International Conference RAVE 2012 May 8-10, 2012 Bremerhaven, Germany

Photo by © DOTI, Matthias Ibeler

Conference program

Funding body:

funded on the base of an act of the German Parliament

RAVE Supervisor on behalf of BMU:

RAVE Coordinator:

Photo by © DOTI, Matthias Ibeler

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Welcome to RAVE 2012 Wind, waves, North Sea, offshore wind energy. When we hear these words, Germany‘s first offshore wind farm alpha ventus comes to mind. At the mention of alpha ventus, one immediately thinks of RAVE – Germany‘s major offshore research initiative. For the last 4 years over 100 scientists from very different research areas, and a multitude of research institutes and companies have been involved in more than 25 projects to gather and share trans-disciplinary knowledge and experience emerging from the first German offshore wind park alpha ventus. By accompanying the construction and operation of alpha ventus with a unique and extensive measurement campaign, the research initiative RAVE – Research at alpha ventus has enormously strengthened fundamental and applied research in all areas regarding offshore wind power. It has also enhanced technology improvement and therefore contributed to forthcoming challenges in sustainable energy supply and availability. The International Conference RAVE 2012 will present cutting-edge results from the research initiative RAVE which will be introduced for the first time. RAVE 2012, however, will also bring together international research findings and industrial expertise with the objective of creating a trans-disciplinary forum of offshore wind power know-how. The target is a 20% share of renewables in total EU energy supply by 2020. Germany wants to achieve a 80% share by 2050 in the electricity sector. Offshore wind energy plays a key role in this concept for a sustainable future. Let’s discover together the contribution made by research at alpha ventus in achieving this target.

Prof. Dr. Jürgen Schmid, Director of the Fraunhofer IWES in Kassel and Member of the German Advisory Council on Global Change, WBGU Picture: © Pia Palmus

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Day 1: Tuesday, May 8th, 2012 11:00

Registration / Lunch

13:00

Opening session and panel debate

15:00

Coffee break

15:30

Session 1

Session 2

Offshore measurements & data, health & safety

Environmental monitoring (1)

Chairs: Dr. T. Neumann, German Wind Energy Institute DEWI; D. Stein, GL Garrad Hassan

Chairs: K. Blasche, Federal Maritime and Hydrographic Agency BSH; T. Verfuß, Project Management Jülich PtJ

17:30

End of conference day 1

19:00

Social event: Flying buffet and exhibition “The Journey” at Klimahaus Bremerhaven 80 Ost

Coffee breaks sponsored by

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Day 2: Wednesday, May 9th, 2012

9:00

Session 3

Session 4

Wind turbine design and loads

Environmental monitoring (2)

Chairs: Prof. Dr. M. Kühn, ForWind - University of Oldenburg; K. Irschik, AREVA Wind

Chairs: T. Verfuß, Project Management Jülich PtJ; K. Blasche, Federal Maritime and Hydrographic Agency BSH

10:30

11:00

12:30

13:30

Coffee break Session 5

Session 6

Wind turbine control and wind farm flow

Site conditions

Chairs: Dr. D. Heinemann, ForWind - University of Oldenburg; Dr. J. Kruse, REpower Systems Lunch break sponsored by Session 7

Session 8

Support structures (1)

Forecasting

Chairs: Prof. Dr. R. Rolfes, ForWind - Leibniz Universität Hannover; Dr. M. Seidel, REpower Systems

Chairs: Dr. B. Lange, Fraunhofer IWES; Dr. C. Möhrlen, WEPROG

15:00

15:30

Chairs: Dr. B. Lange, Fraunhofer IWES; Prof. Dr. S. Emeis, Karlsruhe Institute of Technology KIT

Coffee break Session 9

Session 10

Support structures (2)

Grid integration

Chairs: Prof. Dr. R. Rolfes, ForWind - Leibniz Universität Hannover; Dr. M. Seidel, REpower Systems

Chairs: Prof. Dr. L. Hofmann, Fraunhofer IWES; C. Schulze Wischeler, TenneT Offshore

17:15

Closing session

18:00

End of conference day 2

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Excursions Day 3: Thursday, May 10th, 2012 Join us for a fascinating offshore adventure, and benefit from the perfect networking atmosphere during our sea cruise to alpha ventus… …or stay onshore and visit manufacturers, onshore test sites, and simulation laboratories. For booking an excursion please use the conference registration form, which you may download from the conference webpage www.rave2012.de. Bookings during the conference can only be accepted if the excursion is not fully booked.

