09 - 11 July, 2019
Dorint City-Hotel Bremen, Germany

Conference day 1

Update on international standards

8:00 am - 8:50 am Registration and welcome coffee

8:50 am - 9:00 am Chairperson's opening

Ricardo Rocha, Head Offshore Substructures at EDP Renováveis

Ricardo Rocha

Head Offshore Substructures
EDP Renováveis

9:00 am - 9:30 am An updated international standard for the design of offshore wind turbines and their support structures: IEC 61400-3-1

The International Electro-technical Commission standard for bottom-fixed offshore wind turbine
design (IEC 61400-3-1) has been significantly updated to reflect advances in offshore wind turbine
technology and the experience gained by the offshore wind industry since the standard was first
published in 2009. The new edition of the standard will be published in 2019 and will be of great
assistance to designers, certifiers and developers of offshore wind turbines and installations. The
proposed presentation will provide a summary of the new edition and highlights the key updates.
Tim Camp is responsible for the development of the IEC standard for offshore wind turbines and
their support structures.
Tim Camp, Co-convenor of TC88 MT3 at LOC Group Ltd

Tim Camp

Co-convenor of TC88 MT3
LOC Group Ltd

Envision foundations for extreme weather conditions

9:30 am - 10:00 am Foundation design of offshore wind turbine in high soil liquefaction potential area

Taiwan is located on the circum-Pacific seismic belt. In addition, the geology of western Taiwan is mainly modern alluvium consisting of sedimentary deposits, which are sand-based, mixed with layered clay soil, and soft. To ensure safety and stability of the offshore wind turbine supporting structures, it is important to assess the offshore wind farms seismic forces reasonably. The objective of this presentation is to provide the design procedure of the supporting structure within the earthquake zone with high liquefaction potential.The seismic demands of CNS15176-1 presented by Bureau of Standards, Metrology and inspection, M.O.E.A. are also be introduced.
• Seismic demand for offshore wind farm in Taiwan
• Soil liquefaction potential of offshore wind farm in Taiwan
• Design consideration of offshore wind turbine foundation with high soil liquefaction potential
Prof. Dr.-Ing. Yu-Shu Kuo, Professor at National Cheng Kung University, Taiwan

Prof. Dr.-Ing. Yu-Shu Kuo

Professor
National Cheng Kung University, Taiwan

10:00 am - 10:15 am Match and win

Identify your group while at the same time getting to know many of your peers in a short amount of time.

10:15 am - 10:45 am Refreshment break and networking

10:45 am - 11:15 am Extreme weather condition analysis

Lars Klett

Principal Engineer, Loads and Site Conditions
DNV-GL

11:15 am - 11:45 am Seismic design of offshore wind turbine foundations – Learnings from projects in Taiwan

• Liquefaction assessment, in loose to medium dense, silty sand, silts and low plasticity silty clays
• Prediction of residual rotation of MP after design seismic event

Søren Peder Hyldal Sørensen, Senior Specialist, Geotechnical Offshore Wind at COWI

Søren Peder Hyldal Sørensen

Senior Specialist, Geotechnical Offshore Wind
COWI

11:45 am - 12:15 pm Optimisation of Offshore Wind Farms


Colin Emmet, Engineering Manager at SNC Lavalin

Colin Emmet

Engineering Manager
SNC Lavalin

Positive feedback loop: Implement structural health and condition monitoring to improve design and operation

12:15 pm - 12:45 pm The Double Slip Joint connection – a game changer in offshore wind

• Fast turbine installation using KCI’s Double Slip Joint
• Fixed and Floating Wind Turbines
Boudewijn van Gelder, Manager Research & Development at KCI Engineers

Boudewijn van Gelder

Manager Research & Development
KCI Engineers

12:45 pm - 2:15 pm Networking lunch

2:15 pm - 2:45 pm Towards smart offshore foundations, how measurements help understand offshore wind turbines

OWI-lab is a Flemish research initiative between universities, Sirris and the (offshore) wind industry.
At the VUB (University of Brussels) OWI-lab has targeted the development of measurement
solutions suited for the offshore environment. We target particular questions, provided by
operators and developers, using state of the art monitoring hardware.
In recent years OWI-lab/VUB has conducted measurements at all Belgian offshore wind farms and
derived methodologies to tackle questions such as soil-structure interaction, structural health
monitoring and residual life assessments. In this presentation we will focus on the recent
developments at the VUB on how monitoring can be used to the benefit of operators and show an
outlook of which direction monitoring hardware is evolving.
Dr. Wout Weijtjens, Research and development engineer at OWI Lab

