Presentation Logistic solutions for the installation of offshore wind farms Captain / Graduate Economist Andreas Wulf
Agenda - German Offshore Projects - Situation today - Transportations - Installations - Lookout
- Transportations - For transportation of offshore construction pieces usually North Sea Standard Barges (90 m x 30 m x 6 m [L x B x H]) will be used, especially for foundation structures - For single segments smaller pontoons also be qualified (nacelles, tower sections etc.) - Paying attention of pontoon height is vital concerning the transshipment (RoRo vs. crane transshipment)
- Also so called wet towages, for example for offshore substations, possible - Pontoons will then only be used as supply equipment - For special operations submersible pontoons will be essential, advantage is that weight of components become lower the more pontoon will be sumbersed, i. e. crane capacity can also be lower money will be saved
- Impressions Unloading of a rotor blade
Unloading of a nacelle by SPMT
Unloading of a nacelle by SPMT, closer view
Loading of a nacelle by SPMT and floating crane
Loading of a nacelle, SPMT operation onshore
Loading of a nacelle, idea for the proportion
Loading of e-units for OSS BARD 1
Nacelle for offshore wind farm BARD Offshore 1
Kugelbake completely loaded with e-units and nacelles
Arrival of towage in Cuxhaven, barge is loaded with piles
Loading of tower sections in Bremen, first section already transshipped
Loading of tower sections in Bremen, 2nd one is on its way
Loading of tower sections in Bremen, 2nd successfully transshipped
Loading of piles by floating crane Samson (capacity of up to 900 t)
Loading of piles by floating crane Samson, in the background you ll see the seafastening installed on the barge
Transportation of piles by Wulf 7 and Boabarge 21 via Kiel Canal Source: by Tony Zech
- Installations - For installation of offshore wind farms, i. e. offshore wind turbine generators as well as substations etc., jack-up barges respectively floating cranes are compulsory - Installation units need to have high crane capacities to enable the transshipment and installation at site - Due to high water depths in the North Sea the legs have to be long enough, soil conditions etc. has to be considered
- Impressions Transportation and afterwards installation of an offshore substation Source: by EnBW
HLV RAMBIZ in Cuxhaven, capacity is up to 3,200 t
Skidding operation in Klaipeda, OSS BARD 1 will be skidded on the barge T.O.W. III
Due to a rail system, OSS will be transshipped to the barge
This picture interferes a good feeling for the proportion of the OSS
Mission successfully accomplished
Loading of a tripile in Cuxhaven by gantry crane of CSC (subsidiary of BARD)
Another two tripiles successfully transshipped for the offshore wind farm BARD Offshore 1
OSS BARD 1 in foggy weather, in the background you ll see an installation unit
OSS BARD 1 in sunny weather, helicopters are transferring the crew for maintenance
Tripiles offshore are waiting for their installation
Jack-up barge THOR is also used for the installation of offshore wind components in the offshore wind farm BARD Offshore 1
Before tripiles can be installed, piles will be picked up and rammed into seabed
Piles will be inserted in a mounting frame
After ramming the piles, tripiles will be provided
Installation unit WIND LIFT I is lifting the tripiles
Crane of WIND LIFT I is going to install the tripile
- Foundations Table Installed foundations/dimensions Source: OFFSHORE Windenergy, The magazine of the Wind Energy Agency WAB, Issue 2011 /2012
- Jack-up units Table Lifting platforms in use in the offshore wind industry Source: OFFSHORE Windenergy, The magazine of the Wind Energy Agency WAB, Issue 2011 /2012
- Floating cranes/heavy-duty ships Floating cranes/heavy-duty ships in use in the offshore wind industry Source: OFFSHORE Windenergy, The magazine of the Wind Energy Agency WAB, Issue 2011 /2012
- Offshore wind turbines Table Offshore wind turbines IN USE (November 2011) Source: OFFSHORE Windenergy, The magazine of the Wind Energy Agency WAB, Issue 2011 /2012
Lookout - Jack-up units Table Offshore wind energy installation devices in planning Source: OFFSHORE Windenergy, The magazine of the Wind Energy Agency WAB, Issue 2011 /2012
Lookout - Offshore wind turbines Table Offshore wind turbines ANNOUNCED Source: OFFSHORE Windenergy, The magazine of the Wind Energy Agency WAB, Issue 2011 /2012
Thank you very much for your attention!