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Offshore Option (page 18)

Sea cruise to alpha ventus Visit the first German offshore wind park Duration approx. 9:30 - 20:00

Onshore Option A (page 19)

Bremerhaven full day tour Get to know offshore wind power locations, manufacturers, and their production sites. Duration approx. 9:00 - 17:00

Onshore Option B (page 19)

Bremerhaven half day tour Get to know offshore wind power research locations, test sites, and laboratories. Duration approx. 9:00 - 14:00

Opening Session Chair: Prof. Dr. Jürgen Schmid, Director Fraunhofer IWES, Kassel This session will be held in German with simultaneous English translation 13:00

Welcome • Prof. Dr. Jürgen Schmid • Dr. Joachim Lohse (Senator for Environment, Construction and Trans- portation of Bremen) [tbc]

13:10

Opening speech Berthold Goeke (Deputy Director-General Renewable Energies of the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety)

13:30 alpha ventus – a test field for science and offshore investors Dr. Claus Burkhardt (CEO DOTI) 13:45 RAVE – Research at alpha ventus Prof. Dr. Jürgen Schmid 14:00

Panel debate: “Review and outlook: lessons from RAVE” • Berthold Goeke • Dr. Claus Burkhardt • Jean Huby (CEO AREVA Wind) • NN (REpower Systems) [tbc] • Jörgen Thiele (Board member, Stiftung Offshore Windenergie) • Prof. Dr. Andreas Reuter (Director Fraunhofer IWES, Bremerhaven) Moderator: Prof. Dr. Jürgen Schmid

15:00 End

©ATLANTIC Hotel SAIL City

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Session 1

May 8th, 15:30, conference room 1

Offshore measurements & data, health & safety Chairs: Dr. Tom Neumann, German Wind Energy Institute (DEWI); Detlef Stein, GL Garrad Hassan

1.1 Cornerstone for R&D projects: RAVE measurements Project: RAVE - Measurements and Data Management K. Herklotz, Federal Maritime and Hydrographic Agency (BSH) 1.2 Experiences and bottlenecks of R&D logistics Project: RAVE - Measurements and Data Management W. Heckmann, GL Garrad Hassan 1.3 Ready for data? The challenge of measurement installation and operation at alpha ventus Project: RAVE - Measurements and Data Management D. Kühnel, German Wind Energy Institute (DEWI) 1.4 Data warehousing for distributed R&D: overview and insights gained from RAVE measurements Project: RAVE - Coordination S. Gudenkauf, OFFIS 1.5 Development of LIDAR wind measurement techniques Project: RAVE - LIDAR, RAVE - LIDAR II A. Rettenmeier, Stuttgart Wind Energy (SWE), University of Stuttgart 1.6 Sonar Transponder for sub marine safety: results of the research project at alpha ventus Project: RAVE - Sonar transponders M. Fricke, ForWind - Leibniz Universität Hannover 1.7 TelemedOffshore: telemedical emergency care for offshore wind parks Project: RAVE - TelemedOffshore Dr. R. Lawatscheck, Telemedizincentrum Charité Berlin

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Environmental monitoring (1) Chairs: Kristin Blasche, Federal Maritime and Hydrographic Agency (BSH); Tobias Verfuß, Project Management Jülich (PtJ)

Session 2

May 8th, 15:30, conference room 2

2.1 Introduction: Coordination of ecological research - StUK evaluation Project: RAVE - Ecology K. Blasche, Federal Maritime and Hydrographic Agency (BSH) 2.2 Licensing requirements and conditions in the German EEZ Dr. N. Nolte, Federal Maritime and Hydrographic Agency (BSH) 2.3 Social acceptance of offshore wind energy in Germany Project: RAVE - Acceptance PD Dr. G. Hübner, Martin Luther University Halle Wittenberg 2.4 Fish and benthos at alpha ventus Project: RAVE - Ecology Dr. K. Reichert, Alfred Wegener Institute for Polar and Marine Research 2.5 Offshore wind farms in the Belgian part of the North Sea: early environmental impacts and selected findings B. Rumes, Royal Belgian Institute of Natural Sciences, MUMM 2.6 Possible impacts of wind farms on seabirds: the case study alpha ventus Project: RAVE - Ecology PD Dr. S. Garthe, University of Kiel, Research and Technology Centre 2.7 Detecting effects on migratory birds: new results and perspectives Project: RAVE - Ecology Dr. T. Coppack, Institute of Applied Ecology R. Hill, Avitec Research 2.8 Monitoring marine mammals at alpha ventus A. Diederichs, BioConsultSH

