Latest event on Gunfleet Sands 3 - Demonstration Project

DONG Energy submitted a pre-emptive application to the MMO that relates to works which would be undertaken should the inter array or the export cable.
This operational Marine Licence will only be used in case of an unexpected fault of the array and/or export cable at the Gunfleet Sands Offshore Wind Farm.
This licence is sought for the remaining operational lifetime of the Wind Farm (23 years) for the recovery and repair/replacement of up to three incidents.
The duration of an individual repair is likely to be as follows:
1. Onshore mobilisation: one month
2. Execution of repair work scope: one month
3. Cable reburial and survey: one month
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Latest Update: 30 January 2015

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Project Details for Gunfleet Sands 3 - Demonstration Project Database in Excel
Name Gunfleet Sands 3 - Demonstration Project correct
Other names Gunfleet Sands Extension correct
Country name United Kingdom correct
Region England, East of England correct
Comments The lease was issued to allow the testing of up to 2 next generation offshore wind turbines. The maximum capacity allowed was up to 20MW in total.

Dong Energy was forced to consider a dedicated export cable for its two-turbine Gunfleet 3 demonstration project off East Anglia due to the lack of capacity on existing wires.
correct
Round (or category) Demonstration correct
Development status Fully Commissioned correct
Comments on the status correct
Notice any Errors? You can keep this an open resource by submitting corrections!
Project capacity 12 MW correct
Turbine model SWT-6.0-120 (Siemens), Also will fit a 154m rotor later on. correct
Turbine capacity 6 MW correct
Number of turbines 2 correct
Total turbine height 144 m correct
Hub height correct
Rotor diameter 120 m correct
Foundation Grounded: Monopile correct
10 year mean wind speed (2000-2009) Available online now
Stated project cost GBP(mill) 51.00 correct
Sea name North Sea, Southern North Sea (Thames) correct
Centre latitude 51.704° correct
Centre longitude 1.191° correct
Area 3 km2 correct
Depth range (Chart Datum) 5 m - 12 m correct
Depth range stated by developer correct
Distance from shore (reported) 8 km correct
Distance from shore (computed from centre) 9.1 km correct
Installation base Brightlingsea, Harwich correct
Ops and maintenance Brightlingsea correct
Converter/Collector platforms None correct
Offshore transformers None correct
Grid connection point Waterglade Retail Park, Clacton on Sea correct
Cable landing point Martello Bay, Clacton on Sea correct
Number of export cables 1 correct
Average length per cable 12 km correct
Transmission type (e.g. HVAC) MVAC correct
Nominal voltage 33 kV correct
Maximum voltage correct
Power rating correct
Number of cores correct
Conductor type correct
Section area correct
Insulation correct
Number fibre optics correct
Export minimum bend radius (MBR) correct
Burial depth correct
Comments DONG Energy is being forced to consider a dedicated export cable for its two-turbine Gunfleet 3 demonstration project off East Anglia due to the lack of capacity on existing wires. correct
Number of onshore cables 3 correct
Average length per cable 1 km correct
Comments 33kV correct
Array cable length 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
Homes powered annually 8499 correct
CO2 reduced per year 17177 tonnes correct
SO2 reduced per year 399 tonnes correct
Expected life correct
Website Visit correct

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123
StatusName
Decommissioned Beatrice Demonstration Beatrice Demonstration
Decommissioned Blyth Blyth
Fully Commissioned Barrow Barrow
Fully Commissioned Burbo Bank Burbo Bank
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 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 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 Burbo Bank Extension Burbo Bank Extension
Partial Generation/Under Construction Dudgeon Dudgeon
Under Construction Galloper Galloper
Under Construction Race Bank Race Bank
Under Construction Rampion Rampion
Pre-Construction Aberdeen Offshore Wind Farm (EOWDC) Aberdeen Offshore Wind Farm (EOWDC)
Pre-Construction Beatrice Beatrice
Pre-Construction Blyth Offshore Demonstrator Project - Array 2 Blyth Offshore Demonstrator Project - Array 2
Pre-Construction East Anglia ONE East Anglia ONE
Pre-Construction Hornsea Project One Hornsea Project One
Pre-Construction Hywind Scotland Pilot Park Hywind Scotland Pilot Park
Pre-Construction Walney Extension Walney Extension
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 Dogger Bank - Teesside B Dogger Bank - Teesside B
Consent Authorised Dounreay Trì Dounreay Trì
123
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