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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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Blyth Offshore Wind Farm

General Information

Official Name: Blyth
Development Status: Commissioned
Number of Rows/Turbines: 1 x 2 turbines
Location: Blyth
Region: Northumberland
Country: United Kingdom
Sea Name: North Sea
GPS Latitude: 55.1361
GPS Longitude: -1.4899
Distance From Shore: 1.6 km
Water Depth: 6-11 m
Tidal Range: 5 m
Generel Note: Round 1 site

Timeline & Track Records

Project Start: 1994 - Project idea
2000 - All consents and licences approvel
Construction Start: 2000 (July) - Foundations
First Power Generation: 2000 (November)
Commission Year: 2000 (December)
Developer: Blyth Offshore Wind - owned by E.ON (100%)
Installer Turbines: Fugro Seacore
Installer Substructure: Fugro Seacore
Installer Inter-Array Cables: Global Marine Systems
Installer Export Cables: Global Marine Systems
Operator: E.ON
TSO: National Grid
Total Project Cost: 4.6 mio €

Production & Performance

Total Installed Capacity: 4 MW
Total Number of Turbines: 2
Annual Production: 6.51 GWh in 2012

Show previous years

5.48 GWh in 2011
4.88 GWh in 2010
6.73 GWh in 2009
Capacity Factor: 18.58 % in 2012

Show previous years

15.63 % in 2011
13.94 % in 2010
19.22 % in 2009

Substations, Inter-Array & Export Cables

Transmission Type: MVAC
Operating Voltage Level: 11 kV
Inter-Array Radials: 1 radial with 2 turbines
Inter-Array Cable Type: Prysmian 11 kV XLPE
Conductor Size: 3 x 70 mm2 (Cu)
Length: 0.5 km
Export Cable Type: Prysmian 11 kV XLPE
Conductor Size: 3 x 70 mm2 (Cu)
Length: 2.5 km
Burial Depth: 1-2 m
Export Cable Description: The two turbines are connected directly to the onshore substation in Blyth
Power Frequency: 50 Hz
Export Cable Landfall: Blyth harbour, Northumberland (United Kingdom)
Onshore Substation Location: Blyth, Northumberland (United Kingdom)

Turbine, Tower & Substructure

Turbine:  
Turbine Manufacturer: Vestas Wind Systems
Turbine Model: Vestas V66-2.0 MW
Number of Turbines: 2
Rated Power pr. Turbine: 2 MW
Estimated Watt pr. Rotor m2: 585 watt
Operational:  
Cut-in Wind Speed: 4 m/s
Rated Wind Speed: 17 m/s
Cut-out Wind Speed: 25 m/s
Operational Temperature: -20°C to 40°C
Rotor & Hub:  
Rotor Type: 3-bladed, horisontal axis
Rotor Position: Upwind
Rotor Diameter: 66 m
Rotor Area: 3421 m2
Rotor Speed (min): 10.5 rpm
Rotor Speed (rated): 21.3 rpm
Rotor Speed (max): 24.5 rpm
Rotor Weight (incl. hub): 23 t
Hub Height (above MSL): 67 m
Blade Tip Speed (rated): 73.61 m/s
Blade Tip Speed (max): 84.67 m/s
Blade Tip Height (above MSL): 95 m
Power Regulation: Pitch/OptiSpeed™ (hydraulic)
Nacelle:  
Drive Train Type: High speed
Gearbox Stages: 1 planetary stage, 2 spur stages
Generator Type: DFIG
Generator Rated Power: 2000 kW
Generator Number of Poles: 4 poles
Power Converter: Rotor
Power Frequency: 50 Hz
Turbine Voltage Level: 690 V
Nacelle Weight: 57 t
Top Head Mass: 80 t
Tower:  
Structure Type: Tubular
Structure Material: Steel
Weight: 159 t
Substructure:  
Structure Type: Monopiles
Number of Support Structures: 2
Support Structure Material: Steel
Foundation Type: Piled
Foundation Structure Description: The monopiles are drilled and grouted into 3.8 m diameter holes and with a dept of 12-15 m into the rocky seabed
Substructure Designer: LICengineering

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