LEIDEN, the Netherlands – Heerema’s semisubmersible crane vessel Sleipnir has installed the six-legged, 2,858-metric ton (3,150-ton), and 46-m (151-ft) tall jacket for the Hollandse Kust Zuid (HKZ) transformer station in the Dutch North Sea.
The Sleipnir picked up the Alpha jacket in Vats, Norway, on Sept. 2 before sailing to the HKZ wind farm location around 23 km (14 mi) from Scheveningen, the Netherlands. The installation was completed on Sept. 9.
This is the Sleipnir’s first offshore wind project.
Heerema secured the contract with the jacket and topsides main contractor, Petrofac. While the HKZ wind farm developer is Vattenfall, and the transformer station is owned by the Dutch grid provider TenneT.
According to the company, the vessel performed the full installation operations while running on emission-reducing LNG fuel. Using LNG, the Sleipnir reduces CO2 emissions by 25%, NOx emissions by 92%, SOx emissions by 99%, and Particulate Matters by around 99% compared to traditional Marine Gas Oil crane vessels.