Latest event on East Anglia ONE

Navantia began cutting the steel for the first offshore substation at its Puerto Real shipyard. Read more

Latest Update: 21 March 2017

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Project Details for East Anglia ONE Database in Excel
Name East Anglia ONE correct
Other names East Anglia Array, Zone 5, Norfolk, EA ONE correct
Country name United Kingdom correct
Region England, East of England correct
Comments The EA zone has favourable conditions including relatively low water depths, convenient location near demand centres and good wind conditions .

The project supply chain plans references plans to use a small area (three to five turbine locations) of the EA1 Project as a demonstration site for turbines and foundations.
Round (or category) Round 3 correct
Development status Pre-Construction correct
Comments on the status correct
Notice any Errors? You can keep this an open resource by submitting corrections!
Project capacity 714 MW correct
Turbine model SWT-7.0-154 (Siemens) correct
Turbine capacity 7 MW correct
Number of turbines 102 correct
Total turbine height 197 m correct
Hub height 120.00 m correct
Rotor diameter 154 m correct
Foundation Grounded: Jacket (Piled) (Three legged jacket foundations. The foundations will weigh 845 tonnes and will stand at 65m tall.) correct
10 year mean wind speed (2000-2009) Available online now
Stated project cost GBP(mill) 2600.00 correct
Sea name North Sea, Southern North Sea (Thames) correct
Centre latitude 52.222° correct
Centre longitude 2.493° correct
Area 205 km2 correct
Depth range (Chart Datum) 30 m - 41 m correct
Depth range stated by developer 30 m - 42 m correct
Distance from shore (reported) 45.4 km correct
Distance from shore (computed from centre) 55.2 km correct
Installation base Great Yarmouth (Wind turbine pre-assembly and marshalling), BOW Terminal Vlissingen for foundations correct
Ops and maintenance Lowestoft (includes construction management) correct
Converter/Collector platforms None correct
Offshore transformers EA1A correct
Grid connection point Bramford 400kV, NW of Ipswich correct
Cable landing point Between the Bawdsey Martello Tower and Bawdsey Manor correct
Number of export cables 2 correct
Average length per cable 85 km correct
Transmission type (e.g. HVAC) correct
Nominal voltage 220 kV correct
Maximum voltage correct
Power rating correct
Number of cores 3 correct
Conductor type correct
Section area correct
Insulation correct
Number fibre optics 2 correct
Export minimum bend radius (MBR) correct
Burial depth correct
Comments Two 220kV HVAC offshore export cables. The cables will be buried 50m apart, with a 250m outer protection on either side (550m corridor in total). Therefore there will be two trenches. There will also be two cables joining the offshore substations. correct
Number of onshore cables 6 correct
Average length per cable 37 km correct
Comments Up to six 220kV HVAC underground cables. The six cables will be laid in two circuits of three cables, in two separate trenches. Siemens will be providing 66kV array cables as part of their new option to provide their direct drive turbines, 66kV array cables, transformers and switchgear. correct
Array cable length 122 km correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) correct
Nominal voltage 66 kV correct
Maximum voltage correct
Burial depth correct
Number of cores correct
Conductor type correct
Section correct
Insulation correct
Power rating 66 MVA correct
Number of fibre optics correct
Minimum bend radius (MBR) correct
Comments 102 array cables correct
Homes powered annually 505694 correct
CO2 reduced per year 1022008 tonnes correct
SO2 reduced per year 23768 tonnes correct
Expected life 30.0 years correct
Website Visit correct

Call +44 (0)1502 307 037 for more information

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