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Offshore Wind Statistics

Commissioned Sites by Developer/Owner

Operator Sites
DONG Energy 14
Vattenfall 7
E.ON 4

Comissioned Sites by turbine manufacturer

Turbine Manufacturer Sites
Siemens Wind Power 18
Vestas Wind Systems 16.83
Bonus Energy 4.83

Installed Capacity by Country

Country MW %
United Kingdom 3,309.2 59.2
Denmark 1,271.05 22.74
Netherlands 246.8 4.42

Installed Capacity by commissioned site

Site MW
London Array 1 630
Greater Gabbard 504
Anholt 399.6

Installed Capacity by Operator

Operator MW %
DONG Energy 2,192.85 39.23
Vattenfall 830.9 14.87
SSE Renewables 514 9.2

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
3,403.5
1,551.6
1,224
575
50.6
2.3
60.89
27.76
21.9
10.29
0.91
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
24.93
17.12
7.62
0.09
0.07
0.02
Bonus Energy
Bonus 2.3 MW/82
Bonus 2.0 MW/76
Bonus 450 kW/37
245.05
200.1
40
4.95
4.38
3.58
0.72
0.09
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Gunfleet Sands 3 Demonstration Offshore Wind Farm

General Information

Official Name: Gunfleet Sands 3 Demonstration
Development Status: Installation in Progress
Area of Wind Farm: 1 km2
Location: Clacton-on-Sea
Region: East England
Country: United Kingdom
Sea Name: North Sea
GPS Latitude: 51.703
GPS Longitude: 1.191
Distance From Shore: 8.5 km
Water Depth: 5-12 m

Timeline & Track Records

Project Start: 2010 (December) - Application submitted
2012 (April) - Project consented
Construction Start: 2012 (May) - Onshore work started
2012 (July) - Foundation work started
Commission Year: 2012 (November)
Developer: DONG Energy Gunfleet Sands Demo (UK) - owned by DONG Energy (100%)
Installer Turbines: Ballast Nedam
Operator: DONG Energy
TSO: National Grid

Production & Performance

Total Installed Capacity: 12 MW
Total Number of Turbines: 2

Substations, Inter-Array & Export Cables

Transmission Type: MVAC
Operating Voltage Level: 33 kV
Inter-Array Radials: 1 radial with 2 turbines
Inter-Array Cable Type: JDR Cables 33 kV
Total Length: 3 km
Export Cable Type: JDR Cables 33 kV
Total Length: 9 km
Power Frequency: 50 Hz
Export Cable Landfall: Martello Bay, East England (United Kingdom)
Onshore Substation Location: Waterglade Retail Park, East England (United Kingdom)

Turbine, Tower & Substructure

Turbine:  
Turbine Manufacturer: Siemens Wind Power
Turbine Model: Siemens SWT-6.0-120
Number of Turbines: 2
Rated Power pr. Turbine: 6 MW
Estimated Watt pr. Rotor m2: 531 watt
Wind Class: IEC IA
Operational:  
Cut-in Wind Speed: 4 m/s
Rated Wind Speed: 13 m/s
Cut-out Wind Speed: 25 m/s
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): 11 rpm
Blade Tip Speed (rated): 69.12 m/s
Blade Length: 75 m
Power Regulation: Pitch regulated with variable speed (hydraulic)
Blade Model - Name: B75
Nacelle:  
Drive Train Type: Direct Drive
Generator Type: PMSG
Generator Rated Power: 6000 kW
Power Converter: Full scale
Power Frequency: 50 Hz
Turbine Voltage Level: 690 V
Top Head Mass: 360 t
Tower:  
Structure Type: Tubular
Structure Material: Steel
Substructure:  
Structure Type: Monopiles
Number of Support Structures: 2
Support Structure Material: Steel
Foundation Type: Piled
Substructure Manufacturer: Bladt Industries

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