Marine Warranty Survey
for
Offshore Windfarms
Gabor Bohner
Head of Department
Marine Operations
www.gl-nobledenton.com
Germanischer Lloyd is a world-class technical service
provider for the Maritime and Energy markets
Germanischer Lloyd at a glance
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Long established, privately owned and profitable technical service provider
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Maritime Services
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>€800m revenues
6.800 employees
235 offices
80 countries
based in Hamburg
leading ship classification society
to ensure the safety of life and
property at sea
technical consultancy for shipping
and ship-building industries
Industrial Services
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technical assurance and
engineering consulting for
energy and process industries
GL Industrial Services growth
Since August 2007 there have been several
major acquisitions:
Advantica (United Kingdom)
PV Inspection (Canada)
Helimax (Canada)
Trident Consultants (Malaysia)
Material Consulting Services Inc. (USA)
IRS (Singapore)
Noble Denton (UK)
Garrad Hassan (UK)
GL Industrial Services now has a greatly expanded,
highly skilled and professional organisation with the
capability to deliver true value to customers
MWS Definition
Marine
+
Warranty
+
Survey
= Supervision of Offshore Operations
on behalf of the Client
according to the Insurer‘s
interests
© ELSAM A/S
MWS Contracts
Option 1
Owner
Operator
Direct Contract
Scope of Work
MWS Request
Marine
Warranty
Surveyor
Contractor
Option 2
Policy / Warranty Clause
Insurer
Underwriter
Indirect Contract
Scope of Work
Why MWS ?
Aim of the insurance companies → to avoid damages and losses
Small mistakes → Big damages
Failure Sources
• Improper Marine Units or Equipment used
• Not suitable Weather Conditions
• Human Errors
Supervisions of Offshore Operations
Certification Inspection:
• Quality aspects during transportation and
installation for the client.
• (Structural integrity, verticality, welds, etc.)
Marine Warranty Survey:
• Safety and technical aspects during
loadout, transportation installation and
cable laying for the insurer.
• (Marine spread, loose gears, tools and
equipments, operation procedures, jacking
/ anchoring, weather limitations etc.)
MWS Rules and Guidelines
• GL Noble Denton Guidelines for
Marine Warranty Survey
• GL Offshore Rules „Marine
Operations“
• GL Guidelines for Ocean Towage
• Rules and Guidelines of other
recognised societies
Network and Partners
Network and Partners
GLIS Network of Certified
Warranty Surveyors:
Frame Agreements:
GLIS has a network of own
certified Marine Warranty
Surveyors in following
country offices:
GLIS and Theta Norge AS
have entered into a strategic
alliance for provision of
specialised marine warranty
surveys and consultancy work.
United Kingdom, Germany,
Egypt, Russia, U.A.E., Qatar,
Iran, Malaysia
Person in Charge:
Captain C.K. Kohli, B.Sc.
Review and Approval of Documents
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Location Survey Analysis (Pile Driveability, Environmental Condition)
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Loadout Analysis (Lifting / Skidding, Rigging Design)
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Transportation Analysis (Seafastening, Stability, Bollard Pull)
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Lifting / Upending Analysis (Crane Capacity, Rigging Design)
• Installation Procedures (On-Bottom
Stability, Piling / Grouting, Mating)
• Anchor Handling (Anchor Pattern,
Mooring, Clearances)
• Laying Procedures (Start-Up, Laying,
Crossings, Laydown / Pull-In)
On Site Surveillance
• Vessel and Equipment aCondition Survey
• Loadouts (Quay, Cranes, Tugs and Barges,
Mooring, Ballasting)
• Towage (Winches, Hawser, Wire Protection and Control)
• Transportation (Seafastening, Routing, Weather)
• Lifting (Hoisting Equipment, Safety Factors, Clearance)
• Launching / Upending (Reserve Buoyancy, Bottom Clearance)
• Installation (Positioning, Level Survey, Piling / Grouting)
• Laying (Tensions, Ramp Leveling, Pull-In, Trenching)
Condition Survey Reports
for involved marine spread:
• Cargo Barges
• Cargo Vessels
• Crane Vessels
• Towing Vessels
• Anchor Handling Vessels
• Cable Laying Vessels
• Pipe Laying Vessels
• and for used equipment
Warranty Certificates of Approval
Normally the following warranty certificates will be issued by the
warranty surveyor:
• Certificate for Load Out
• Certificate for Seafastening
• Certificate for Transportation
• Certificate for Structure Installation
• Certificate for Cable / Pipe Laying
Excerpt of Project References
Major Offshore Wind MWS Projects
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2010 / 2011 – DONG – Walney 1+2 Offshore Windfarms, UK
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2009 / 2010 – EnBW – Baltic I Offshore Windfarm, DE
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2009 / 2010 – BARD – BARD Offshore1 Windfarm, DE
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2009 – Strorebaeltforbindelsen – Sprogoe Offshore Windfarm, DK
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2009 – E.on – Roedsand 2 Offshore Windfarm Foundations, DK
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2008 / 2009 – DONG – Gunfleet Sands Offshore Wind Farm, UK
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2008 / 2009 – DOTI – Alpha Ventus Offshore Wind Farm, DE
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2008 / 2009 – DONG – Horns Rev 2 Wind Farm, DK
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2008 – BARD – Hooksiel Nearshore Wind Generator, DE
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2007 – Q7 Holding – Q7 Wind Farm, NL
Thank you
For further information visit www.gl-nobledenton.com