CIEMADeS 4th INTERNATIONAL CONFERENCE

Transcription

1 CIEMADeS 4th INTERNATIONAL CONFERENCE Submarine Cable Connections - from concept to commissioning Puerto Rico, May 5th 2011 Vegar Syrtveit Larsen Nexans Norway AS

2 Agenda Early phase What can typically be done at an early stage? State of the art (limitations/possibilities) and next generation technical solutions Project phase Survey (onshore and offshore) Detailed engineering Type testing (if required) Manufacturing ac u Testing (in factory, on site) Transport, installation and protection Operation & Maintenance Nexans reference list Examples of feasible Caribbean connections

3 At the core of performance : a worldwide presence Industrial presence in 39 countries and commercial activities worldwide 22,400 local experts Mastery of national and international standards

4 Nexans Norway AS

5 Nexans Norway AS Rognan Oslo (HQ) Namsos Langhus Karmøy Halden Telecom and Building Energy Networks Energy

6 Turn-key Supplier 1 Engineering/Design 3 Cable Manufacturing 2 Type Testing 4 Land Operations 5 Marine Operations

7 A submarine history as long as applied electricity 1500 submarine power cables in 100 years Challenging coastline, deep Offshore exploration in water (500 m) 35 years, water depth >2000 m Submarine Cables ranging g from 12 to 550 kv Power cables and umbilicals for the offshore industry for 35 years

8 Halden, Norway Specialised in submarine projects - Cable and Umbilical systems for Offshore applications

9 Early phase Concept/Feasibility/FEED study to: Provide preliminary cable and accessories design Identify and evaluate technology gaps (if any) Provide preliminary installation and protection method Provide budgetary price and schedule

10 Early phase The following parameters will have an impact of cable design and installation/protection method: Route length Transmitting requirements Temperature (in air and in soil) Soil conditions Water depth Landing points Crossings Coss Existing (parallel) cables Environmental concerns (corals, spawn seasons, archeology etc.) Human activities (ship lanes, trawling activity etc.) AC or DC (choice may depend on some of the parameters above)

11 State of the art and latest technology developments in HVAC transmission Outer corrosion protection Armour wires Fibre optic cable Conductor XLPE insulation system 2002 Horns Rev 1 and 2 Offshore Wind Farm, 170kV 3x1x630 mm Smola Wind Farm, 132kV 3x1x500 mm Barrow Offs Wind Farm, 132kV 3x1x300 mm Lynn and Inner Dowsing 36kV 3x1x mm 2 Lead sheath 2008 Wolfe Island Wind Farm, 245kV 3x1x500 mm Malta Sicily, 245kV 3x1x630 mm 2

12 State of the art and latest technology developments in HVDC transmission Three in one cable. Mass Impregnated (MI) DC cable with Integrated Return Conductor => eliminates the use of Sea return electrodes. Fibre Optic element integrated 500 kv 800 MW Mass Impregnated Next step : p 500 kv extruded polymer alloy => lighter in weight and reduced cost

13 State of the art and latest technology developments Reliability of Nexans Cable System Technology: HVAC XLPE insulated cables up to 245kV (300MVA) are fully qualified, 132kV to 1000m water depth. Up to 150km lenghts. Excellent in service record HVDC Paper insulated cables up to 500kV (800MW) are fully qualified at Nexans, 250kV to 1500m water depth. Up to 1000km lengths. Excellent e in service record HVDC XLPE insulated cables up to 320kV (500MW) are under development

14 Project phase Onshore survey Topography, soil samples, environment Offshore Bathymetry, thermal conditions (temperature and thermal resistivity of the soil), obstacles detection, nature of the soils, human activities, meteo/oceanographic data a

15 Nature of soil Project phase

16 Nature of soil Project phase

17 Meteo/oceanographic data Project phase

18 Project phase Detailed engineering Route length Transmitting requirements Temperature (in air and in soil) Soil conditions Water depth Landing points Crossings Existing g(paa (parallel) e)cabes cables Environmental concerns (corals, spawn seasons, archeology etc.) Human activities (ship lanes, trawling activity etc.) Protection philosophy AC or DC (choice may depend on some of the parameters above) Cable and accessories design + installation method

19 Project phase Example 950 Ampacity [A] vs. burial depth [m] Ampacity Ampacity [A] vs. temperature t [degc] Ampacity

20 Project phase Tests in the factory Routing testing during manufacturing FAT prior to load-out Type test Performed on new designs (new voltage levels, new materials, new water depths etc.) Electrical, mechanical, material Time consuming and costly

21 Transport and installation

22 Transport and installation

23 Transport and installation C/S Nexans Skagerrak is the most experienced DP II cable laying vessel in the world with 7000 tonnes of loading capacity

