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Annual Production: - GW
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Water Depth: - m
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Offshore Wind Statistics

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Commissioned Sites by Developer/Owner

Operator Sites
DONG Energy 13
Vattenfall 7
E.ON 4

Comissioned Sites by turbine manufacturer

Turbine Manufacturer Sites
Siemens Wind Power 17
Vestas Wind Systems 16.83
Bonus Energy 4.83

Installed Capacity by Country

Country MW %
United Kingdom 3,309.2 63.76
Denmark 871.45 16.79
Netherlands 246.8 4.76

Installed Capacity by commissioned site

Site MW
London Array 1 630
Greater Gabbard 504
Sheringham Shoal 316.8

Installed Capacity by Operator

Operator MW %
DONG Energy 1,793.25 34.55
Vattenfall 830.9 16.01
SSE Renewables 514 9.9

Installed Capacity & Number of Turbines by turbine manufacturer

Manufacturer
Model
 MW %
Siemens Wind Power
Siemens SWT-3.6-107
Siemens SWT-3.6-120
Siemens SWT-2.3-93
Siemens SWT-2.3-101
Siemens SWT-2.3-82 VS
3,003.9
1,551.6
824.4
575
50.6
2.3
57.88
29.9
15.88
11.08
0.97
0.04
Vestas Wind Systems
Vestas V90-3.0 MW
Vestas V80-2.0 MW
Vestas V39-500 kW
Vestas V66-2.0 MW
Vestas V47-660 kW
1,393.32
957
426
5
4
1.32
26.85
18.44
8.21
0.1
0.08
0.03
Bonus Energy
Bonus 2.3 MW/82
Bonus 2.0 MW/76
Bonus 450 kW/37
245.05
200.1
40
4.95
4.72
3.86
0.77
0.1
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Walney 2 Offshore Wind Farm

General Information

Official Name: Walney 2
Alternative Name: Wowind 2
Development Status: Commissioned
Area of Wind Farm: 39 km2
Number of Rows/Turbines: 1 x 10 turbines, 2 x 9 turbines, 2 x 8 turbines, 1 x 7 turbines
Distance Between Rows/Turbines: 875 m / 749-959 m, 875 m / 749-959 m, 875 m / 749-959 m, 875 m / 749-959 m
Location: Walney Island/Barrow-in-Furness
Region: Cumbria
Country: United Kingdom
Sea Name: Irish Sea
GPS Latitude: 54.0688
GPS Longitude: -3.5807
Distance From Shore: 21-26 km
Water Depth: 8 m
Generel Note: Round 2 site

Timeline & Track Records

Project Start: 2006 (March) - Application submitted
2007 (November) - Project consented
2009 (June) - Geotechnical investigations
Construction Start: 2011 (March) - Foundations
First Power Generation: 2011 (November)
Commission Year: 2012 (March)
Developer: Walney (UK) Offshore Wind Farms - owned by DONG Energy (50.1%), SSE Renewables (25.1%), OPW (24.8%)
Installer Turbines: Seajacks
Installer Substructure: Ballast Nedam - Monopiles
GeoSea - Transition pieces. Part of DEME Group
Installer Inter-Array Cables: Visser & Smit Marine Contracting (VSMC) - Laying and burial
Offshore Marine Management (OMM) - Termination and testing of the array cables
Installer Export Cables: Visser & Smit Marine Contracting (VSMC) - Laying and burial
Installer Offshore Substation: Scaldis Salvage & Marine Contractors - Topside and foundation
Volker Staal en Funderingen - Post-pilling
Operator: DONG Energy
TSO: National Grid

Wind & Waves

Average Wind Speed: 9.3 m/s at 80 m

Production & Performance

Total Installed Capacity: 183.6 MW
Total Number of Turbines: 51
Annual Estimated Production: 663 GWh/year
Annual Production: 25.07 GWh in 2011

