IET - Breakfast Briefing - December 7th 2010.pdf

Greater Gabbard The World’s Largest Offshore Wind Farm In Construction Presentation to IET Dublin - December 7th 2010 by Séamus Mc Cabe 2Agenda ? SSE – Who are we? ? The Greater Gabbard Offshore Windfarm Project ? Foundations and Transition Pieces ? Design ? Installation ? J-tubes ? The Future Challenge SSE Renewables - Who are we? 30th largest company in the FT-SE 100 Electricity Gas Networks ￡4.7bn RAV 2nd largest Energy Supply (GB Ireland) 9.2 million customers 2nd largest Generation (UK) Over 11,000MW 2nd largest Renewable Generation (wind, marine hydro, biomass) Largest in the UK Over 2,300MW Over 450MW in operation in Ireland Safety Service Efficiency Sustainability Excellence Teamwork The Greater Gabbard Experience 5Greater Gabbard Offshore Windfarm Project ? UK Round 2 Project – Awarded 2004 ? SSE/RWE joint development ? 504 MW Offshore Wind Farm ? Project Site ? Outer Thames Estuary, U.K. ? 12 nautical miles (25 km) offshore ? Site area: 147km2 ? Water depth: 20 to 32 metres ? 140 Turbines, 2 Offshore Platforms Greater Gabbard – Project Lifecycle ? Development (2003 -2004) ? Design (2004 – 2008) ? Construction Installation (2009 – 2011) ? O M, Decommissioning (2011 – 2035??) Site selection property arrangements Wind resource assessment Windfarm layout Consents and Licences Design Engineering Contracting Strategy Turbine Procurement BOP Financing / PPA Monopiles and Transition Pieces Offshore Substation Wind Turbine Generators Electrical Cables (Inter-array and Export) Onshore Substation Grid Connection Turbine Maintenance BOP Maintenance Transport and Accessibility Decommissioning November 2010 – Largely Complete Ongoing Works Construction Risk mitigated through contracting strategy Turbine Supply Balance of Plant Grid Contractor Siemens Fluor National Grid Scope Covers supply commissioning of turbines Covers turbine installation, vessels, onshore works, offshore substation, cabling