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Offshore Wind Statistics

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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Irene Vorrink Offshore Wind Farm

General Information

Official Name: Irene Vorrink
Alternative Name: Wind Farm Dronten IJsselmeer
Development Status: Commissioned
Area of Wind Farm: 2 km2
Location: Lelystad
Region: Flevoland
Country: Netherlands
Sea Name: Lake IJsselmeer
GPS Latitude: 52.5989
GPS Longitude: 5.5886
Distance From Shore: 0.3 km
Water Depth: 1-2 m

Timeline & Track Records

Construction Start: 1996
Commission Year: 1997
Developer: Nuon
Installer Substructure: Ballast Nedam - Monopiles
Operator: Nuon - Owned by Vattenfall
TSO: TenneT (Netherlands)
Estimated Project Cost: 23.5 mio €

Production & Performance

Total Installed Capacity: 16.8 MW
Total Number of Turbines: 28

Turbine, Tower & Substructure

Turbine:  
Turbine Manufacturer: Nordtank - Now Vestas Wind Systems
Turbine Model: Nordtank NKT 600/43
Number of Turbines: 28
Rated Power pr. Turbine: 0.6 MW
Estimated Watt pr. Rotor m2: 433 watt
Rotor & Hub:  
Rotor Type: 3-bladed, horisontal axis
Rotor Position: Upwind
Rotor Diameter: 43 m
Rotor Area: 1452 m2
Rotor Speed (rated): 27 rpm
Rotor Weight (incl. hub): 26 t
Hub Height (above MSL): 50 m
Blade Tip Speed (rated): 60.79 m/s
Power Regulation: Stall
Blade Manufacturer: LM Wind Power
Blade Model - Name: LM 19.1
Nacelle:  
Drive Train Type: High speed
Generator Rated Power: kW
Top Head Mass: 26 t
Tower:  
Structure Type: Tubular
Structure Material: Steel
Height: 44.5 m
Substructure:  
Structure Type: Monopiles
Number of Support Structures: 28
Support Structure Material: Steel
Support Structure Description: Diameter: 3,515 m. Length: 23-23.5 m (19 pcs.) + 23.6-24.6 (9 pcs.). Weight: 60 t (19 pcs.) + 63 t (9 pcs.)
Foundation Type: Piled
Foundation Structure Description: The monopiles are driven into seabed
Substructure Main Contractor: Ballast Nedam

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