uk’s first commercial scale offshore wind farm 26th march 2003 nwp offshore ltd
TRANSCRIPT
UK’s First Commercial Scale
Offshore Wind Farm
26th March 2003
NWP Offshore Ltd
Presentation
• Project Overview
• Construction Process
• Progress to Date
• Marking of Wind Farm on Admiralty Charts
• Stakeholder Involvement in Construction Process
Project Overview
• 30 wind turbines, Vestas V-80 2MW • 4-5 miles off Prestatyn / Rhyl •Rectangular Turbine Array
• 800m Separation E-W• 350m Separation N-S
• Cable landfall /grid connection at Rhyl• Output equivalent to annual demand of approximately 50,000 homes
North Hoyle - Main Parameters
Project History• Summer 1999 - Install Monitoring Mast
• December 2000 - Crown Estate Invitation to Bid
• Spring 2001 - Awarded Licence to Develop
• August 2001 - Launch of “Juice”
• February 2002 - Submit Consents Application
• August 2002 - Obtain Consents
• October 2002 - Commence Onshore Works
• Summer 2003 - Offshore Construction
• Late 2003 - First Generation
Wind Farm Construction
Turnkey Contract
• Turnkey contractor is consortium of Vestas Celtic Wind Technology and Mayflower Energy
• Includes 5 year Warranty, Operations and Maintenance provision
Turnkey Contract - Major Suppliers
Wind Turbines - Vestas
Wind Turbine Installation - Mayflower
Monopile Supply - Rheden Steel
Monopile Installation - Seacore
Subsea Cables - AEI Cables
Foundations
• 4m diameter, 275t (max), stored at Mostyn
• Installation by Seacore using Jack-up Barge “Excalibur”
• Pile towed out from Mostyn, lifted to vertical
• Hammer installed, drive to rockhead (10-15m below mudline)
• 3.7m hole drilled through pile, through overburden to required penetration
• Pile driven to required penetration
Photo of Horns Rev Foundation
Progress Update
Progress to Date• Construction plans (Environmental Management
System, Oil Spill Contingency Plan etc) in place for construction phase
• Site establishment at Mostyn
• Onshore Works - Majority Complete
– Sub-station, some cable laying still to be performed
– Directional drill to be performed under sea-wall
Progress to Date• Offshore Works
– Modifications to Seacore installation vessel (in Liverpool) almost complete
– Monopile supply on schedule, currently 8 piles stored at Mostyn
– Piling about to begin
• Project “On Track” for commissioning in late Autumn
Marking of Wind Farm on Admiralty Charts
Construction Phase
Operations Phase
Stakeholder Involvement
• “Safety at Sea” Seminar
– Inform stakeholders of forthcoming activities
– Methods of communication
– Establish points of contact
– Effect of wind farm on aids to navigation
– Safety
– Invite feedback
Stakeholder Involvement
• Invitees included
– Port Authorities
– Commercial vessel operators
– RYA, RNLI, MCA,
– Local councils
– Sailing clubs
– Fisheries consultees
Stakeholder Involvement
• Fisheries Liaison Officer
– Notice of forthcoming activities
• Web Site
– Progress Updates
Stakeholder Involvement