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Session 3

May 9th, 09:00, conference room 1

Wind turbine design and loads Chairs: Prof. Dr. Martin Kühn, ForWind - University of Oldenburg; Kai Irschik, AREVA Wind

3.1 Optimizing offshore wind turbine components and rotor blades Project: RAVE - REpower components, RAVE - REpower blades G. Kroll, Dr. J. Kruse, REpower Systems 3.2 Development, construction, and testing of the M5000 wind turbines under harsh offshore conditions Project: RAVE - AREVA Wind M5000 Improvement Joachim Arndt, AREVA Wind 3.3 Verification of dynamic characteristics and loads of offshore wind turbines Project: RAVE - OWEA J. Quappen, D. Kaufer, Stuttgart Wind Energy (SWE), University of Stuttgart J. Dubois, ForWind - Leibniz Universität Hannover 3.4 Offshore~WMEP - monitoring offshore wind energy use in Germany and Europe: from concept to implementation Project: RAVE - OWMEP P. Kühn, S. Faulstich, S. Pfaffel, K. Rafik, Fraunhofer IWES

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Environmental monitoring (2) Chairs: Tobias Verfuß, Project Management Jülich (PtJ); Kristin Blasche, Federal Maritime and Hydrographic Agency (BSH)

Session 4

May 9th, 09:00, conference room 2

4.1 Introduction: R&D projects underwater noise and mitigation T. Verfuß, Project Management Jülich (PtJ) 4.2 Long term underwater acoustic monitoring at FINO platforms A. Lübben, German Wind Energy Institute (DEWI) 4.3 Underwater construction and operational noise at alpha ventus Project: RAVE - Ecology Dr. K. Betke, Institute for technical and applied physics (itap) 4.4 Testing of bubble curtains to mitigate hydro sound levels at offshore construction sites (2007 to 2011) Project: RAVE - Hydro sound Dr. T. Grießmann, ForWind - Leibniz Universität Hannover 4.5 Operational underwater noise at alpha ventus Project: RAVE - Operational noise Dr. M. Benesch, Flensburg University of Applied Sciences 4.6 Effects of the construction and operation of alpha ventus on harbour porpoises Project: RAVE - Ecology M. Dähne, University of Veterinary Medecine Hannover, Institute of Terrestrial and Aquatic Wildlife Research 4.7 The Marine Strategy Framework Directive and Underwater Noise Dr. F. Thomsen, DHI

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Session 5

May 9th, 11:00, conference room 1

Wind turbine control and wind farm flow Chairs: Dr. Detlev Heinemann, ForWind - University of Oldenburg; Dr. Jan Kruse, REpower Systems

5.1 LIDAR-assisted wind turbine control Project: RAVE - LIDAR, RAVE - LIDAR II D. Schlipf et al., Stuttgart Wind Energy (SWE), University of Stuttgart 5.2 Monitoring fatigue loads of offshore wind turbines with standard data Project: RAVE - OWEA U. Smolka, Stuttgart Wind Energy (SWE), University of Stuttgart 5.3 CFD simulations of wind turbines under atmospheric inflow conditions Project: RAVE - OWEA K. Meister, T. Lutz, E. Krämer, Institute of Aerodynamics and Gas Dynamics, University of Stuttgart 5.4 Interaction of wind turbine wakes and inter wind farm effects Project: RAVE - OWEA Dr. G. Steinfeld, E. Stütz, ForWind - University of Oldenburg 5.5 Analysis of wake-induced wind turbine loads Project: RAVE - OWEA J.J. Trujillo, B. Kuhnle, H. Beck, ForWind - University of Oldenburg

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Site conditions Chairs: Dr. Bernhard Lange, Fraunhofer IWES; Prof. Dr. Stefan Emeis, Karlsruhe Institute of Technology (KIT)