Substations, Inter-Array & Export Cables

Transmission Type: MVAC / HVAC / HVAC
Operating Voltage Level: 33 kV / 132 kV / 400 kV
Inter-Array Radials: 2 radials with 10 turbines / 1 radial with 9 turbines / 1 radial with 8 turbines / 1 radial with 7 turbines / 1 radial with 3 turbines
Inter-Array Cable Type: Draka 33 kV XLPE / Draka 33 kV XLPE
Conductor Size: 3 x 150 mm2 / 3 x 500 mm2
Length: 29 km / 15 km
Total Length: 44 km
Inter-Array Description: 36 pcs of 33 kV ICC array cables and 16 pcs of 33 kV PCC array cable. ICC: Diameter 104 mm, minimum bending radius 1,6 m, non-coilable, weight in air. 15 kg/m. PCC: Diameter 139 mm, minimum bending radius 2,1 m, non-coilable, weight in air: 34 kg/m
Transformers: 2 x 120 MVA
Electrical Components Supplier: AREVA T&D - MV switchgear. Now Alstom Grid
ABB - Transformers and HV switchgear. Now Alstom Grid
Support Structure Type: Jacket
Foundation Type: Piled
Offshore Structure Manufacturer: Bladt Industries - Topside and jacket foundation
Offshore Substation Description The offshore substation has 4 decks. Height: 35 m above sea level. Dimensions: 13x23. Weight: 1,300 t
Export Cable Type: Prysmian 132 kV
Conductor Size: 3 x 630 mm2
Total Length: 43.7 km
Burial Depth: 2 m
Power Frequency: 50 Hz
Export Cable Landfall: Cleveleys, Cumbria (United Kingdom)
Onshore Substation Location: Stanah/Hillhouse, Cumbria (United Kingdom)
Onshore Substation Description: The subsea export cable is extended with 3 single core 132 kV underground cables of 5 km to connect the wind farm to the onshore substation

Turbine, Tower & Substructure

Turbine:  
Turbine Manufacturer: Siemens Wind Power
Turbine Model: Siemens SWT-3.6-120
Number of Turbines: 51
Rated Power pr. Turbine: 3.6 MW
Estimated Watt pr. Rotor m2: 318 watt
Operational:  
Cut-in Wind Speed: 4 m/s
Rated Wind Speed: 12.5 m/s
Cut-out Wind Speed: 25 m/s
Power Curve Data:

Show power curve data

25.0 m/s - 3600 KW
24.0 m/s - 3600 KW
23.0 m/s - 3600 KW
22.0 m/s - 3600 KW
21.0 m/s - 3600 KW
20.0 m/s - 3600 KW
19.0 m/s - 3600 KW
18.0 m/s - 3600 KW
17.0 m/s - 3600 KW
16.0 m/s - 3600 KW
15.0 m/s - 3600 KW
14.0 m/s - 3600 KW
13.0 m/s - 3596 KW
12.0 m/s - 3567 KW
11.0 m/s - 3399 KW
10.0 m/s - 2910 KW
9.0 m/s - 2204 KW
8.0 m/s - 1544 KW
7.0 m/s - 1026 KW
6.0 m/s - 635 KW
5.0 m/s - 351 KW
4.0 m/s - 161 KW
3.0 m/s - 0 KW
2.0 m/s - 0 KW
1.0 m/s - 0 KW
0.0 m/s - 0 KW
Rotor & Hub:  
Rotor Type: 3-bladed, horisontal axis
Rotor Position: Upwind
Rotor Diameter: 120 m
Rotor Area: 11310 m2
Rotor Speed (min): 5 rpm
Rotor Speed (rated): 13 rpm
Rotor Weight (incl. hub): 101 t
Hub Height (above MSL): 90 m
Blade Tip Speed (rated): 81.68 m/s
Blade Tip Height (above MSL): 150 m
Blade Length: 58.5 m
Blade Root Chord (root diameter): 4.2 m
Weight pr. Blade: 18 t
Power Regulation: Pitch regulated with variable speed (hydraulic)
Blade Model - Name: B58
Nacelle:  
Drive Train Type: High speed
Main Bearing: Spherical roller bearing
Gearbox Ratio: 1:119
Gearbox Stages: 3 planetary stages, 1 helical stage
Gearbox Lubrication: Forced lubrication
Generator Type: Asynchronous
Generator Rated Power: 3600 kW
Generator Number of Poles: 4 poles
Power Converter: Full scale
Power Converter Location: Nacelle
Power Frequency: 50 Hz
Turbine Voltage Level: 690 V
Transformer Voltage Level: 33 kV
Transformer Location: Tower
Yaw Gears - Number: 6
Nacelle Weight: 142 t
Top Head Mass: 243 t
Tower:  
Structure Type: Tubular
Structure Material: Steel
Weight: 260 t
Substructure:  
Structure Type: Monopiles
Number of Support Structures: 51
Support Structure Material: Steel
Transition Piece Structure Description: Diameter: 6.5 m. Length: up to 24 m. Weight: up to 300 t
Support Structure Description: Length: up to 68 m. Weight: up to 805 t
Foundation Type: Piled
Substructure Manufacturer: Erndtebrücker Eisenwerk (EEW) - Monopiles and transition pieces
Bladt Industries - Transition pieces

Resources

Website: Walney 2 Offshore Wind Farm (Walney)
Walney 2 Offshore Wind Farm (DONG Energy)
 
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