GustoMSC and also NOV Lifting & & Handling stated Tuesday they had actually established an option to enhance offshore wind generator blade setup performance.
“Blades are highly susceptible to wind loads, so they currently take the most time to install,” the firms stated.
The service has actually been called Sj øhest – Norwegian for “seahorse.”
“Like the seahorse’s one-of-a-kind and also solid realizing tail allows it to stand up to sea currents, the Sj øhest attaches to the tower, producing a lined up motion for secure and also reliable blade setup,” the companies added.
The Sjøhest Wind Blade Installation (WBI) solution consists of a dedicated new-build NG-5500XL, or a smaller converted jack-up vessel, equipped with a smaller handling crane that picks up the blades from the rack and feeds the trolley. As a telescopic leader boom connects Sjøhest with the already installed tower, the leader boom connection aligns with the tower’s movements.
This, according to the developers, creates an aligned movement between the blade and the tower. Once connected to the trolley, the blade is horizontally transported up along the leader, rotated into a vertical position, and connected to the rotor.
“Major time financial savings”
“Large setup jack-up vessels have reasonably high day prices; as a result, raised setup time or downtime is expensive and also requires to be stayed clear of as long as feasible. Sj øhest uses a different setup method whereby the bigger setup jack-up vessels furnished with hefty lift cranes set up the towers and also nacelles, while the specialized Sj øhest WBI jack-up vessel with incorporated devices sets up the blades. The setup method with Sj øhest makes sure significant time financial savings as all 3 blades per wind turbine can be mounted in someday,” the companies said. In addition, the companies said, the installation methodology with Sjøhest enables splitting tower/nacelle and blade mobilization into separate onshore hubs.
“Due to their dimension, existing and also future blades produce a massive need for room. Furthermore, quayside blade lots are much much less than towers and also nacelles. The mobilization split produces far more adaptability in the mobilization place and also advantages the whole logistics procedure,” the firms included.
