Latest event on Kentish Flats Extension

Scour protection work began at the site on turbine KE11. The work will take approximately three to four weeks. The vessel being used is M/S John Madsen. Read more

Latest Update: 18 October 2016

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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 is required for this project.

Offshore construction could not start before 30th April 2015 due to the herring spawning season.
correct
Round (or category) Round 2.5 correct
Development status Fully Commissioned correct
Power & Turbines 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
Costs Stated project cost GBP(mill) 150.00 correct
Location & Environment Sea name North Sea, Southern North Sea (Thames) correct
Centre latitude 51.451° correct
Centre longitude 1.080° 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 Esbjerg (Turbines), Sheerness Docks (Foundation) correct
Ops and maintenance Whitstable correct
Grid Converter/Collector 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 9.5 km correct
Transmission type (e.g. HVAC) AC 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 11 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 13 array cables. correct
Benefits Homes powered annually 35059 correct
CO2 reduced per year 70854 tonnes correct
SO2 reduced per year 1648 tonnes correct
Expected life 20.0 years correct
Other Website Visit correct

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123
StatusName
Decommissioned Beatrice Demonstration Beatrice Demonstration
Decommissioned Blyth Blyth
Fully Commissioned Barrow Barrow
Fully Commissioned Blyth Offshore Demonstrator Project - Array 2 Blyth Offshore Demonstrator Project - Array 2
Fully Commissioned Burbo Bank Burbo Bank
Fully Commissioned Burbo Bank Extension Burbo Bank Extension
Fully Commissioned Dudgeon Dudgeon
Fully Commissioned Galloper Galloper
Fully Commissioned Greater Gabbard Greater Gabbard
Fully Commissioned Gunfleet Sands Gunfleet Sands
Fully Commissioned Gunfleet Sands 3 - Demonstration Project Gunfleet Sands 3 - Demonstration Project
Fully Commissioned Gwynt y Môr Gwynt y Môr
Fully Commissioned Humber Gateway Humber Gateway
Fully Commissioned Hunterston Test Centre - Mitsubishi 7MW (onshore) Hunterston Test Centre - Mitsubishi 7MW (onshore)
Fully Commissioned Hunterston Test Centre - Siemens 6MW (onshore) Hunterston Test Centre - Siemens 6MW (onshore)
Fully Commissioned Hunterston Test Centre (onshore) Hunterston Test Centre (onshore)
Fully Commissioned Hywind Scotland Pilot Park Hywind Scotland Pilot Park
Fully Commissioned Inner Dowsing Inner Dowsing
Fully Commissioned Kentish Flats Kentish Flats
Fully Commissioned Kentish Flats Extension Kentish Flats Extension
Fully Commissioned Levenmouth demonstration turbine Levenmouth demonstration turbine
Fully Commissioned Lincs Lincs
Fully Commissioned London Array London Array
Fully Commissioned Lynn Lynn
Fully Commissioned North Hoyle North Hoyle
Fully Commissioned Ormonde Ormonde
Fully Commissioned Race Bank Race Bank
Fully Commissioned Rhyl Flats Rhyl Flats
Fully Commissioned Robin Rigg Robin Rigg
Fully Commissioned Scroby Sands Scroby Sands
Fully Commissioned Sheringham Shoal Sheringham Shoal
Fully Commissioned Teesside Teesside
Fully Commissioned Thanet Thanet
Fully Commissioned Walney Phase 1 Walney Phase 1
Fully Commissioned Walney Phase 2 Walney Phase 2
Fully Commissioned Wave Hub Wave Hub
Fully Commissioned West of Duddon Sands West of Duddon Sands
Fully Commissioned Westermost Rough Westermost Rough
Partial Generation/Under Construction Rampion Rampion
Partial Generation/Under Construction Walney Extension Walney Extension
Under Construction Aberdeen Offshore Wind Farm (EOWDC) Aberdeen Offshore Wind Farm (EOWDC)
Under Construction Beatrice Beatrice
Under Construction East Anglia ONE East Anglia ONE
Under Construction Hornsea Project One Hornsea Project One
Pre-Construction Hornsea Project Two Hornsea Project Two
Consent Authorised Blyth Offshore Demonstrator Project - Array 3A & 4 Blyth Offshore Demonstrator Project - Array 3A & 4
Consent Authorised Dogger Bank - Creyke Beck A Dogger Bank - Creyke Beck A
Consent Authorised Dogger Bank - Creyke Beck B Dogger Bank - Creyke Beck B
Consent Authorised Dogger Bank - Teesside A Dogger Bank - Teesside A
Consent Authorised Dounreay Trì Dounreay Trì
123
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