Successful trials for Sea Installer

Denmark based A2SEA’s new second generation installation vessel Sea Installer successfully installed two Siemens 6MW test turbines last month at the Gunfleet Sands windfarm off the Essex UK coast in the North Thames Estuary.

Sea Installer’s next assignment will be installing turbines at Anholt Offshore Wind Farm off Denmark

It is the first installation for the Sea Installer and it is the first time ever that Siemens 6MW turbines have been installed offshore.

“The installation of the two 6MW turbines is a step into the future of offshore wind, said Jens Frederik Hansen, CEO at A2SEA A/S. “The turbines are getting bigger, and the future sites are further out to sea. This calls for more flexible vessels such as our new Sea Installer. We are proud of being part of installing the first turbines of the future of offshore wind and very satisfied with the outstanding performance of both the crew onboard the vessel and the installation crew from Siemens.

“Sea Installer showed already on the first test, that some of the advantages built into this second generation vessel worked as expected. The first positioning of the vessel was done with an accuracy of an incredible 3cm and after a penetration of the legs with large spud cans many meters into the seabed they were efficiently and fast retracted from the seabed with the purpose build water injection system.”

Sea Installer’s next assignment will be installing turbines at Anholt Offshore Wind Farm. Following that, it will sail to the Irish Sea and install some of the foundations and transition pieces and all the turbines at the 108 turbine project West of Duddon Sands, aproject expected to stretch from April 2013 to mid-2014).

Technical specification:

Length: 132m

Beam: 39m

Draft: 5.3m

Power: Six 3,020kW main engines

Service speed: 12 knots