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NEW GUIDELINE FOR OFFSHORE WIND TURBINES

NEW GUIDELINE FOR OFFSHORE WIND TURBINES. 2013-02-07, Mike Wöbbeking. Content. GL Renewables Certification – who we are Challenges offshore Offshore Guideline 2012. Germanischer Lloyd (GL). technical surveillance society founded 1867 renewables since 1977 own rules and guidelines

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NEW GUIDELINE FOR OFFSHORE WIND TURBINES

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  1. NEW GUIDELINE FOR OFFSHORE WIND TURBINES 2013-02-07, Mike Wöbbeking

  2. Content • GL Renewables Certification – who we are • Challenges offshore • Offshore Guideline 2012 NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  3. Germanischer Lloyd (GL) • technical surveillancesociety • founded 1867 • renewables since 1977 • own rules and guidelines • ~7000 persons worldwide • ~230 locations • ~80 countries NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  4. Heerenveen Sint Maarten Kaiser-Wilhelm- Koog Glasgow London Slough Copenhagen Hinnerup Oldenburg Hamburg Warsaw Bristol Dublin Vancouver Ottawa Portland San Diego Montreal Peterborough Austin Monterrey Porto Alegre Beijing Tokyo Shanghai Mumbai Bangalore Newcastle Melbourne Wellington Paris Imola Lisbon Barcelona Zaragoza Madrid Izmir Geographical Reach of GL Renewables >900 staff, in 43 locations, across 23 countries • GL Renewables Certification • local offices in 6 countries • Present in three major regions: Americas, Asia, Europe • ~185 staff worldwide NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  5. Challenges in the offshore wind industry • new industry with few experienced partners particular in manufacturing • harsh weather conditions, challenging environmental conditions • growing number and increase in number of size of projects • multiple partners in contracts and projects • scarce expert resources • availability of grid connection • CoE (Cost of Energy) • HSE (Health, Safety & Environment) • … Source: DOTI NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  6. Challenges in the offshore wind industry • new industry with few experienced partners particular in manufacturing • harsh weather conditions, challenging environmental conditions • growing number and increase in number of size of projects • multiple partners in contracts and projects • scarce expert resources • availability of grid connection • CoE (Cost of Energy) • HSE (Health, Safety & Environment) • … Source: DOTI NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  7. December 2012 NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  8. New Offshore Guideline NEW: Released in December 2012 • Latest developments in offshore industry • Latest testing conditions, safety systems and quality requirements • Review and testing of control systems due to increased size of turbines and mitigation of loads • Novel analysis methods for piles under cyclic axial loading considering the high frequency of tensial cyclic loads • Requirements for floating wind turbines regarding stability and mooring safety requirements are addressed • And more NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  9. 2005 2012 Same look andstructure NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  10. New content NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  11. More delicious New content NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  12. Design Assessment Quality Management Implementation of Design Requirements in Production and Erection Prototype Testing Type Certificate Type Certification • The Guideline for Offshore Wind Turbines was improved to fully comply with the (onshore) Guideline for Wind Turbines of 2010 (GL 2010 -> GL 2012) and to cover IEC 61400-3 / IEC 61400-1 • Type Certification especially for offshore wind turbines, floating and fixed • D-Design assessment included as a "feasibility check" prior to the updated C-Design Assessment for prototypes • A- and B- Type Offshore Certificate introduced (B-type allowing for non-safety relevant open items) • Component certification for all major parts included • Improvement of section regarding assessment of Implementation of the design-related requirements in Production and Erection (IPE) and introduction of Critical Manufacturing Processes (CMP) • Improved section ‘Test within the scope of the design assessment’. The section now gives more details, the scope is extended • Improved section ‘Load measurements’. Additional requirements were added for measurements at offshore wind turbines and floating wind turbines NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  13. Project Certification • A- and B- Project Certificate introduced (B-type allowing for non-safety relevant open items) • Site design conditions and design basis requirements reviewed and improved • Site-specific design requirements improved (load analysis, foundation design, electrical installation) • Surveillance during manufacture, transport and installation reviewed. Surveillance for 25% of the turbines required for project certification • Commissioning updated, witnessing for 10% of the turbines is necessary NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  14. Floating Wind Turbines • Different concepts of floating wind turbines introduced including their stability principles • Prototype testing of floating wind turbines introduced • Safety system requirements extended to floating (tightness and draft, position, mooring system, motions monitoring) • Freeboard, intact and damage stability requirements have been introduced. Requirements fulfil international codes • Special load cases for floating turbines. A load case group DLC 10.x is introduced to consider damage stability and mooring line loss situations • Consideration of additional parameters in control design (e.g. body movement) • Section with requirements for floating structures, including mooring equipment requirements • Requirements for towing of floating wind turbines are included Source: www.siemens.com NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  15. Turbine • Requirements introduced for external power supply based on project experience • Requirements and classification of materials improved • Load case definitions improved and simplified • New list ‘Load assessment relevant data’, to support design process • New appendix table ‘List of protection functions (example)’ • Section "Drive Train Dynamics" included • Guidance on specification of synthetic SN-curves • Requirements for corrosion protection extended • Improved section ‘Automatic ice detection’ • New sections including heli-hoist platforms, aviation obstruction lights and met masts Source: Siemens NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  16. Transport and Installation • Substantially modified to cover all operations starting from load-out and transportation till the lifting operations and installation procedures including vessel positioning • Harmonized with other GL rules in offshore sector • The components addressed are: • Load-out (floating, lifted, skidded, by trailers, grounded) • Transportation, including sea-fastening and towing (barges, floating) • Lifting • Installation of jackets, piles and topside structures • Vessel positioning • Pipe / cable laying NEW GUIDELINE FOR OFFSHORE WIND TURBINES

  17. Thank you very much for your attention Mike Woebbeking Germanischer Lloyd Industrial Services GmbHRenewables Certification Vice PresidentHead of Certification Body Brooktorkai 1820457 Hamburg GERMANY Phone: +49 (0) 40 - 3 61 49 - 33 07 Fax: +49 (0) 40 - 3 61 49 - 17 20 Email: mike.woebbeking@gl-group.com www: http://www.gl-group.com/GLRenewables Please visit us at booth No. A-C60.

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