Dr. Wout Weijtjens

Research and development engineer
OWI Lab

Prof. Dr. Christof Devriendt, Scientific Research Coordinator at OWI-Lab

Prof. Dr. Christof Devriendt

Scientific Research Coordinator
OWI-Lab

2:45 pm - 3:15 pm Structural health monitoring

Structural health monitoring systems are installed using a variety of calibration techniques and
often their performance reliability is not properly understood. The presentation will examine how
systems can be calibrated and performance quantified. In addition, inspection reliability and how
this fits with SHM and probabilistic remaining life calculations will be presented.
Prof. Feargal Brennan, Professor of Offshore Engineering at University of Strathclyde

Prof. Feargal Brennan

Professor of Offshore Engineering
University of Strathclyde

3:15 pm - 3:45 pm Digital Guardian: Health monitoring and lifetime extension of OWF structures

LICengineering and Akselos have developed a reduced based FE-tool for design and monitoring of
offshore structures such as OWF Foundations. The FE tool is gives the ability to model all in One
Model = Digital Twin, including complex joints, with CPU speed approximately 1000 times higher
than conventional FEA, which makes it possible to perform real time analyses from on-line
measured motions.
In combination with a novel Structural Integrity Monitoring system, based on Operational Modal
Analyses developed by LIC, this makes an efficient Guardian tool for structural health monitoring
and providing valuable information for lifetime extension.
The system is tested on a offshore platform in the North Sea operated by a super major, and it will
be demonstrated how the Digital Guardian can provide the operator with health monitoring, to be
used in the daily operation, for lifetime extension or in relation to due diligence etc.
Hans Jørgen Riber, Director R&D at LICengineering A/S

Hans Jørgen Riber

Director R&D
LICengineering A/S

3:45 pm - 4:15 pm Refreshment break and networking

Advances and development of floating foundations

4:15 pm - 4:45 pm Main differences between floating solutions and jackets from the manufacturing point of view

Nervión, subcontractor of Navantia, has participated in the Wikinger project (Iberdrola), Nissum
Bredning Vind (Siemens), Hywind (Equinor), East Anglia ONE (ScottishPower) and WindFloat (EDP)
projects with turnkey contracts for the assembly work of all these structures.
This privileged position has allowed Nervión to know first-hand how the Navantia shipyard has had
to adapt for each situation.
3-legged Jackets, 4-legged Jackets, Spars, Floating Platforms, are different models that make the
shipyard and the companies that assemble these structures have to adapt agilely to be able to
undertake the projects with safety and efficiency.



Roberto Carlos Bouzas Saavedra, Project Manager Offshore & Public Naval at Nervión Industries

Roberto Carlos Bouzas Saavedra

Project Manager Offshore & Public Naval
Nervión Industries

4:45 pm - 5:15 pm Floating Spar Wind Turbine Generators with an Integrated Substructure and Tower

The proposed concept relates to modifying the construction/assembly method to reduce the
cost and schedule of a floating Spar wind platform. Detail analysis was performed and execution
plan developed to quantify the benefits of integrating the tower and the substructure at the
construction yard in a horizontal position compared to installing the tower by lifting while the wind
platform is floating vertically.
Igor Kopsov, Sales and Marketing Manager at Technip FMC

Igor Kopsov

Sales and Marketing Manager
Technip FMC

5:15 pm - 5:45 pm SATH floating solution, scaling up to commercial

• SATHneXt 1:6 – deployment of first floating wind turbine using SATH technology
• DemoSATH – 2MW demonstration project
• SATH +10MW type certification
David Carrascosa, CTO at Saitec

David Carrascosa

CTO
Saitec

5:45 pm - 6:15 pm Panel discussion: What did we learn from floating foundations so far?

Emmanuel Chanfreau, CTO at Eolfi

Emmanuel Chanfreau

CTO
Eolfi

Guillaume Ardoise, Head of Business Development at Principle Power

Guillaume Ardoise

Head of Business Development
Principle Power

David Carrascosa, CTO at Saitec

David Carrascosa

CTO
Saitec

6:15 pm - 6:25 pm Chairperson's closing

Ricardo Rocha, Head Offshore Substructures at EDP Renováveis

Ricardo Rocha

Head Offshore Substructures
EDP Renováveis

6:45 pm - 9:15 pm Evening event