Presentation on theme: "Forth Estuary Forum 28th Nov 2013"— Presentation transcript:
1 Forth Estuary Forum 28th Nov 2013 The Seagreen Project in the Firth of Forth Round 3 Zone Nick Brockie, SSE Renewables Seagreen Offshore Project Manager
2 Seagreen Wind Energy Limited SSE Renewables and Fluor Ltd joint venture (partners on Greater Gabbard OWF development)For development, construction and operation of offshore wind farm projects in the Firth of Forth Round 3 ZoneContractual Zone Development Agreement with The Crown EstateTarget generation capacity 3,500MW, up to 7 offshore wind farms.The Crown Estate development partner, sharing some development costs.
3 SSE Renewables Offshore Wind Part of SSE plc - approximately 11,500MW electricity generation capacityOver 3,000MW Renewables capacity (hydro, onshore wind, offshore wind)Operational offshore wind farmsGreater Gabbard 500MW (with RWE)Walney 1&2 370MW (with Dong)Also 4,400MW coal fired; 4,500MW gas and oil fired capacity
4 SSE Renewables Offshore Wind Significant investment in development of offshore wind capacity by SSE Renewables, with a range of partnersGalloper OWF (consented May 2013) - up to 500MWBeatrice OWF (Moray Firth) - up to 1,000MWFirth of Forth R3 Zone (Seagreen) - up to 3,500MWIslay OWF - up to 750MWDogger Bank R3 Zone (Forewind) - up to 9,000MWHunterston – National Offshore Wind Turbine Test Facility
5 SSE Renewables Offshore Wind BeatriceFirth of Forth ZoneIslayHunterstonDogger Bank ZoneWalney 1&2Greater Gabbard,Galloper
6 SSE Renewables Offshore Wind National Offshore Wind Turbine Test Facility at Hunterston
8 Firth of Forth Zone - Seagreen Phase 1 Offshore Project Zone area 2,850km223km min to 80km offshoreWater depth 35m to 70m3 Development PhasesPhase 1 (offshore application Oct 2012)400km2 total areaUp to 150 WTGs1,050MW max capacityExport cable landfall Carnoustie
9 Firth of Forth Zone – Seagreen Phase 1 Offshore Project
10 Firth of Forth Zone – Seagreen Phase 1 Onshore Project HVAC HVDCLandfall at Carnoustie19km underground cableNew substation at TealingPlanning consent achieved November 2013!
11 HOW TO BUILD AN OFFSHORE WIND FARM? Key ComponentsMet mast(s)Wind turbine generatorsArray cablesOffshore substationExport cables (offshore and onshore)Onshore substation
12 Firth of Forth Zone – Seagreen Phase 1 Offshore Project Indicative wind farm layouts(150 WTGs)
13 Offshore Wind Farm Design – Foundations and Substructures Monopile Multileg (jacket) Gravity base Suction pile
14 Foundation and Substructure Design Considerations Water depthsGround conditionsConstruction / logisticsInstallation methodEnvironmental impactCost!!!
15 Offshore Substations Collection point for array cables Steps up voltageExport back to onshore substationHVDC or HVDCOSPAC 500MWDC 1GWLength (m)4586Breadth (m)50Height (m)4055Weight (te)2,50016,000
16 Offshore Wind Farm Construction Port facilitieslay down and load outInstallation vesselsJack-up, transport barge, cable lay, ROV support, guard, floating heavy lift, personnel transfer vessel.. etcCapacities and Operability
17 Cable Installation Array cables and Export cables Buried in the seabed - ploughing or jettingCable Protection – rock dump or concrete mattress
18 Offshore Wind Farm Operation and Maintenance 25 year working lifeMonitoring and servicePreventative and corrective maintenanceMinimise downtime and lost revenueO&M VesselsCrew transfer vessels (helicopters?)Heavy liftSurvey / ROVOffshore service vessels?Floating accomodation?
19 Firth of Forth Round 3 Zone - Phase 1 Offshore Project Project Alpha visualisation – Braes of Lunan