IEA R&D WIND TASK XI
The Operating Agent
To: Members of the Executive Committee, IEA R&D Wind, Task XI
January 30 th , 2014
Dear Colleague,
At the Executive Committee meeting #72 in Beijing it was decided to arrange a
Topical Expert Meeting on “Floating Offshore Wind Plants”. Venue and date for the meeting is as follows:
Plataforma Oceánica de Canarias
Las Palmas – Canary Islands - Spain
April 28 th and 29 th 2014
The meeting will begin at 09.15 am on Monday and end on Tuesday afternoon.
Please forward an invitation to 2-4 people from your country that will be able to discuss the subject in detail.
In order to give meeting background and aim, an introductory note is attached to this letter. Participants in the meeting are requested to give a short and informal presentation of results from ongoing research/experiences and future plans.
Proceedings from the meeting will be distributed soon after the symposium. To assist in this, the participants are urged to bring along one copy of the material they want to be included in the documentation, preferably in digital format.
Details on travel and accommodation can be found below. Local contact are Jose
Joaquin Hernandez and Monica Ramirez. Questions regarding content and the agenda will be answered by myself on Tel+34 914175042 or e-mail Felix Avia Aranda
<favia@cener.com> .
Please inform me and Mónica Ramirez ( monica.ramirez@plocan.eu
) of the participants you would like to send to the symposium.
Best regards,
Felix Avia
E-mail: favia@cener.com
- Phone: +34 914175042
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Attachments:
1.
2.
3.
IEA Background and Meeting Format
Practicalarrangements
Introductory Note
The objective of IEA RD&D Wind Task 11 is to promote wind turbine technology through cooperative activities and information exchange on RD&D topics of common interest. The Topical Expert Meetings and Joint Action Symposia are of the workshop type, where information is presented and discussed freely in an open manner. See the following web page for more details: http://www.ieawind.org/Task_11/Task_11_HomePage.html
and click on “General description and meeting format”.
More information can be obtained from:
IEA RD&D Wind general www.ieawind.org
Annex XI information http://www.ieawind.org/Task_11/task_11_homepage.html
Annex XXX information http://www.ieawind.org/task_30/task30_Public.html
IEA official home page http://www.iea.org/
The meetings are of the workshop type, where information is presented and discussed in an open manner. The participants decide by themselves what they would like to present. Guidance for presentations is given in the Introductory Note that is distributed together with the invitation to the meeting. This implies that there is no list of presentations in advance.
The meetings will cover two days, starting 09:15 at day one and ending at 14:00 on day two. Oral presentation is expected from all participants. The allocated time is
15-25 minutes including questions and discussion. However, the time is dependent on the number of presentations.
The agenda usually covers the following items:
1.
Collecting proposals for presentations.
2.
Introduction, host.
3.
Introduction by Operating Agent, Recognition of Participants.
4.
Presentation of Introductory Note.
5.
Individual presentations.
6.
Discussion.
7.
Summary of meeting.
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Proceedings will be prepared soon after the meeting. To assist in this, the participants are urged to bring along one copy (preferably in digital format) of the material they want to be included in the documentation. A summary of the meeting will be written by the host or persons involved in preparing the Introductory Note.
For presentation purposes a computer and beamer will be available. Please bring your presentation on a memory stock or CD.
Location: Plataforma Oceánica de Canarias
Carretera de Taliarte, s/n. 35214 Telde - Las Palmas - España
Teléfono +34 928 134 414
Fax: +34 928 133 032
If you need assistance to book an accommodation, please contact Mónica Ramirez
( monica.ramirez@plocan.eu
):
ROOM RATES/night
85.00€
Double (single use) Std.
95.00
€ Double (single use) Sup
Free Services includesd:
Wifi, Spa & Fitness Center, Safety box, Shuttle bus to Las
Canteras beach, Parking and Buffet Breakfast from 5.00 am to 11.00 am
(7% TAX included)
Información extendida Hotel Santa Catalina 2012.pdf
HOTEL ADDRESS:
HOTEL SANTA CATALINA (5*) c/ Leon y Castillo, 227
35005 Las Palmas de Gran Canaria.
Gran Canaria. Canary Islands. Spain.
Phone: +34 928 295445 o +34 928 24 30 40
Mail: reservas@hotelsantacatalina.com
Contact: Mrs Patricia Rodríguez
Booking Ref: PLOCAN
Hotel Santa Catalina (5*)
Hotel Cantur (4*)
ROOM RATES/night:
58,00€ Double (single use)
116.00€ Double
78.00€
Trip
Breakfast included
(7% TAX included)
Half Board Suppl. 10€ p/p/meal
Check availability on line
HOTEL ADDRESS:
HOTEL CANTUR(4*) c/ Sagasta, 28
35008 Las Palmas de Gran Canaria.
Gran Canaria. Canary Islands. Spain.
Phone: +34 928 273000
Mail: direccion@hotelcantur.com
Contact: Mrs.Esther Echave Vega
HOTEL ADDRESS:
APARTAMENTS COLON PLAYA
C/ Alfredo L. Jones, 45
35007 Las Palmas de Gran Canaria
Phone: +34 928 265 954
Fax: +34 928 265 958
Mail: reservas@colonplaya.com
Web:www.colonplaya.com
Apartaments Colón Playa
NOTE: To apply one of the all displayed rates, please, make use of booking ref when mentioned.
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By air
Closest airport is the Gran Canaria Airport. The distance to PLOCAN from the airport is
8.4 km. You can take taxi transport for direct connection to the venue and into the city.
More information can be found here: http://ww2.plocan.eu/es/contacto-y-localizacion.html
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Félix Avia - CENER
The offshore wind industry has experienced significant growth in recent years, and continues to expand worldwide. Placing wind turbines offshore has many advantages. The vast offshore wind resource could power many of the world’s population centers along the coasts. The wind blows harder over the water, and larger turbines can be installed using ships to move the huge components.
However, designing turbines and their support structures for offshore operation is challenging, because sites have different water depths, soil types, and severities of wind and waves.
Nearly all of the off-shore wind turbines installed to date are mounted on fixedbottom support structures in water depths of 35 m or less. Much of the global offshore wind resource is in locations where the water is much deeper than it is at the sites of current installations. The possibility of mounting wind turbines on floating support structures opens up the potential to use such deepwater resources.
Realization of this potential, however, requires cost-effective floating wind turbine designs that can compete with other energy sources.
To minimize the cost and maximize the durability of offshore wind turbine installations, several new types of support structures are being explored. Several floating concepts at deep waters, like HyWind, Sway and BlueH, are already investigated. New ideas and innovative concepts may lead the way for further development of floating offshore wind turbines.
The design and manufacturing of optimized and cost-effective floating wind turbines requires reliable and sophisticated design tools that can model the dynamics and response of floating wind turbine platforms in a comprehensive and fully integrated manner. Currently, several sophisticated simulation codes are capable of modelling floating offshore wind turbines.
One way to identify inaccuracies and errors in new computer models and simulations is to compare their outputs under a wide range of conditions. To compare the codes used to design support structures for offshore wind turbines, the Task 30 of IEA Wind “Offshore Code Comparison Collaboration (OC3)“ began in
2004. In 2010 a new tak was launched to continue the work. The aim of OC4 is not only to benchmark and validate simulation codes on a structure, but also to encourage model and tool development and the training of new analysts. Since the project began, 130 participants from 50 organizations in 18 countries have participated in the task.
To ensure safe and economically feasible designs, model tests are often used for validating and optimizing the floater design before construction starts. This is common practice in the oil&gas offshore market. A key point of model testing.
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floating wind turbines is that wind and waves are present simultaneously in the basin. This makes it possible to correctly study the complex motions and loads of the rotating turbine on a moving platform in wind and waves.
Wind turbines installed in floating offshore platforms presents a new control problem, due to the partly unconstrained movement of the platform and ocean wave excitation. If this additional complexity is not dealt with properly, this may lead to a significant increase in the structural loads and, potentially, instability of the controlled system. New control models need to be developed.
References:
Deep water. The next step for offshore wind energy. EWEA July 2013.
New Research initiatives for advancing the development of Deep Sea
Offshore Wind Technology. John Olav Tande. Nowitech. 2011.
Deepwater Offshore Wind Technology Research Requirements. Walt Musial.
NREL.
State of the Art in Floating Wind Turbine Design Tools. A. Cordle, GL Garrad
Hassan and Partners Ltd. And J. Jonkman, National Renewable Energy
Laboratory. 2011.
State of the art model testing techniques for floating wind turbines. E. de
Ridder, W. Otto, G. Zondervan, F. Savenije and F. Huijs. 2013.
Damping Wind and Wave Loads on a FloatingWind Turbine. Søren
Christiansen, Thomas Bak and Torben Knudsen, Aalborg University.
Influence of Control on the Pitch Damping of a Floating Wind Turbine. J.M.
Jonkman. 2008 ASME Wind Energy Symposium. Reno, Nevada.
A primary goal of the meeting is to give the participants a good overview of the challenges encountered in FOWP. A summary and assessment of issues will be a part of the finalizing discussion.
As a starting point for the potential participants, a list of topics and issues encountered on FOEP has been given here below.

