Feature 5 | JACK-UP RIGS
GustoMSC wows market with wind turbine installation design
With three units under construction Dutch jack-up design specialist GustoMSC has set the standard for wind turbine installation units. Te development of wind farms promoting renewable energy has prompted this latest surge in orders. GustoMSC’s Gerrit Jan Schepman investigates.
Windcarrier at Lamprell Shipyard Ltd in Dubai for a scheduled delivery date of mid-2012. Lamprell yard also recently built the Seajacks Kraken and Leviathan to a NG-2500X design, both will be operating in Wind Turbine installation projects. Drydocks World South East Asia (DDWSEA) started the construction of the first NG-9000C in December 2009 for delivery in early 2012. DDWSEA also recently built four SEA2000 units of which three are active in wind turbine installation projects. Since the surge of offshore wind
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farm development in recent years many countries have taken initiatives to promote renewable energy – and a substantial component of this is the support of investment in wind farms. Most of the investment is related to developments in Europe, China and the USA. Focusing on Europe, the major
challenge has been set by the UK, with their massive Round-3 programme to
TECHNICAL PARTICULARS
NG-9000C
Length, oa ............................................130m Beam, mld ..............................................39m Height .......................................................9m Power ............4 x generator sets of 4300kW ....................... 1 x emergency set of 600kW Thrusters .................. 3 x 3500kW azimuthing 3 x emergency set of 600kW
Accommodation ...............................90POB Variable load .............................6500tonnes Crane
.........................................GLC-800-ED Main hoist ........................800tonnes at 24m Whip hoist ..........................50tonnes at 90m
wo NG-9000C wind turbine installation units were ordered in February 2010 by Fred. Olsen
Graphic of NG-9000C wind turbine installation vessel currently under construction at Drydocks World South East Asia (Credit: Drydocks World South East Asia/GustoMSC).
install more than 32GW. Translated into numbers this means more than 6000 wind turbines, approximately 100 central transformer platforms and transmission cables to shore. All this will be done ‘faster, cheaper and safer’ in water depths of up to 70m. To achieve this objective the complete
supply chain will be involved. GustoMSC, with its experience in jack-up vessel design can bring to the table its experience in design and knowledge of installation methods. In short the requirements for the
wind turbine installation units can be highlighted as:
• Installation objective for either foundation or tower/nacelle 1 – 2 days;
nacelle and hub plus rotors;
• Positioning preferred on DP, no mooring lines; and
Offshore Marine Technology 2nd Quarter 2010
• Logistics with sailing speed and variable load.
• Efficient installation sequence for foundation, transition piece, tower,
GustoMSC has lengthy experience in
the design of wind turbine installation units. The majority of units presently acting in this market have ‘roots’ in GustoMSC designs. Some references worthy of mention include the Sea Worker, JB-115, JB-114, Seajacks Kraken and Leviathan, MPI Resolution, Vagant, Buzzard, Wind Liſt 1, Stanislav Yudin and Svanen. Te latest additions to the fleet are the
first of the successful NG series. Te NG series are GustoMSC proprietary designs characterised as four-legged units with dynamic positioning 2 (DP2), high jacking speeds, efficient cranes and large variable load and deck space. Seajacks Kraken and Seajacks Leviathan
(NG-2500X class) are active in the Greater Gabbard field. Te Wind Liſt 1 (NG-5300 class) is working on the BARD Offshore 1 project. Te MPI Adventure and MPI Discovery (NG-7500/6 class) are under construction at the Cosco Nantong Shipyards in China for delivery in 2011.
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