Latest event on Gunfleet Sands

Ørsted applied for a marine license to carry out additional corrosion monitoring activities during close out of the 5 year corrosion inspection plans . Work would involve short term water level monitoring, supported by correlating water quality measurements, in order to confirm that the internal water column remains both confined and oxygen depleted. This assumption of a stable water column is essential to establishing a corrosion map of the internal foundations, and will be supported by the data gained from the installation of water level and water quality logging equipment. Read more

Latest Update: 15 March 2018

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Developers/Owners/Operators Database in Excel | Add your Organisation
RoleOrganisation 
Developer correct
Developer correct
Operator
After selling nearly half of the project to Marubeni, DONG will still be providing operations and maintenance services. The agreement expires in December 2026 with varying levels of fees throughout the period.
Value: LogIn
correct
Operator correct
Operator-Offshore Transmission correct
Owner correct
Owner
Entered into an agreement to purchase 49.9% of the project. The deal was concluded on 01/11/2011. On 27 Dec 2013, it was announced that it had sold 50% of its stake to the Development Bank Japan.
Value: LogIn
correct
Owner correct
Owner-Offshore Transmission
TC Gunfleets Sands OFTO Limited (Transmission Capital Partners)
correct
Project Details for Gunfleet Sands
General Information Name Gunfleet Sands correct
Other names GFS correct
Country name United Kingdom correct
Region England, East of England correct
Comments Dong submitted a contingency for emergency array cable repairs. The permission sought is for a period between 01/05/2014 and 01/07/2036 this will reduce the time waiting for permission to be granted.

Route to Market: Renewables Obligation 1.5 ROCs/MWh
correct
Round (or category) Round 1 correct
Development status Fully Commissioned correct
Power & Turbines Project capacity 172.8 MW correct
Turbine model SWT-3.6-107 (Siemens) correct
Turbine capacity 3.6 MW correct
Number of turbines 48 correct
Total turbine height 128.5 m correct
Hub height 75.00 m correct
Rotor diameter 107 m correct
Foundation Grounded: Monopile correct
Windspeed 10 year mean wind speed (2000-2009) Available online now
Costs Stated project cost DKK(mill) 3900.00 correct
Location & Environment Sea name North Sea, Southern North Sea (Thames) correct
Centre latitude 51.731° correct
Centre longitude 1.229° correct
Area 16 km2 correct
Depth range (Chart Datum) 0 m - 13 m correct
Depth range stated by developer 2 m - 15 m correct
Distance from shore (reported) 7 km correct
Distance from shore (computed from centre) 7.4 km correct
Ports Installation base Harwich correct
Ops and maintenance Brightlingsea correct
Grid Converter/Collector platforms None correct
Offshore transformers Gunfleet Sands I + II Substation correct
Grid connection point Cooks Green correct
Cable landing point Holland Haven 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 1 correct
Average length per cable 9.3 km correct
Transmission type (e.g. HVAC) correct
Nominal voltage 132 kV correct
Maximum voltage 145 kV correct
Power rating 182 MVA correct
Number of cores 3 correct
Conductor type correct
Section area 800 mm2 correct
Insulation correct
Number fibre optics 48 correct
Export minimum bend radius (MBR) 3 m correct
Burial depth 2 m correct
Comments correct
Onshore Cables Number of onshore cables 3 correct
Average length per cable 3.8 km correct
Comments 132kV, 182MVA, buried to a depth of 1.2m. The cables have been pulled through the ducted section in approximately 400m lengths, in one trench. correct
Array Cables Array cable length 36 km correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) correct
Nominal voltage 33 kV correct
Maximum voltage correct
Burial depth correct
Number of cores 3 correct
Conductor type correct
Section 500/150 mm2 correct
Insulation correct
Power rating correct
Number of fibre optics 24 correct
Minimum bend radius (MBR) correct
Comments correct
Benefits Homes powered annually 122387 correct
CO2 reduced per year 247343 tonnes correct
SO2 reduced per year 5752 tonnes correct
Expected life 25.0 years correct
Other Website Visit correct

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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
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Fully Commissioned Gunfleet Sands Gunfleet Sands
Fully Commissioned Gunfleet Sands 3 - Demonstration Project Gunfleet Sands 3 - Demonstration Project
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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)
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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 Aberdeen Offshore Wind Farm (EOWDC) Aberdeen Offshore Wind Farm (EOWDC)
Partial Generation/Under Construction Rampion Rampion
Partial Generation/Under Construction Walney Extension Walney Extension
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
Pre-Construction Kincardine Offshore Windfarm Project Kincardine Offshore Windfarm Project
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
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