Offshore Service Vessels for Wind Farming. BALTEXPO 2011, September 2011

Transcription

1 Offshore Service Vessels for Wind Farming BALTEXPO 2011, September 2011

2 Agenda 1. Market Outlook and Vessel Prognosis 2. Design Concepts Wind Turbine Installation Ships 3. Rules and Regulations 4. Maintenance and Supply Vessels 5. Summary Offshore Service Vessels for Wind Farming No. 2

3 Market Outlook - by Country Currently around 1GW being installed per year, rising to 5GW, equivalent to: 250 1,000 turbines per year km of export cable 4 20 vessels to install support structures 3 14 vessels to install turbines 1 8 vessels to repair turbines Support Vessels pacity (New s) [MW] 9,000 8,000 7,000 6,000 5, vessels to install turbines Prices appear to have plateaued Sound basis for vessel project development reached Wind Farm Cap Installations Note: Market Analysis based on actual projects hence may be highly conservative ten years in to the future 4,000 3,000 2,000 1,000 Offshore Service Vessels for Wind Farming No Year e [GW] Cum ulativ BE DK FI FR EI ES NO SE NL DE UK CA US Other Europe CN Cumulative Market Analysis and Prognosis: GL Garrad Hassan

4 Agenda 1. Market Outlook and Vessel Prognosis 2. Design Concepts Wind Turbine Installation Ships 3. Rules and Regulations 4. Maintenance and Supply Vessels 5. Summary Offshore Service Vessels for Wind Farming No. 4

5 Challenges in Design of Wind Turbine Installation Ships (WTIS) Main Factors environmental conditions distance from shore water depth wind turbine size foundation type optimization of given time window Questions to be answered self propelled / no propulsion jacking / non jacking large deck area for working sailing speed size of crane and lifting appliances? Accommodation? Dynamic Positioning? What is the best design to meet the requirements best? Offshore Service Vessels for Wind Farming No. 5

6 Offshore Wind Farms - Environment It would not be considered to install wind turbines in areas with high probability for low wind speeds. Offshore Service Vessels for Wind Farming No. 6

7 Cost Breakdown of Offshore Turbine Installation Jacking 6% DP 6% Loading 8% Sailing 14% Installation 47% WOW 19% abt. 20% of the cost are spent for waiting on weather/waves Source: Dutch Offshore Investors 2010 Offshore Service Vessels for Wind Farming No. 7

8 Water Depth Offshore Service Vessels for Wind Farming No. 8

9 Europe - Offshore Windfarming development deeper and further, Trend until 2025 Southern Europe Offshore Service Vessels for Wind Farming No. 9 Source: EWEA.org

10 Increasing Turbine Sizes and Weights Turbine Size Nacelle Weight (incl. Rotor) Hub Height Tower Weight 3 MW ~ 110 t m ~ 110 t 3.6 MW ~ 185 t m ~ 170 t 6 MW t m t 2.3 MW 3.6 MW Already the world s biggest rotating machines Source: Siemens Wind Power Offshore Service Vessels for Wind Farming No. 10

11 Foundations Type Typical Waterdepth Typical Size Typical Weight 1 Monopile ~ 35 m ~ 4-5 m Ø t 2 Gravity ~ 20 m ~ 30 m Ø t 3 Jacket up to 70 m ~ 25 x 60 m t 4 Tripod ~ 50 m ~ 35 x 60 m 1000 t Offshore Service Vessels for Wind Farming No. 11

12 Design Concepts: Estimated UK Developments Offshore Service Vessels for Wind Farming No. 12

13 Generation I - Combined crane and working barges Prototype Installation Used for installation close to shore Or when suitable vessels are not available Offshore Service Vessels for Wind Farming No. 13

14 Generation II - Jackup barges without propulsion Used further offshore Safer, more efficient Source: hochtief- construction.de Offshore Service Vessels for Wind Farming No. 14

15 Generation III - HLJV for Beluga Hochtief Offshore Joint venture of Beluga and Hochtief Basic Design by Overdick/Wärstilä 1st unit will be built at Crist/Poland GL Deliverables Analysis and Verification, Newbuilding Classification, Plan Approval, Newbuilding Supervision, Fleet in Service GL Noble Denton Deliverables FMEA for DP2 system Facts Large Deck Area ~ 135 x 42 m, DP2, 12kn, 120 compartments, 50m waterdepth, 4 legs, rack & pinion jacking system, main crane 31,5m, 8.000t loading capacity Offshore Service Vessels for Wind Farming No. 15 Source: BHO

16 Generation III - WTIS for Swire Blue Ocean 1st unit will be built at SHI/South Korea GL Deliverables Analysis and Verification, Newbuilding Classification, Plan Approval, Newbuilding Supervision, Fleet in Service GL Noble Denton Deliverables Detailed Engineering for the Jacking System FMEA for DP2 Source: Swire Blue Ocean Facts ~ 155 x 50 m, DP2, 13kn, 111 compartments, 75m waterdepth (with leg extension), 4300 m 2 deck area, 6 legs, rack & pinion jacking system, main crane 31m Offshore Service Vessels for Wind Farming No. 16

17 Agenda Market Outlook and Vessel Prognosis Design Concepts Wind Turbine Installation Ships Rules and Regulations Maintenance and Supply Vessels Summary Offshore Service Vessels for Wind Farming No. 17

18 Rules and Regulations A Class Challenge Is it a ship? Is it a jackup? Is it a heavy lifter? Is it a passenger vessel? Offshore Service Vessels for Wind Farming No. 18

19 Rules and Regulations A Class Challenge It s all of the above at the same time! Hybrid concept has to fulfil various, sometimes contradictory rules and regulations simultaneously Offshore Service Vessels for Wind Farming No. 19

20 Agenda Market Outlook and Vessel Prognosis Design Concepts Wind Turbine Installation Ships Rules and Regulations Maintenance and Supply Vessels Summary Offshore Service Vessels for Wind Farming No. 20

21 Heavy Lift Construction is a big challenge European projects require around newbuildings of WTIS until But Supply Vessels are the neglected Vessel Segment. For European wind parks alone we estimate a demand of units of Crew Supply, Construction Support and Maintenance Vessels. Significantly higher numbers will be demanded once Asian and North American offshore wind markets mature. Offshore Service Vessels for Wind Farming No. 21

22 Agenda 1. Market Outlook and Vessel Prognosis 2. Design Concepts Wind Turbine Installation Ships 3. Rules and Regulations 4. Maintenance and Supply Vessels 5. Summary Offshore Service Vessels for Wind Farming No. 22

23 Summary Offshore Windfarming rapidly growing market Main bottleneck are Installation Vessels and Supply Vessels WTIS are highly sophisticated projects with challenging surrounding conditions Key Success Factors for WTIS are reliability and flexibility GL Group supports you across all relevant steps of the Offshore Wind Value Chain Offshore Service Vessels for Wind Farming No. 23

24 Go Greener with GL! Rasmus Stute HoD Offshore Service Vessels