Celtic Array South West Potential Development Area
1,000 MW Cancelled United Kingdom

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4C Offshore Ltd. has achieved certification to the ISO 9001, ISO 14001 and OHSAS 18001 standards for quality, environmental, and health & safety management.
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Developers/Owners/Operators
Project Details for Celtic Array South West Potential Development Area
General Information Name Celtic Array South West Potential Development Area correct
Other names Zone 9, Irish Sea correct
Country name United Kingdom correct
Region Wales, North correct
Comments July 2014 The Crown Estate invited all Round 3 developers to revise the terms of their agreement as the projects transition from zone appraisals to project development. This could mean that zone development agreements are replaced with project specific contractural agreements. correct
Round (or category) Round 3 correct
Development status Cancelled correct
Comments on the status Cancellation - The developers, Centrica and DONG, and the Crown Estate have agreed that the developers will cease development on the entire zone and terminate their seabed rights. The assessment of the zone has shown challenging ground conditions which using current technology make the project economically unviable. There are no plans to re-offer the zone to the market.

This potential development area (PDA) may be developed following the North East PDA and may be divided into 2x500MW projects.

Current efforts are being focused on Rhiannon Wind Farm, and examining the potential for development in the North East PDA.
correct
Power & Turbines Notice any Errors? You can keep this an open resource by submitting corrections!
Project Capacity 1,000 MW correct
Turbine Model Not Decided correct
Turbine Capacity correct
Number of Turbines correct
Total Turbine Height correct
Hub Height correct
Rotor Diameter correct
Foundation Not Decided 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 correct
Location & Environment Sea name Irish Sea (Irish Sea) correct
Centre latitude 53.677° correct
Centre longitude -4.875° correct
Area 267 km2 correct
Depth range (Chart Datum) 32 m - 69 m correct
Depth range stated by developer correct
Distance From Shore (reported) 15 km correct
Distance From Shore (computed from centre) 37.6 km correct
Ports Installation base correct
Ops and maintenance correct
Grid Converter platforms correct
Offshore transformers correct
Grid connection point correct
Cable landing point 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 correct
Average length per cable correct
Transmission type (e.g. HVAC) correct
Nominal voltage 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 correct
Onshore Cables Number of onshore cables correct
Average length per cable correct
Comments correct
Array Cables Array cable length correct
Estimated cable length LogIn
Transmission type (e.g. MVAC) correct
Nominal voltage 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
Benefits Homes powered annually 652340 correct
CO2 reduced per year 1318380 tonnes correct
SO2 reduced per year 30660 tonnes correct
Expected life correct
Other Website Visit correct
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