Energy Type | Wind |
System Type | Floating Foundation |
Subtype | Mono-column |
Location | Europe - North Sea |
Hs (design) | 12.7 m |
Water Depth | 105.0 m |
Turbine Power Rating | 6.0 MW |
Number of Platforms | 5 |
Distance to Shore | 25.0 km |
Type Substation | |
Number of Substations | 0 |
Platforms: | |
Payload | 726 mt |
Hull Displacement | 11,488 mt |
Turbine: | |
Hub Height | 95.3 m |
Rotor Diameter | 133.5 m |
Turbine Base Diameter | 6.8 m |
Platform Cost (avg) | $51.7 million |
Substations: | |
Type Substation | |
Wind Farm: | |
Total Power | 30.0 MW |
Number of rows | 1 |
Number of columns | 5 |
Row spacing (8D) | 1,068 m |
Col spacing (6D) | 801 m |
Transmission System | |
Platform Cost (total) | $258.5 million |
Substation Cost (total) | $0.0 million |
Trans Sys Cost (total) | $43.2 million |
Wind Farm Cost (total) | $301.7 million |
Project Duration | 47.4 months |
Column Diameter | 13.3 m |
Column Height | 96.1 m |
Draft | 81.0 m |
Freeboard | 15.1 m |
Activity | Type or Location |
Platform Fabrication Location | Spain |
Platform Fabrication Type | land skidways |
Platform Loadout Type | loadout to barge |
Platform Tow Preparation | float-off barge / float-on transport vessel |
Platform Ocean Transport | dry transport to offshore site (2,408 km) |
Platform Offload Type | float-off transport vessel |
Platform Special Activity | hull upend at site |
Turbine Installation | offshore lift |
Mooring Fabrication Location | N Europe |
Component | Payload (mt) | Weight (mt) | Avg Cost Each ($m) | Cost Total ($m) |
Development | 0.6 | 3.2 | ||
Engineering | 2.3 | 11.7 | ||
Turbine | 726 | 726 | 10.7 | 53.5 |
Hull | 2,909 | 18.9 | 94.7 | |
Fixed ballast | 1.9 | 9.4 | ||
Mooring (incl transportation) | 1.6 | 8.0 | ||
Transportation (platform) | 0.3 | 1.5 | ||
Installation (incl turbine) | 10.1 | 50.4 | ||
Offshore HUC | 0.5 | 2.4 | ||
Financing (platforms) | 4.7 | 23.6 | ||
Wind Platform Total | 726 | 3,634 | 51.7 | 258.5 |
MVAC Intrafield Cables | 0.0 | |||
Cables to Shore | 0.0 | |||
Onshore Equipment | 0.0 | |||
Financing (transmission system) | 0.0 | |||
Transmission System Total | 43.2 | |||
Wind Farm Total | 301.7 |
Milestone / Activity | Start (months) | Duration (months) | End (months) | Activity Display |
Project Start | 0.0 | ∇ |
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Pre-FEED | 0.0 | 12.0 | 12.0 | |
FEED | 12.0 | 9.0 | 21.0 | |
Issue Bid | 21.0 |
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Bid, Solicit, Award | 21.0 | 6.0 | 27.0 | |
Project Sanction | 26.0 |
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Award Contracts | 27.0 |
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Detailed Engineering | 21.0 | 12.0 | 33.0 | |
Topsides Equipment and Turbine Procurement (1st platform) | 27.0 | 12.0 | 39.0 | |
Platform Fabrication (1st platform) | 27.0 | 11.1 | 38.1 | |
Platform Loadout (1st platform) | 38.1 | 0.9 | 39.0 | |
Platform Sailaway | 39.0 |
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Platform Transportation (1st platform) | 39.0 | 0.7 | 39.7 | |
Mooring System Procurement (1st platform) | 27.0 | 14.8 | 41.8 | |
Mooring System Installation (1st platform) | 41.8 | 0.1 | 41.9 | |
Platform Installation (1st platform, incl hull upend) | 41.9 | 0.6 | 42.4 | |
Platform Stormsafe | 42.4 |
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Offshore Hook-up and Commissioning (1st platform) | 42.4 | 0.5 | 42.9 | |
Commercial Operation Date (Ready to Energize 1st platform) | 42.9 |
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Topsides Equipment and Turbine Procurement (remainder) | 39.0 | 0.9 | 39.9 | |
Platform Fabrication (remainder) | 38.1 | 6.8 | 44.9 | |
Platform Loadout and Transportation (remainder) | 39.7 | 6.8 | 46.4 | |
Mooring System Procurement (remainder) | 41.8 | 1.8 | 43.6 | |
Platform Installation (remainder - hull upend, mooring, platform, turbines) | 42.4 | 4.5 | 46.9 | |
Offshore Hook-up and Commissioning (remainder) | 42.9 | 4.5 | 47.4 | |
Ready to Energize last platform | 47.4 |
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Platform Displacement | Column Dimension | Span | Draft | Hull Wt | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Development Name | Using Actual Displacement | Using Specified Payloads | Using Advanced Relationships | Using Simple Relationships | Using Actual Displacement | Using Specified Payloads | Using Advanced Relationships | Using Simple Relationships | Using Actual Displacement | Using Specified Payloads | Using Advanced Relationships | Using Simple Relationships | Using Actual Displacement | Using Specified Payloads | Using Advanced Relationships | Using Simple Relationships | Using Actual Displacement | Using Specified Payloads | Using Advanced Relationships | Using Simple Relationships | |||||
WindFloat - 2 mw prototype | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |||||||||||||||||
WindFloat - 6 mw production | 1.00 | 1.00 | 1.01 | 1.01 | 0.98 | 0.98 | 0.98 | 0.98 | |||||||||||||||||
Hywind - 2.3 mw prototype | 1.00 | 1.00 | 1.24 | 1.24 | 0.66 | 0.66 | |||||||||||||||||||
Hywind - 6 mw production | 1.00 | 1.00 | 0.95 | 0.95 | 1.08 | 1.08 | |||||||||||||||||||
VLO Y-Wind 3 mw | 1.00 | 1.00 | 0.99 | 0.98 | 1.06 | 1.06 | 1.02 | 1.02 | |||||||||||||||||
VLO Y-Wind 5 mw | 1.00 | 0.95 | 1.01 | 0.99 | 0.95 | 0.93 | 0.99 | 0.97 | |||||||||||||||||
VLO Y-Wind 8 mw | 1.00 | 1.01 | 1.01 | 1.01 | 1.00 | 1.00 | 0.99 | 0.99 | |||||||||||||||||
Average | 1.00 | 0.99 | 1.03 | 1.02 | 1.00 | 0.99 | 0.96 | 0.96 | |||||||||||||||||
Standard Deviation | 0.02 | 0.09 | 0.10 | 0.04 | 0.05 | 0.14 | 0.14 |