Session 6

May 9th, 11:00, conference room 2

6.1 Offshore wind conditions Invited talk A. Peña, S.-E. Gryning, DTU-RisØ Windenergie 6.2 Meteorological conditions at Fino 1 in the vicinity of alpha ventus Invited talk F. Kinder, German Wind Energy Institute (DEWI) 6.3 Description and parameterization of turbulence in the marine atmospheric boundary layer Project: RAVE - VERITAS, RAVE - TUFFO Prof. Dr. S. Emeis, Karlsruhe Institute of Technology (KIT) 6.4 Statistics of extreme wind events and power curve monitoring Project: RAVE - LIDAR, RAVE - OWEA Dr. M. Wächter, ForWind - University of Oldenburg 6.5 Oceanographic and Geologic conditions Project: RAVE - Oceanography M. Lambers-Huesmann, J.G. Fischer, Federal Maritime and Hydrographic Agency (BSH) 6.6 How do environmental conditions at sea affect components of offshore wind turbines? First results of methodology and investigation of test materials and oils Project: RAVE - UFO U. Kühne, University of Applied Sciences Bremerhaven, fk-wind: Institute for Wind Energy

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Session 7

May 9th, 13:30, conference room 1

Support structures (1) Chairs: Prof. Dr. Raimund Rolfes, ForWind - Leibniz Universität Hannover; Dr. Marc Seidel, REpower Systems

7.1 Influences of manufacturing processes on offshore support structures Project: RAVE - GIGAWIND alpha ventus Prof. Dr. P. Schaumann, ForWind - Leibniz Universität Hannover Dr. H. Huhn, Fraunhofer IWES 7.2 Wave impact and scour development simulations at Tripod Foundation Structures: Processes, Models and Countermeasures Project: RAVE - GIGAWIND alpha ventus Prof. Dr. T. Schlurmann, A. Hildebrandt, A. Stahlmann, F. Nazarpour, T. Mai Cao, ForWind - Leibniz Universität Hannover 7.3 Global and local monitoring of system dynamics and grouted joint displacements at the Tripod support structure in alpha ventus Project: RAVE - GIGAWIND alpha ventus M. Häckell, N. Scholle, Prof. Dr. R. Rolfes, Prof. Dr. L. Lohaus, ForWind Leibniz Universität Hannover J. Rabe, J. Wagener, Dr. H. Huhn, Fraunhofer IWES 7.4 Behavior and capacity of pile foundations for offshore wind energy converters Project: RAVE - foundations, RAVE - GIGAWIND alpha ventus Prof. Dr. W. Rücker, Federal Institute for Materials Research and Testing (BAM) Prof. Dr. M. Achmus, ForWind - Leibniz Universität Hannover

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Forecasting Chairs: Dr. Bernhard Lange, Fraunhofer IWES; Dr. Corinna Möhrlen, WEPROG

Session 8

May 9th, 13:30, conference room 2

8.1 Probabilistic forecasting of wind and waves for offshore wind energy Invited talk Dr. P. Pinson, Prof. Dr. H. Madsen, M. Fortin, Technical University of Denmark (DTU) 8.2 Advances on shortest-term predictability with Ensemble Kalman filtering Project: RAVE - Grid integration Dr. C. Möhrlen, WEPROG 8.3 Using Weather Prediction Ensembles for optimizing Offshore Wind Forecasts Project: RAVE - Grid integration Dr. A. Wessel, Fraunhofer IWES 8.4 A physical model for Offshore wind power prediction Project: RAVE - Grid integration M. Kurt, Fraunhofer IWES 8.5 Characterisation of wind power fluctuations and prediction Project: RAVE - Grid integration Dr. L. von Bremen, ForWind - University of Oldenburg 8.6 Farm efficiency and power matrices based on CFD simulations and comparison with measurements Project: RAVE - OWEA A. Westerhellweg, German Wind Energy Institute (DEWI)

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Session 9

May 9th, 15:30, conference room 1

Support structures (2) Chairs: Prof. Dr. Raimund Rolfes, ForWind - Leibniz Universität Hannover; Dr. Marc Seidel, REpower Systems

9.1 Experiences with design and operation of fixed steel structures in the oil & gas sector Prof. Dr. T. Moan, Norwegian University of Science and Technology (NTNU) 9.2 The bucket foundation and its competitiveness versus monopiles and jacket structures Prof. Dr. L.B. Ibsen, Aalborg University 9.3 Important issues in the development of new foundation and substructure concepts for offshore wind J. Reimers, AREVA Wind 9.4 Concepts for gravity base foundations Prof. Dr. S. Marx, B. Schmidt, ForWind - Leibniz Universität Hannover Dr. J. Göhlmann, grbv

