402 MW Consent Authorised United Kingdom

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Developer correct
Developer correct
Operator correct
Owner correct
Owner correct
Project Details for Dudgeon
General Information Name Dudgeon correct
Other names correct
Country name United Kingdom correct
Region England, East of England correct
Comments Select for consent over Docking Shoal in part because the project is predicted to kill annually far fewer breeding Sandwich terns from the North Norfolk Coast SPA per turbine (0.31) than Docking Shoal (0.84). The Dudgeon mortality rate cannot exceed 28 Sandwich terns per year.

Project will initially use a Service Operations Vessel (SOV) for O&M which will be in the field for a month at a time, with technicians working two weeks on and two off. The SOV will be needed in 2016, possibly earlier if used in construction. After 4-5 years Statoil may consider switching to fast 45 knot+ vessels.
Round (or category) Round 2 correct
Development status Consent Authorised correct
Comments on the status correct
Power & Turbines Notice any Errors? You can keep this an open resource by submitting corrections!
Project Capacity 402 MW correct
Turbine Model SWT-6.0-154 (Siemens) correct
Turbine Capacity 6 MW correct
Number of Turbines 67 correct
Total Turbine Height correct
Hub Height correct
Rotor Diameter 154 m correct
Foundation Grounded: Monopile (56 monopiles and 11 jackets the design as of April 2014. Aiming to reduce numbers of jackets to zero. The monopiles will vary between 60-78m in length and weigh between 600-1000Mt.) correct
Windspeed 10 Year Mean Wind Speed (2000-2009) Available online now
Detailed wind speed data 6 hr/day/month historic data
Costs Stated Project Cost GBP(mill) 1500.00 correct
Location & Environment Sea name North Sea, Southern North Sea (Humber) correct
Centre latitude 53.265° correct
Centre longitude 1.380° correct
Area 55 km2 correct
Depth range (Chart Datum) 11 m - 22 m correct
Depth range stated by developer 18 m - 25 m correct
Distance From Shore (reported) 32 km correct
Distance From Shore (computed from centre) 36.6 km correct
Ports Installation base correct
Ops and maintenance Great Yarmouth correct
Grid Converter platforms None correct
Offshore transformers Dudgeon Substation correct
Grid connection point Necton 400kV correct
Cable landing point Weybourne correct
Export Cables
Please note that export cables connect the offshore transformer (substation) to either; shore or an offshore HVAC-HVDC converter station for onward transmission via HVDC cabling. Please see the converters page for planned converter stations and transmission cables.

The export cable length does not generally include the onshore component. The exception is when the onshore substation is close to shore.
Number of Export Cables 2 correct
Average length per cable 42 km correct
Transmission type (e.g. HVAC) HVAC correct
Nominal voltage 132 kV correct
Maximum voltage correct
Power rating correct
Number of cores 3 correct
Conductor type correct
Section Area correct
Insulation correct
Number fibre optics correct
Export minimum bend radius (MBR) correct
Burial depth 1 m correct
Comments correct
Onshore Cables Number of onshore cables 9 correct
Average length per cable 48 km correct
Comments 3 x 3 cables in trench - Dunham first choice, Necton second choice for substation correct
Array Cables Array cable length 100 km correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) MVAC correct
Nominal voltage 33 kV correct
Maximum voltage correct
Burial depth correct
Number of cores correct
Conductor type correct
Section correct
Insulation correct
Power rating correct
Number of fibre optics correct
Minimum bend radius (MBR) correct
Comments correct
Benefits Homes powered annually 224778 correct
CO2 reduced per year 454276 tonnes correct
SO2 reduced per year 10565 tonnes correct
Expected life 25.0 years correct
Other Website Visit correct