24 Protection shallow water

25 Protection deep water

26 External protection shallow water

27 External protection deep water

28 Nexans reference list Latest XLPE HVAC projects 2001 Reliant Energy - Galveston Island 145 3x1x630 Cu + FO 2x4600 Halden 2001 BPA - Fidalgo Is.to Decatur Is. to Lopez 72 3x1x500 Cu + FO Halden Island 2001 PREPA Punta Lima/ Vieques/Cuelebra 46 3x1x107 Cu + FO 2x18500 Halden 2002 Eltra Horns Rev wind park 170 3x1x630 Cu + FO Halden 2003 Bergenshalvøens K.K. Sture to 145 3x1x400 Cu Halden Merkesvik 2003 Troms Kraftforsyning Lyngenfjorden 145 1x630 Cu Halden 2003 Tyssefaldene 72 3x1x630 Cu + FO 2600 Halden 2004 Statkraft Smola 145 3x1x500 Cu + FO 4820 Halden 2004 Shanghai Municipal El. Power Co x1x400 Cu + FO 2x9050 Halden Chong Ming Isl. to Chand Xing Isl CNOOC Lu Da 72 3x1x185 Cu + FO Halden 2005 N. Douglas Youngs Bay (Al Alaska) 72 3x1x240 Cu + FO Halden 2005 Barrow wind farm (UK) 145 3x1x300 Cu + FO Halden Ormen Lange 420 1x1200 Cu 4x2600 Halden Koh Samui ( Thailand) Long Island Replacement Cables - USA x1x300 Cu + FO 3x1x800 Cu + FO x18500 Halden Halden Delma Island (in progress) UAE 132 3x1x300 Cu + FO 2x45000 Halden Wolfe Island Canada Inner Oslo Fiord - Norway x1x500 Cu + FO 1x1200 Cu x3 000 Halden Halden Horns Rev II Denmark Pemba Tanga (Zanzibar) x1x630 Cu + FO 3x630 Cu Halden Halden Lincs windfarm (UK) in progress 132 3x1x630 Cu + FO 2x50000 Halden Koh Chang in progress 115 3x1x185sqmm Halden Cork Bay ( Ireland) in progress London Array wind farm (UK) in progress x1600 Cu 3x 1x500sqmm 4x3800 4x50000 Halden Halden Belwind wind farm (Belgium) in progress 170 3x1x 500/630sqmm Halden

29 Nexans reference list Latest HVDC projects PROJECT Voltage km Year/s Vancouver, pole I 300 DC 3x Skagerrak I & II 250 DC 2x /77 Vancouver Island 525 AC (9+30)x Cross Channel 270 DC 4x /85 Fenno Skan I 400 DC Cook Strait 350 DC 3x Skagerrak III 350 DC /93 Korea-Cheju Island 180 DC Gulf of Aqaba 400 AC/DC 4x Leyte-Cebu 230 AC 4x Spain-Morocco 400 AC/DC 4x Scotland N Ireland 250 DC IRC 2x Spain-Morocco 400 AC/DC 3x Norned (deep part) 450 DC 2x KSA - Bahrain 400 AC 3x Sardinia-Italy 500 DC Valhall Electrification 150kV FennoSkan II 500 DC Kontek (DK-D) 400 DC Hainan-Guandong (China) 525kV AC 3x Spain-Mallorca 250 DC

30 Examples of feasible Caribbean connections Nevis St Kitts Route depth max 15m Route length: 5 km Cable connection: 90kV HVAC Insulation type : XLPE MVA: 50 Estimated cost (*) for cable system: 15M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

31 Examples of feasible Caribbean connections Nevis USVI Route depth max 1000m Route length: 320 km Cable connection: 150kV HVDC Insulation type : Mass impregnated paper MVA: 80 Eti Estimated tdcost (*) for cable system Incl. converter stations: 320M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

32 Examples of feasible Caribbean connections Nevis Puerto Rico Route depth max 1000m Route length: 400 km Cable connection: 350kV HVDC IRC MW: 400 Insulation type: Mass Impregnated Paper Estimated cost (*) for cable system incl.conventional converter stations: 720M US$ Puerto Rico St Croix Route depth max 1650m (to be verified) Route length:170 km Cable connection: 150kV HVDC IRC MW: 60 Insulation type: Mass Impregnated Paper Estimated cost (*) for cable system incl. VS converter stations: 245M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

33 Examples of feasible Caribbean connections Martinique Dominica Route depth max 1000m Route length: 75 km Cable connection: 132kV HVAC Insulation type : XLPE MVA: 100 Estimated cost (*) for cable system: 65M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

34 Examples of feasible Caribbean connections Guadaloupe Dominica Route depth max 700m Route length: 70 km Cable connection: 132kV HVAC Insulation type : XLPE MVA: 100 Estimated cost (*) for cable system: 59M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

35 Examples of feasible Caribbean connections Puerto Rico St Thomas (USVI) Route depth max 85m Route length: 97 km Cable connection: 132kV HVAC Insulation type : XLPE MVA: 100 Estimated cost (*) for cable system: 80M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

36 Examples of feasible Caribbean connections USVI BVI Route depth max 20m Route length: 32 km Cable connection: 36kV HVAC Insulation type : XLPE MVA: 25 Estimated cost (*) for cable system: 20M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

37 Examples of feasible Caribbean connections Saba Sint Marteen Route depth max 1000m Route length: 60 km Cable connection: 132kV HVAC Insulation type : XLPE MVA: 100 Estimated cost (*) for cable system: 55M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

38 Examples of feasible Caribbean connections Nevis Guadaloupe Route depth max 860m Route length: 140 km Cable connection: 132kV HVAC Insulation type : XLPE MVA: 85 Estimated cost (*) for cable system: 130M US$ (*) Cable manufacturing, transport, lay on seabed and protected to 100m from the shore. Based on 9300 USD/tonne for Cu and 2500 USD/tonne for Pb and 1 USD = 5,3 NOK, 1 USD = 0,67 Euro

39 Pemba Tange video Pemba Tanga Project

40 Thank you for your attention!