Search
Commissioned:
Installation in Progress: 
General Search:
Country:
Commission Year: - year
Installed Capacity: - MW
Annual Production: - GW
Capacity Factor: - %
Number of Turbines: -
Distance to Shore: - km
Water Depth: - m
Turbine Model:
Rated Power pr. Turbine: - MW
Drive Train:
Support Structure:

Offshore Wind Statistics

OceanWise

Read the latest issue!

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
You are here: lorc.dk  >  Knowledge  >  Offshore Wind Farms Map  >  Datasheet

London Array 1 Offshore Wind Farm

General Information

Official Name: London Array 1
Development Status: Commissioned
Area of Wind Farm: 100 km2
Number of Rows/Turbines: 1 x 13 turbines, 5 x 12 turbines, 2 x 11 turbines, 2 x 10 turbines, 3 x 9 turbines, 2 x 8 turbines, 1 x 6 turbines, 1 x 5 turbines, 1 x 3 turbines, 1 x 2 turbines, 1 x 1 turbine
Location: Thames Estuary
Region: Kent
Country: United Kingdom
Sea Name: North Sea
GPS Latitude: 51.6256
GPS Longitude: 1.4958
Distance From Shore: 19-20 km
Water Depth: 0-25 m
Generel Note: Round 2 site

Timeline & Track Records

Project Start: 2001 - Environmental studies
2003 - Lease agreement signed
2005 (June) - Application submitted
2007 (August) - Project consented
Construction Start: 2009 (July) - New onshore substation
2011 (March) - Foundations
Commission Year: 2013 (April)
Developer: London Array - owned by DONG Energy (50%), E.ON (30%), Masdar (20%)
Installer Turbines: MPI Offshore
A2SEA
Installer Substructure: MPI Offshore - Monopiles and transition pieces
A2SEA - Monopiles and transition pieces
Ballast Nedam - Monopiles
Installer Inter-Array Cables: Visser & Smit Marine Contracting (VSMC)
Global Marine Systems
Installer Export Cables: Visser & Smit Marine Contracting (VSMC)
Installer Offshore Substation: Scaldis Salvage & Marine Contractors - 2 x topsides
A2SEA - 2 x foundations
Bonn & Mees Drijvende Bokken - 2 x transition pieces
Operator: DONG Energy
TSO: National Grid
Estimated Project Cost: 2000 mio €

Production & Performance

Total Installed Capacity: 630 MW
Total Number of Turbines: 175

Substations, Inter-Array & Export Cables

Transmission Type: MVAC / HVAC / HVAC
Operating Voltage Level: 33 kV / 150 kV / 400 kV
Inter-Array Radials: 3 radials with 18 turbines / 3 radials with 17 turbines / 2 radials with 14 turbines / 1 radial with 13 turbines / 2 radials with 11 turbines / 1 radial with 7 turbines
Inter-Array Description: 6 radials from each offshore substation
Inter-Array Cable Type: JDR Cables 33 kV
Total Length: 209 km
Burial Depth: 1-2 m
Inter-Array Description: The inter-array cables measure between 650-1200 m in length and were supplied in 175 different lengths
Offshore Substations: 2
Electrical Components Supplier: Siemens Transmission and Distribution
Support Structure Type: Monopiles
Foundation Type: Piled
Offshore Structure Manufacturer: Iemants - 2 x topsides. Part of Smulders
Sif Group - 2 x foundations
Smulders - 2 x foundations
Offshore Structure Designer: Rambøll - Foundation
Offshore Substation Description The two substations are identical and have 3 decks, 20 x 20 m area each. Weight: 1250 t
Export Cable Type: 4 x Nexans 150 kV XLPE
Conductor Size: 3 x 660 mm2 (Cu)
Total Length: 220 km
Burial Depth: 1-2 m
Export Cable Description: The main length of the export has 660 mm2 conductors, which is increased to 800 mm2 conductors in the cable end
Power Frequency: 50 Hz
Onshore Substation Location: Cleve Hill, near Graveney, Kent (United Kingdom)

Turbine, Tower & Substructure

Turbine:  
Turbine Manufacturer: Siemens Wind Power
Turbine Model: Siemens SWT-3.6-120
Number of Turbines: 175
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): 87 m
Blade Tip Speed (rated): 81.68 m/s
Blade Tip Height (above MSL): 162 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
Yaw Gears - Number: 6
Nacelle Weight: 142 t
Top Head Mass: 243 t
Tower:  
Structure Type: Tubular
Structure Material: Steel
Tower Manufacturer: Voestalpine
Substructure:  
Structure Type: Monopiles
Number of Support Structures: 175
Support Structure Material: Steel
Transition Piece Structure Description: Diameter: 5 m. Length: 30 m. Weight: 350 t
Support Structure Description: Diameter: 4.7 or 5-7 m (two types of MPs). Length: up to 85 m. Weight: 650 t
Foundation Type: Piled
Foundation Structure Description: The MPs are hammered/driven up to 40 m into the seabed
Scour Protection: No scour protection used
Substructure Main Contractor: Aarsleff/Bilfinger Berger (ABJV)
Substructure Manufacturer: Bladt Industries - Monopiles and transition pieces
Erndtebrücker Eisenwerk (EEW) - Monopiles and transition pieces
Substructure Designer: COWI - Monopiles and transition pieces
IMS Ingenieurgesellschaft - Monopiles and transition pieces

Resources

Website: London Array 1 Offshore Wind Farm (Common)
London Array 1 Offshore Wind Farm (DONG Energy)
London Array 1 Offshore Wind Farm (E.ON)
 
Copyright and rights © 2011  -  Disclaimer
lorc.dk    Contact    Print    Sitemap