely Norway’s largest onshore crane.
“The project represents a direct transfer of technology from oil- and gas to renewable. The giant Troll A substructure was 369 meters. Now we are building 11 small Trolls. The project is on schedule despite the challenges around covid-19.”
“We plan to start towing the completed wind turbines to Tampen early summer of 2022 and complete the offshore work by the end of the year. This is a large and complex industrial project where we use our experience from oil and gas projects.”Olav-Bernt Haga, Equinor’s project director for Hywind Tampen.