Siemens writes: "The self-lifting installation vessel which is 132 meters in length and 39 meters across the beam can transport and install foundations, towers, nacelles and rotor blades for up to 10 wind turbines. For its maiden deployment the vessel is loaded in the Danish port of Esbjerg with components for two units of Siemens' new 6 MW offshore wind turbines."
For more details, check out:
-Fact sheet on the Sea Installer.
-Fact sheet on the new SWT-6.0 offshore wind turbine.