Kentish Flats Extension
49.5 MW Consent Authorised United Kingdom

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Developers/Owners/Operators
Project Details for Kentish Flats Extension
General Information Name Kentish Flats Extension correct
Other names Kentish Flats 2 correct
Country name United Kingdom correct
Region England, South East correct
Comments Part of the Round 1 and 2 extensions with an extra 1.7 GW supplied overall.

No Offshore Substation will be required for this project.
correct
Round (or category) Round 2.5 correct
Development status Consent Authorised correct
Comments on the status Subject to full planning consents including Environmental Impact Assessments (EIA). correct
Power & Turbines Notice any Errors? You can keep this an open resource by submitting corrections!
Project Capacity 49.5 MW correct
Turbine Model V112-3.3 MW Offshore (MHI Vestas Offshore Wind) correct
Turbine Capacity 3.3 MW correct
Number of Turbines 15 correct
Total Turbine Height 139.6 m correct
Hub Height 83.60 m correct
Rotor Diameter 112 m correct
Foundation Grounded: Monopile (The monopiles are approximately 41-48m in length and 5m in diameter, weighing between 223-260 tons each.) 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) 150.00 correct
Location & Environment Sea name North Sea, Southern North Sea (Thames) correct
Centre latitude 51.450° correct
Centre longitude 1.079° correct
Area 8 km2 correct
Depth range (Chart Datum) 1 m - 4 m correct
Depth range stated by developer 3 m - 5 m correct
Distance From Shore (reported) 8.5 km correct
Distance From Shore (computed from centre) 8.9 km correct
Ports Installation base correct
Ops and maintenance Whitstable correct
Grid Converter platforms None correct
Offshore transformers None correct
Grid connection point Red House Farm substation, just south of Herne Bay correct
Cable landing point Hampton Pier, west of Herne Bay 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 10 km correct
Transmission type (e.g. HVAC) MVAC correct
Nominal voltage 33 kV correct
Maximum voltage correct
Power rating correct
Number of cores 3 correct
Conductor type Cu correct
Section Area 500/800 mm2 correct
Insulation XLPE correct
Number fibre optics correct
Export minimum bend radius (MBR) correct
Burial depth correct
Comments correct
Onshore Cables Number of onshore cables 6 correct
Average length per cable 2.3 km correct
Comments 33kV, 2 x 3 cables correct
Array Cables Array cable length 10.5 km correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) MVAC correct
Nominal voltage 33 kV correct
Maximum voltage correct
Burial depth 0.5 to 1 m correct
Number of cores 3 correct
Conductor type Cu correct
Section 240 mm2 correct
Insulation XLPE correct
Power rating 28 MVA correct
Number of fibre optics correct
Minimum bend radius (MBR) correct
Comments correct
Benefits Homes powered annually 27678 correct
CO2 reduced per year 55937 tonnes correct
SO2 reduced per year 1301 tonnes correct
Expected life correct
Other Website Visit correct
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