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EWEC 2010 – Warsaw

Offshore Access: “A key driver to increase offshore wind farms efficiency”. EWEC 2010 – Warsaw . 22nd April, 2010, “Offshore access, safety and standards”. INDEX. INTRODUCTION. BACKGROUND. ACCESS & TRANSFER SYSTEMS. RESULTS. DISCUSSION. CONCLUSIONS. INTRODUCTION.

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EWEC 2010 – Warsaw

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  1. Offshore Access: “A key driver to increase offshore wind farms efficiency” EWEC 2010 – Warsaw 22nd April, 2010, “Offshore access, safety and standards”

  2. INDEX INTRODUCTION BACKGROUND ACCESS & TRANSFER SYSTEMS RESULTS DISCUSSION CONCLUSIONS Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  3. INTRODUCTION OWF Efficiency (Energy yield, CAPEX, OPEX) vs Incomes OWF Availability (Accessibility + Reliability) ACCESSIBILITY  KEY DRIVER Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  4. CERTIFICATION AND CLASSIFICATION STANDARDS FOR OFFSHORE WIND ACCESIBILITY BACKGROUND • WORKSCOPE: Offshore wind sector itself and additional areas (H&S, O&M, oil & gas) • “OS-J201 Offshore Substations for Wind Farms (Section 7. Access and Transfer)”.- DNV (Oct´09) • “OHSAS 18001 Health & Safety Standard”.- Occupational Health & Safety Advisory Services (OHSAS). • “Environmental, Health and Safety Guidelines for Wind Energy”.- International Finance Corporation (World Bank Group). • “Recommendations for Design of Offshore Wind Turbines (RECOFF) (Work Package 6: Operation and maintenance: labor safety and standard method for data collection)”.- EU Project Recommendations for Design of Offshore Wind Turbines. • “Guidelines for Health & Safety in the industry”.- BWEA Operational Safety Rules Group. • “The Health and Safety Risks an Regulatory Strategy Related to Energy Developments”.- UK Health and Safety Executive (HSE). • “DS/EN 50308 Wind turbines - Protective measures - Requirements for design, operation and maintenance”.- Dansk Standard. • “ANSI Z-10 Occupational Health and Safety Management System”.- American National Standards Institute (ANSI). • “CAP 437 Offshore Helicopter Landing Areas – Guidance on Standards”.- Civil Aviation Authority UK. • “OS-E401 Helicopter decks”.- DNV. Lack of Offshore Wind Accessibility rules and standards Guidelines and recommendations “to perform controlled access and transfer of personnel to and from offshore structures” Identify necessary protection & transfer equipments, guidelines for maintenance works & for fast crew boats and their operators, etc.  Create a PROPER STANDARD FOR OWF Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  5. STATE OF ART OF OFFSHORE ACCESS SYSTEMS ACCESS & TRANSFER SYSTEMS MARINE ACCESS • MONOHULL WORKBOATS • CATAMARAN WORKBOATS • SWATH WORKBOATS Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  6. UTILITY HELICOPTER: • Cruise speed: • 155 knots • Wind speed acceptance: • 40-50 knots • Payload capacity: • 1 ton • Personnel capacity: • 4 persons • Consume (cruise speed): • 190-220 kilos/hour • OFFSHORE TRANSPORT • HELICOPTER: • Cruise speed: • 140 knots • Wind speed acceptance: • 40-50 knots • Payload capacity: • 5 ton • Personnel capacity: • 19 persons • Consume (cruise speed): • 500 kilos/hour STATE OF ART OF OFFSHORE ACCESS SYSTEMS ACCESS & TRANSFER SYSTEMS AERIAL ACCESS • UTILITY HELICOPTER • OFFSHORE TRANSPORT HELICOPTER Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  7. ACCESS & TRANSFER SYSTEMS STATE OF ART OF OFFSHORE ACCESS SYSTEMS - CHARTS Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  8. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS FENDERING SYSTEMS • Personnel capacity: 1 person each • Load capacity: 100-150 kg + additional workboat hoist device capacity • Wave induced movement compensation? Boat compensation + boat engine force • Wave height acceptance (Hs) : Boat acceptance (1m - 2,5m) • Special needs: Workboat bow design Offshore structure design Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  9. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS GANGWAY DOCKING SYSTEMS • OFFSHORE ACCESS SYSTEM (OAS) – Offshore Solutions BV • Personnel capacity: 3 persons • Load capacity: 300 kg • Gangway size (length x width): 17,5 m x 0,8 m • Wave induced movement compensation? Heave compensation • Wave height acceptance (Hs): 2,5 m • Special needs: 23 ton payload DP2 vessel Offshore structure design (vertical pole & deck) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  10. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS GANGWAY DOCKING SYSTEMS • OFFSHORE TRANSFER SYSTEM (OTS) – Offshore Solutions BV (Prototype) • Personnel capacity: 3 persons • Load capacity: 300 kg • Gangway size (length x width): 9 m x 0,6-0,8 m • Wave induced movement compensation? No • Wave height acceptance (Hs): 1,5 m • Special needs: Offshore structure design (vertical pole ) 4,2 ton payload vessel Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  11. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS GANGWAY DOCKING SYSTEMS • WATERBRIDGE TURBINE– IHC Engineering Business (*) • Personnel capacity: 1 person • Load capacity: 150 kg • Gangway length : 8 m • Wave induced movement compensation? No • Wave height acceptance (Hs): 2,5 m • Special needs: Minimal modifications in the offshore structure (*) Included in WaterBridge solutions family: WB Turbine, WB Seal-slide, WB Barge and WB Platform Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  12. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS PERSONNEL CARRIERS • PTS – Personnel Transfer System (Preproduction) • Personnel capacity: 1 person • Load capacity: 500 kg • Weight: 4,5 ton • Wave induced movement compensation? Full heave compensation (6 metres distance range) (*) • Wave height (Hs)/ wind speed acceptance: 3 m / 18 m/s • Special needs: Vessel able to sail and hold position in 3m wave height seas (*) A project specific version is also available (without compensation): load capacity: 2-5 ton; range max: 8 m; wave height: 1,5 m) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  13. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS PERSONNEL CARRIERS • FROG, TORO (combined with Vessel Based Lift Facility) – Reflex Marine (*) (**) • Personnel capacity: 1-4 persons • Wave induced movement compensation? Yes, with a compensated crane structure (for roll and pitch planes) • Wave height (Hs) and wind speed acceptance : Depends on crane and vessel wave height acceptance • Special needs: DP II vessel preferable Compensated crane structure (*) Transfer capsule: production stage, Lifting arrangement: concept stage. (**)Two more concept variations: Turbine based lift gear and Capsule based lift gear. Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  14. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS FULL COMPENSATED SYSTEMS • AMPELMANN – Ampelmann Operations BV • Dimensions (Width x Depth x Height) 8 m x 8 m x 8 m (+ 12 m gangway) • Payload capacity: 240 kg (at 20 m range) • Wave induced movement compensation? Yes, 6-DOF (2,4 m, 10º) • Wave height acceptance (Hs): 2,5 m-3 m (depending on vessel size) • Wind speed acceptance : 35 knots • Special needs: Minimum 25 m beam vessel (80 m preferred) 32 ton payload vessel (Ampelmann weight) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  15. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS FULL COMPENSATED SYSTEMS • MOMAC OFFSHORE TRANSFER SYSTEM (MOTS) – MOMAC (Testing stage) • Dimensions (Length x Wide x Height) 4 m x 1,8 m x 4,5 m • Payload capacity: 400 kg • Wave induced movement compensation? Yes, vessel is led to the turbine by a roller fender in X and Y axle. In Z axle 3,2 m • Wave height acceptance (Hs): Depends on the used vessel (2,5 m with a 35 m vessel) • Special needs: Minimum 5 ton payload vessel (MOTS weight) Roller fender system to led the vessel to the boat-landing Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  16. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS ACCESS & TRANSFER SYSTEMS OTHER ACCESS METHODS • SELSTAIR – Viking Life • WINDLIFT – Fr. Fassmer GmbH • BOAT ACCESS SYSTEM – Caley Ocean Systems • SLILAD - Momac Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  17. STATE OF ART OF OFFSHORE TRANSFER SYSTEMS - CHARTS ACCESS & TRANSFER SYSTEMS Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  18. RESULTS COMPARISION AND ASSESSMENT CRITERIA FOR ACCESS CLASIFICATION ACCORDING TO SITE FEATURES (-)  Impossible to deliver the service O  Can deliver the service with poor effectiveness OO Can deliver the service with medium effectiveness OOO  Can deliver the service with good effectiveness Main used variables: - Wave Hs (marine) - Wind speed (aerial) • METOCEAN CONDITIONS (Beaufort scale) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  19. RESULTS COMPARISION AND ASSESSMENT CRITERIA FOR ACCESS CLASIFICATION ACCORDING TO SITE FEATURES (-)  Impossible to deliver the service O  Can deliver the service with poor effectiveness OO Can deliver the service with medium effectiveness OOO  Can deliver the service with good effectiveness Main used variables: - Access speed - Wave acceptance - Range • DISTANCE TO COAST (d) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  20. RESULTS COMPARISION AND ASSESSMENT CRITERIA FOR ACCESS CLASIFICATION ACCORDING TO SITE FEATURES (-)  Impossible to deliver the service O  Can deliver the service with poor effectiveness OO Can deliver the service with medium effectiveness OOO  Can deliver the service with good effectiveness Main used variables: - Load capacity - Personnel capacity • LOAD CAPACITIES (according with cargo/personnel transportation) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  21. RESULTS COMPARISION AND ASSESSMENT CRITERIA FOR TRANSFER CLASIFICATION ACCORDING TO SITE FEATURES (-)  Impossible to deliver the service O  Can deliver the service with poor effectiveness OO Can deliver the service with medium effectiveness OOO  Can deliver the service with good effectiveness Main used variables: - Wave Hs (marine) - Wind speed (aerial) Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw) • METOCEAN CONDITIONS (Beaufort scale)

  22. RESULTS COMPARISION AND ASSESSMENT CRITERIA FOR TRANSFER CLASIFICATION ACCORDING TO SITE FEATURES • LOAD CAPACITIES (according with cargo/personnel transportation) (-)  Impossible to deliver the service O  Can deliver the service with poor effectiveness OO Can deliver the service with medium effectiveness OOO  Can deliver the service with good effectiveness Main used variables: - Load capacity - Personnel capacity Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  23. CONCLUSIONS • There´s a need of a PROPER OFFSHORE WIND ACCESS STANDARD • Make a good Definition of O&M needs and a good Site characterization • Make a good simulation of project lifecycle through statistical methodologies • Balance correctly Access times & average vs Costs • Design the access system from the project start point  No surprises!!! • Do not forget any system requirements !!! • Choose the right system for the right place !!! Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  24. ACKNOWLEDGEMENTS & GRATTITUDES Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

  25. Any Questions? ThankYouVeryMuchforyourattention!! jaez@iberdrola.es

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