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Grid integration Chairs: Prof. Dr. Lutz Hofmann, Fraunhofer IWES; Christoph Schulze Wischeler, TenneT Offshore

Session 10

May 9th, 15:30, conference room 2

10.1 Challenges in planning, design and construction of offshore grid connections C. Schulze Wischeler, TenneT Offshore 10.2 Influence of offshore wind farms on the European electricity market and transmission system Project: RAVE - Grid integration C. Rathke, ForWind - Leibniz Universität Hannover 10.3 WCMS in interaction with alpha ventus Project: RAVE - Grid integration L. Löwer, Fraunhofer IWES 10.4 RAVE for the future integration of offshore grids Project: RAVE - Grid integration Dr. B. Valov, Fraunhofer IWES 10.5 Optimal operation of offshore grid Project: RAVE - Grid integration Dr. K. Rudion, Otto-von-Guericke-Universität Magdeburg

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Excursions Thursday, May 10th 2012 The organizer reserves the right to amend the programme at short notice.

Offshore Option: Sea cruise to alpha ventus Visit the first German offshore wind park! A great opportunity for offshore networking! Duration approx. 9:30 - 20:00 Cost p.p.: 110 € Number of participants is limited. Includes: • Bus transfer from Bremerhaven Atlantic Hotel SAIL City to Cuxhaven port „Alte Liebe“. • Ship transfer to Heligoland by HSC „Halunder Jet“ • Exclusive cruise to alpha ventus with the Halunder Jet. • Transfer from Heligoland back to Cuxhaven port. • Bus transfer from Cuxhaven to Bremerhaven Atlantic Hotel SAIL City. Important Information: Does not include food and beverages. For planning and contractual reasons we need your binding registration for this excursion until April 2nd, 2012, 18:00 CET. Minimum number of participants required. Food and beverages are available on board at your own expense. Due to non-predictable, possibly adverse meteorological conditions parts of the sea cruise or the complete sea cruise may be cancelled, and will then not be charged. In case of cancellation due to adverse weather conditions, participants will stay on Heligoland and may enjoy the nature or culture. Bird observation, duty free shopping, a tour to the bunkers of Heligoland with information on the island‘s history, a visit to one of the Fraunhofer IWES research sites. Please note that any alternatives will be organized very spontaneously and therefore cannot be guaranteed. Booking policy: first come - first serve. For more information on Heligoland, the cruise and alpha ventus: www.helgoland.de/en www.helgoline.de www.alpha-ventus.de

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Onshore Option A: Bremerhaven full day tour Get to know offshore wind power locations, manufacturers, and their production sites. • Onshore test sites: REpower 5M on a Jacket foundation, AREVA Wind M5000 on a Tripod foundation • AREVA Wind GmbH • REpower Systems SE Duration approx. 9:00 - 17:00 (lunch break included) Cost p.p.: 50 € (VAT-exempt) Number of participants is limited. Includes: Bus transfer from the Atlantic Hotel SAIL City and access to the different sites. Lunch with soft drinks. Many thanks to REpower Systems and AREVA Wind for hosting this event!

Onshore Option B: Bremerhaven half day tour • Onshore test sites: REpower 5M on a Jacket foundation, AREVA Wind M5000 on a Tripod foundation • Fraunhofer IWES: Climate chamber for simultaneous simulation of mechanical and environmental influences; component testing, material testing • Deutsche WindGuard: Wind Tunnel Centre Cost p.p.: 20 € (VAT-exempt) Number of participants is limited. Includes: Bus transfer from Bremerhaven Atlantic Hotel SAIL City to the different sites in Bremerhaven and back. Snack and refreshments. Many thanks to Fraunhofer IWES Bremerhaven and Deutsche WindGuard for hosting this event!

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Social event Flying buffet and exhibition „The Journey“ at Klimahaus Bremerhaven 8° Ost May 8th, 19:00 – 23:00 We cordially invite you to recharge your batteries at our social event at the Klimahaus, situated adjacent to the conference center. Commencing at 7 p.m. you will enjoy a flying buffet with other offshore wind power enthusiasts, and all adventure-lovers are invited to undertake a journey of discovery through the climate zones of the earth.

