All Moray West Transition Pieces Installed Offshore Scotland

May 28, 2024, by Adnan Memija

All transition pieces (TPs) have been installed at the 882 MW Moray West offshore wind farm in Scotland, according to a Notice to Mariners issued on 27 May by Moray Offshore Windfarm (West). In addition, Cadeler’s Wind Orca has installed ten wind turbines so far at the offshore site in the Moray Firth.

The final TP, manufactured by UAE-based Lamprell, was installed by DEME Group’s installation vessel Apollo on 27 May at the site approximately 22.5 kilometres from the Caithness coastline.

According to the latest Notice to Mariners, the vessel will revisit previously installed TPs at locations H08, J09, J10, and L12 to complete the grouting scope on these locations.

DEME won the contract for the installation of monopile foundations and transition pieces at Moray West in 2022. The company’s scope of work also includes the bolting and grouting of the monopile/transition piece connections.

The TPs were delivered by Lamprell under a contract signed with the project’s developer Ocean Winds in 2022. Under the contract, the company was responsible for the construction of 60 wind turbine TPs and two offshore substation TPs.

The units were placed on top of monopiles delivered by Dajin Heavy Industry and the Navantia Seanergies and Windar Renovables consortium.

Moray West Offshore Wind Farm Taking Shape

According to the latest Notice to Mariners, Cadeler’s jack-up vessel Wind Orca has installed 10 out of 60 Siemens Gamesa’s SG 14-222 DD wind turbines. The vessel is supported by the service offshore vessel (SOV) Norwind Breeze and two crew transfer vessels (CTVs) Fob Swath 3 and Fob Swath 5.

Supplied with “Power Boost”, each turbine can generate up to 14.7 MW output. The pre-assembly activity of the 60 turbines is being managed by Siemens Gamesa, Siemens Energy’s wind business, who are also manufacturing all the 180 B108 blades for the project at their quayside factory in Hull.

Siemens Gamesa is marshalling all turbine components at Port of Nigg from where the Cadeler heavy lift vessel Wind Orca is undertaking the installations.

The first unit was installed in April and the wind turbine installation campaign is expected to last approximately six to nine months.