Latest event on Walney Extension

The substation, Walney 3, sailed out from ENGIE Fabricom's yard in Hoboken. At 6:30am tugboats surrounded the barge and at 7:25am, at high tide the barge with the substation sailed out. The Iements 48m jacket foundation sailed out with it. Read more

Latest Update: 18 March 2017

Developers/Owners/Operators Database in Excel | Add Your Organisation
RoleOrganisation 
Developer
DONG Energy Walney Extension (UK) Ltd (DONG Energy AS)
correct
Owner
DONG Energy Walney Extension (UK) Ltd (DONG Energy AS)
correct
Project Details for Walney Extension Database in Excel
Name Walney Extension correct
Other names Walney 3 and 4, Walney Extension East and West correct
Country name United Kingdom correct
Region England, North West correct
Comments The landfall site contains the only healthy colony of Belted Beauty moths in the UK. Consequently Horizontal Directional Drilling (HDD) will be used instead of open trenching.

Walney Extension utilises the met mast at Cirrus Shell Flats and is part of the suggested Round 1 and 2 extensions, supplying a total of 1.7GW to UK offshore wind.

Walney Extension will be part of Ofgem's Tender Round 5, expected to launch later in 2016, with regards to the sale of its offshore transmission assets once constructed.

DONG Energy expect to attain a capacity factor in excess of 45%, significantly higher than that achieved by onshore wind and solar PV.
correct
Round (or category) Round 2.5 correct
Development status Pre-Construction correct
Comments on the status correct
Notice any Errors? You can keep this an open resource by submitting corrections!
Project capacity 659 MW correct
Turbine model 40x MHI-Vestas V164-8.0MW and 47x Siemens SWT-7.0-154. The MHI Vestas V164 machines will be power boosted to 8.25MW. correct
Turbine capacity correct
Number of turbines 87 correct
Total turbine height correct
Hub height 105.00 m correct
Rotor diameter correct
Foundation Grounded: Monopile correct
10 year mean wind speed (2000-2009) Available online now
Stated project cost correct
Sea name Irish Sea correct
Centre latitude 54.088° correct
Centre longitude -3.738° correct
Area 149 km2 correct
Depth range (Chart Datum) 20 m - 54 m correct
Depth range stated by developer 20 m - 37 m correct
Distance from shore (reported) 19 km correct
Distance from shore (computed from centre) 29 km correct
Installation base Belfast Harbour correct
Ops and maintenance Barrow correct
Converter/Collector platforms None correct
Offshore transformers WOW03, WOW04 correct
Grid connection point Heysham correct
Cable landing point Middleton Sands correct
Number of export cables 2 correct
Average length per cable 68.3 km correct
Transmission type (e.g. HVAC) HVAC correct
Nominal voltage 220 kV correct
Maximum voltage 400 kV 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 2 m correct
Comments There will also be 23km of cable between the two substations of Phase 1 and Phase 2. correct
Number of onshore cables 12 correct
Average length per cable 3.7 km correct
Comments Between 132 and 220 kV - 1-1.4m burial, width 3m, 4 land fall options available, all within 1.5km, 6-15 onshore cables correct
Array cable length 190 km correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) MVAC correct
Nominal voltage 33 kV correct
Maximum voltage 34 kV correct
Burial depth correct
Number of cores 3 correct
Conductor type Cu correct
Section correct
Insulation XLPE correct
Power rating correct
Number of fibre optics correct
Minimum bend radius (MBR) correct
Comments 66kV cable no longer under consideration.

The longest cable will measure 11.5km and the shortest 550m, all buried to a 2m target burial depth.
correct
Homes powered annually 466740 correct
CO2 reduced per year 943282 tonnes correct
SO2 reduced per year 21937 tonnes correct
Expected life 25.0 years correct
Website Visit correct

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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
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