Exhibition: A journey of discovery through the climate zones of the Earth

A journey around the world beginning and ending in Bremerhaven, always following the 8th degree of longitude! Travel around the world within an area of 5000 m2: pass though a whole range of climate zones and encounter people whose daily lives are profoundly influenced by each prevalent climate. Experience extremes of temperature and discover fascinating creatures and plants. Interactive exhibits help visitors to literally grasp even complex interdependencies in the climatic system of the Earth. Pictures: © Klimahaus® Bremerhaven 8° Ost

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Venue - Bremerhaven Bremerhaven is the largest German city on the North Sea coast and an important center of the growing German offshore wind industry. Several offshore wind companies such as manufacturers, logistic, maintenance and service providers are situated there as well as research institutes.

Conference Center Bremerhaven ATLANTIC Hotel SAIL City Am Strom 1 27568 Bremerhaven Tel. +49 (0)471 30990-0 www.atlantic-hotels.de

©ATLANTIC Hotel SAIL City

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Registration Number of participants is limited. Early registration is recommended. Conference fee (VAT-exempt) Conference delegates: 295 € Early fee, registration until March, 31st, 2012 395 € Late fee, registration until April, 30th, 2012 450 € On site - only if places available Includes: scientific program on May 8th and 9th, lunch and coffee breaks on May 8th and 9th, evening event with flying buffet and „the journey“ at the Klimahaus Bremerhaven on May 8th, event publications. Students*: 95 € Early fee, registration until March, 31st, 2012 150 € Late fee, registration until April, 30th, 2012 200 € On site - only if places available * Only full time students up to 30 years of age. Student registration requires a copy of a valid student ID (current term: Summer 2011) which is to be sent together with the registration form by fax, or e-mail. The student fee includes the scientific program on May 8th and 9th, lunch and coffee breaks on May 8th and 9th, event publications. The student fee does not include the evening event with flying buffet and „The Journey“ at the Klimahaus Bremerhaven on May 8th. Additional vouchers for the social event at Klimahaus Bremerhaven 8° Ost are available on site at 80 €.

Register now! www.rave2012.de

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The RAVE Initiative The German Federal Ministry for the Environment (BMU) aims to accelerate the wind energy development offshore. For this purpose the RAVE research initiative started in 2008. It accompanies the construction (completed in 2009) and operation of the alpha ventus test site to attain a broad basis of experience and expertise for future offshore wind parks. RAVE consists of a variety of research projects in connection with the installation and operation of alpha ventus. The overall objective is to reduce the costs of offshore wind energy deployment in deep water. The offshore wind farm alpha ventus is located 45 km north of the island of Borkum, next to the research platform „FINO 1“. It comprises twelve offshore wind turbines. Six turbines of each type, AREVA Wind M5000 (on a Tripod) and REpower 5M (on a Jacket).

RAVE Coordination The objective of the RAVE Coordination project is to network the currently 25 individual RAVE projects and to represent them. In order to use synergies and improve quality of results, the collaboration is based on a balanced concept. The organizational coordination is achieved by the RAVE steering committee. Moreover, international cooperation is supported through RAVE delegates in the European Wind Energy Technology Platform (TPWind) and through cooperation within the International Energy Agency Implementing Agreement for Co-operation in the Research, Development, and Deployment of Wind Energy Systems (IEA Wind). In addition, RAVE Coordination is responsible for public relations. Experiences and results originating from RAVE research activities are presented to scientists, students, investors, politics, and the general public. In order to reach a broad forum, RAVE Coordination organizes and carries out the RAVE International Conference 2012. 23

Members of the RAVE Initiative

STIFTUNG

OFF HORE WINDENERGIE

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Impressum Organizer of RAVE 2012: Fraunhofer Institute for Wind Energy and Energy Systems Technology Königstor 59, 34119 Kassel, Germany Editors: Michael Durstewitz Bernhard Lange Eva Otto Sebastian Pfaffel Susann Spriestersbach Fraunhofer IWES Tel.: +49 (0)561-7294-272 [email protected] www.rave2012.de www.rave-offshore.de www.iwes.fraunhofer.de All pictures in this brochure © Fraunhofer IWES, unless otherwise quoted.

International Conference RAVE 2012 presents cutting-edge results from offshore wind power research Conference topics are: • Offshore measurements & data, health & safety • Wind turbine design & loads • Wind turbine control and wind farm flow • Foundation and support structures • Environmental monitoring & social acceptance • Site conditions & forecasting • Grid integration Excursions: • Sea cruise to alpha ventus • Manufacturers and test sites • Test and simulation laboratories

Organized by

www.rave2012.de