New concepts for FOWP.

Tools for modeling FOWP.

Software for integrated dynamic analysis of FOWP.
 Model testing techniques for FOWP.
 Control of FOWPs.
 Cost reduction of FOWP.
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1.
Introduction.
2.
New concepts for FOWPs.
3.
Tools for modeling FOWPs.
4.
Model testing techniques for FOWPs.
5.
Control of FOWPs.
6.
Cost reduction of FOWPs Summary of sessions.
7.
Discussion and conclusions.
8.
Discussion of an IEA annex.
Participants will typically represent the following type of entities:
 Universities and research organizations.
 Manufacturers of wind turbines.

Power companies, developers and wind turbine owners.

Certification institutes and consultants.

Government representatives.
Each participant is expected to give a short presentation of their experiences in the field. Is somewhat dependent on the number of presentations that will be given.
The outcome of the meeting is a clearer understanding of the critical technical issues and R&D needs regarding development of Floating Offshore Wind Plants, the proceedings of the presentations and a plan for future information exchange/work within this area. Is there a need for continued information exchange in this area?.
(E.g. is there interest in an IEA Task on this topic?)
The presentations can be on any topic that is in line with this Introductory Note.
Each presentation is allocated 15-20 minutes including questions and discussion.
However, the time is dependent on the number of presentations.
Please refer also to the previous IEA Wind Task 11 Topical Expert Meeting (TEM) on
"Offshore Foundation Technology and Knowledge for Shallow, Middle and Deep
Water" which was hosted by Vattenfall WT Control Center in Denmark, on 2011.
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