1. 22nd April, 2010, “Offshore access, safety and standards”
26 junio 2002
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
26 junio 2002
INTRODUCTION
BACKGROUND
ACCESS & TRANSFER SYSTEMS
RESULTS
DISCUSSION
Ladies and gentleman, first of all I would like to thank the European Wind Energy Conference & Exhibition for the opportunity given to Iberdrola Ingeniería y Construcción to participate into the Offshore Access, Safety and Standards conference track letting us to show our idea of how offshore accessibility must be taking into account as a key driver to increase offshore wind farms efficiency.
CONCLUSIONS
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

3. INTRODUCTION OWF Efficiency  (Energy yield, CAPEX, OPEX) vs Incomes
26 junio 2002
INTRODUCTION
OWF Efficiency  (Energy yield, CAPEX, OPEX) vs Incomes
OWF Availability  (Accessibility + Reliability)
If we talk about OWF efficiency we are calculating the ratio between the energy production, I mean, the energy yield balance of the OWF, and the total invest of that OWF, CAPEX and OPEX included.
(clic)
So, it seems to be clear that only maximizing the production of the OWF it will be possible to increase OWF efficiency and this point can be only achieved if the OWF is available to generate energy as longer as possible.
Taking into account the appearance of faults in a OWF within it's lifecycle (depending on its reliability actually), it will be crucial to repair these faults as soon as possible which means that...
( CLIC)
...accessing to the OWF can be assumed as a key driver, returning to the begin of this slide, to increase OWF efficiency.
30 segundos.
- Offshore Wind Farm (OWF) efficiency  Energy production (Energy yield balance) versus Total invest (CAPEX+OPEX)
- High energy production is only possible with high OWF availability level
- High availability level in hostile environment (offshore environment) is only possible with high accessibility level
- Key driver to increase OWF efficiency: ACCESIBILITY (Choose the optimum solutions to access to the OWF and the best systems to perform the transfer operations to access the offshore structures for each project site)
- Target Perform a deep analysis on existing technologies
Key driver to increase OWF efficiency: ACCESIBILITY (Choose the optimum solutions to access to the OWF and the best systems to perform the transfer operations to access the offshore structures for each project site)
ACCESSIBILITY  KEY DRIVER
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

4. Lack of Offshore Wind Accessibility rules and standards
26 junio 2002
BACKGROUND
CERTIFICATION AND CLASSIFICATION STANDARDS FOR OFFSHORE WIND ACCESIBILITY
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 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 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”
Meter video Acceso Chungo
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. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE ACCESS SYSTEMS
ACCESS SYSTEMS
MONOHULL
CATAMARAN
SWATH
Length m 15 20 25
Beam 5 7
Draft 1
0,9
2,7
Displacement
ton 28
125
Engine power kW
1.500
750
1.580
Speed (service / max) kt
20 / 24
25 / 28
15 / 18
Fuel consumption
l/h
220
150
300
Wave height acceptance
1,5 2
3,5
Load capacity
2,5 3
Personnel capacity # 8 12
MARINE ACCESS
MONOHULL WORKBOATS
CATAMARAN WORKBOATS
SWATH WORKBOATS
Meter Video SWATH + CATAMARAN
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

6. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE ACCESS SYSTEMS
AERIAL ACCESS
UTILITY HELICOPTER
OFFSHORE TRANSPORT HELICOPTER
UTILITY HELICOPTER:
Cruise speed:
155 knots
Wind speed acceptance:
40-50 knots
Payload capacity:
1 ton
Personnel capacity:
4 persons
Consume (cruise speed):
kilos/hour
OFFSHORE TRANSPORT
HELICOPTER:
140 knots
5 ton
19 persons
500 kilos/hour
1 minuto
Distincion:
Hablar de la distinción entre Utility helicopters y offshore transport helicopters según su funcionalidad.
Fotos + cuadro de 2 columnas con las características de cada tipo.
Utility
Offshore transport
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

7. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE ACCESS SYSTEMS - CHARTS
1 minuto
Distincion:
Hablar de la distinción entre Utility helicopters y offshore transport helicopters según su funcionalidad.
Fotos + cuadro de 2 columnas con las características de cada tipo.
Utility
Offshore transport
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

8. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE TRANSFER SYSTEMS
FENDERING SYSTEMS
Personnel capacity:
1 person each
Load capacity:
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
30 segundos
Directamente 2 fotos de barco accediendo a un aerogenerador y cuadro con las características del método.
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

9. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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)
1 minuto (hay tres: OAS, OTS y WaterBridge: unos 20 seg. cada una)
Con el formato que esta, nombre del disposito/empresa + las características y la foto al lado.
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

10. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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
1 minuto (hay tres: OAS, OTS y WaterBridge: unos 20 seg. cada una)
Con el formato que esta, nombre del disposito/empresa + las características y la foto al lado.
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

11. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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
1 minuto (hay tres: OAS, OTS y WaterBridge: unos 20 seg. cada una)
Con el formato que esta, nombre del disposito/empresa + las características y la foto al lado.
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

12. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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)
1 minuto (hay dos: PTS y Frog/Toro, unos 20 seg. cada uno)
Foto + cuadro de características
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

13. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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.
1 minuto (hay dos: PTS y Frog/Toro, unos 20 seg. cada uno)
Foto + cuadro de características
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

14. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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)
1 minuto (hay dos, Ampelmann y MOTS, unos 30s cada uno)
Foto + cuadro
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

15. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE 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
1 minuto (hay dos, Ampelmann y MOTS, unos 30s cada uno)
Foto + cuadro
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

16. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE TRANSFER SYSTEMS
OTHER ACCESS METHODS
SELSTAIR – Viking Life
WINDLIFT – Fr. Fassmer GmbH
BOAT ACCESS SYSTEM – Caley Ocean Systems
SLILAD - Momac
1 minuto (Selstair, WindLift y Caley Solution, unos 20 segundos cada uno)
Cuadro + foto de cada uno.
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

17. ACCESS & TRANSFER SYSTEMS
26 junio 2002
STATE OF ART OF OFFSHORE TRANSFER SYSTEMS - CHARTS
1 minuto (Selstair, WindLift y Caley Solution, unos 20 segundos cada uno)
Cuadro + foto de cada uno.
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

18. RESULTS
COMPARISION AND ASSESSMENT CRITERIA FOR ACCESS CLASIFICATION ACCORDING TO SITE FEATURES
METOCEAN CONDITIONS (Beaufort scale)
ACCESS SYSTEMS
MC= 0-4 BS
MC = 5 BS
MC = 6 BS
MC > 6 BS
MONOHULL
OOO -
CATAMARAN OO
SWATH O
HELICOPTER
(-)  Impossible to deliver the service
Main used variables:
O  Can deliver the service with poor effectiveness
- Wave Hs (marine)
OO Can deliver the service with medium effectiveness
- Wind speed (aerial)
OOO  Can deliver the service with good effectiveness
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

19. RESULTS
26 junio 2002
COMPARISION AND ASSESSMENT CRITERIA FOR ACCESS CLASIFICATION ACCORDING TO SITE FEATURES
DISTANCE TO COAST (d)
ACCESS SYSTEMS
d ≈ 10 km
d ≈ 20 – 40 km
d >> 50 km
MONOHULL
OOO OO O
CATAMARAN
SWATH
HELICOPTER
Criterios utilizados:
Velocidad y consumo frente al coste del sistema de acceso.
(-)  Impossible to deliver the service
Main used variables:
O  Can deliver the service with poor effectiveness
- Access speed
OO Can deliver the service with medium effectiveness
- Wave acceptance
OOO  Can deliver the service with good effectiveness
- Range
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

20. HELICOPTER (TRANSPORT)
RESULTS
COMPARISION AND ASSESSMENT CRITERIA FOR ACCESS CLASIFICATION ACCORDING TO SITE FEATURES
LOAD CAPACITIES (according with cargo/personnel transportation)
ACCESS SYSTEMS
< 8 persons
< 1 ton
8 – 10 persons
1 – 2,5 tons
> 10 persons
> 2,5 tons
MONOHULL
OOO -
CATAMARAN O OO
SWATH
HELICOPTER (UTILITY)
HELICOPTER (TRANSPORT)
(-)  Impossible to deliver the service
Main used variables:
O  Can deliver the service with poor effectiveness
- Load capacity
OO Can deliver the service with medium effectiveness
- Personnel capacity
OOO  Can deliver the service with good effectiveness
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

21. RESULTS
COMPARISION AND ASSESSMENT CRITERIA FOR TRANSFER CLASIFICATION ACCORDING TO SITE FEATURES
METOCEAN CONDITIONS (Beaufort scale)
TRANSFER SYSTEMS
MC= 0-4 BS
MC = 5 BS
MC = 6 BS
FENDERING
OOO -
OAS O OO
OTS (prototype)
WATERBRIDGE
PTS (prototype)
AMPELMANN
MOTS (prototype)
(-)  Impossible to deliver the service
Main used variables:
O  Can deliver the service with poor effectiveness
- Wave Hs (marine)
OO Can deliver the service with medium effectiveness
- Wind speed (aerial)
OOO  Can deliver the service with good effectiveness
Iberdrola Ingeniería y Construcción - EWEC 2010 (Warsaw)

22. RESULTS
COMPARISION AND ASSESSMENT CRITERIA FOR TRANSFER CLASIFICATION ACCORDING TO SITE FEATURES
LOAD CAPACITIES (according with cargo/personnel transportation)
TRANSFER SYSTEMS
1 person kg
2-3 persons kg
> 3 persons
> 300 kg
FENDERING
OOO OO O
OAS
OTS (prototype)
WATERBRIDGE
PTS (prototype) -
AMPELMANN
MOTS (prototype)
(-)  Impossible to deliver the service
Main used variables:
O  Can deliver the service with poor effectiveness
- Load capacity
OO Can deliver the service with medium effectiveness
- Personnel capacity
OOO  Can deliver the service with good effectiveness
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. Thank You Very Much for your attention!!
Any Questions?
Thank You Very Much for your attention!!