deme, dredging international
DESCRIPTION
Wind Farm Thornton Bank Phase I. Dordrecht, 5 maart 2008TRANSCRIPT
WIND FARM THORNTON BANK PHASE I
Hydrographic Society Benelux – Dordrecht 05 maart 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
Project
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 3
Project
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 4
Project
The Project THORNTON WIND FARM
Phase 1 6 WTG’s, 1x 150kV marine cable to be operational in 2008
Phase 2 18 WTG’s, offshore trafo platform to be operational in 2010
Phase 3 18 WTG’s, 1 x 150 kV marine cable to be operational in 2011
Phase 4 18 WTG’s to be operational in 2012
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 5
Phase 1
Phase 2
Phase 3
Phase 4
Trafo
Phases
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 6
60 wind turbines 5 MW
Installed capacity 300 MW
Annual generation 1000 GWh
Annual consumption of 600.000 inhabitants
Avoided CO2 emission: 450.000 tonnes/year ~ forest 90.000 ha
C-Power NV is a Belgian company established for the development and implementation of a farshore wind farm on the Thorntonbank.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 7
Client
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 8
Shareholders:
Project Lenders: Owner’s Engineer: Certification Bodies:
The Client: C-POWER
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 9
Objective
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 10
In the context of the world climate conferences and the Kyoto declaration, Belgium has accepted the obligation to reduce greenhouse gasses emissions with 7.5% by 2010 compared to the 1990 emissions level.
source: Belgium’s Greenhouse Gas Inventory (1990-2004) – April 2006
Green House Gas emissions contribution by sector in 2004
Industry (Energy)20,1%
Transport18,5%
Other (energy)21,8%
Fugitive emissions0,4%
Agriculture7,7%
Solvent and Other Product Use
0,2%
Energy Industries20,1%
Waste1,1%
Industries (processes)
10,2%
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 11
Evolution Green House Gas emissions for the period 1990-2004
source: Belgium’s Greenhouse Gas Inventory (1990-2004) – April 2006
In the context of the world climate conferences and the Kyoto declaration, Belgium has accepted the obligation to reduce greenhouse gasses emissions with 7.5% by 2010 compared to the 1990 emissions level.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 12
primaryenergy need
100%
objective2010: 12%
share1999: 6%
renewable energy
EU objective renewable energy
In accordance with the Kyoto agreement and the world climate conferences, a European Directive (EU/77/01) was issued on 27 September 2001. The EU target aims at generation from renewable energy sources corresponding to 12% of primary energy requirements by 2010.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 13
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Source: EWEA
Renewable Energy Production: %/ 1997
EU Renewable Energy Production Objective: %/ 2010
The graph below shows that Belgium (and Luxembourg) has been given the lowest target in absolute terms (6%).Since there are so few renewable forms of energy installed here, in relative terms Belgium has to achieve the greatest increase (x6) in renewable forms of energy in the whole European Union.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 14
At present wind energy is capable of making the most economical and realistic contribution towards achieving this desired increase in renewable energy sources.
European wind energy increase
0
10000
20000
30000
40000
50000
60000
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Source: EWEA
0
1000
2000
3000
4000
5000
6000
7000
8000
Installed wind power capacity (MW)
Yearly increase (MW)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 15
At present wind energy is capable of making the most economical and realistic contribution towards achieving this desired increase in renewable energy sources.
Global cumulative installed capacity 1995-2007
4800 6100 7600 1020013600
1740023900
31100
39431
47620
59322
74133
94122
-5000
5000
15000
25000
35000
45000
55000
65000
75000
85000
95000
1995 1997 1999 2001 2003 2005 2007
Source: EWEA
MW
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 16
1980 1995 2000 20041985 1990
50 KWh 24mØ 15m
100 KWØ 20m
500 KWØ 40m
600 KWh 43m Ø 50m
2.000 KWh 80mØ 80m
5.000 KWh 114mØ 124m
h= hightØ= rotor diameter
Source: EWEA
Moreover, a worldwide trend can be perceived towards larger installed capacities.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 17
Source EWEA / Make Consulting
The development of offshore wind
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 18
0%
1%
2%
3%
4%
5%
6%
7%
2004 2006-2008 2010
objective
c-power contribution
existing
To meet the European target for renewable energy, Belgium aims to generate 6% of its electricity from renewable energy sources by 2010. In this way it can fulfil the European target for Belgium.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 19
Location
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 20
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 21
The international borders and the outline of the Belgian Continental Shelf
(BCS)
Due to the relatively small area of Belgian territorial waters and the large number of limiting factors, the range of possible locations for offshore wind power parks is severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 22
Due to the relatively small area of Belgian territorial waters and the large number of limiting factors, the range of possible locations for offshore wind power parks is severely limited.
The location of the Thorntonbank
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
Due to the relatively small area of Belgian territorial waters and the large number of limiting factors, the range of possible locations for offshore wind power parks is severely limited.
Major international shipping routes
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 24
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
The various mile zones
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 25
Sand reclamation areas
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 26
The military zones
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 27
Gas pipes and telecom cables
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 28
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
Wildlife preservation areas
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 29
Radar range
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 30
The Flemish sandbanks outside the 12 NM zone
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
Dedicated area for offshore wind turbines
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
Wind Farm construction in the North Sea: current project proposals
A number of other uses have already been licensed within the BCS.The area available for new wind farms is therefore severely limited.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
Detail of the Thornton Bank showing all current user functions
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
The C-Power land area concession
Detail of the Thornton Bank showing all current user functions
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
The C-Power land area concession
The wind turbine configuration within the land area concession
Detail of the Thornton Bank showing all current user functions
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 36
0
5
10
15
20
25
30
0 5 10 15 20 25 30
Average distance to the coastt (km)
Avera
ge d
epth
(m
)
Project
Capacity (MW)km
offshore
depthm
year of constructio
nnumbe
rcapacity total
Vindeby (DK-Balt zee) 11 0.45 4.95 1.5 2-5 1991
Lely (NL-Noordzee) 4 0.5 2 0.8 5-10 1994
Tunö Knob (DK-Balt zee) 10 0.5 5 6 3-5 1995
Dronten (NL-Noordzee) 28 0.6 16.8 0.02 5 1996
Bockstigen (S-Balt zee) 5 0.55 2.75 4 5-7 1997
Blyth (UK-Noordzee) 2 2 4 1 8.5 2000
Between 1990 and 2000 the first trial projects for wind turbine parks at sea were built. These were characterised by wind turbines with low power and they were installed in very shallow waters close to the coast.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 37
Project
Capacity (MW)km
offshoredepth
mYear of
constructionnumber capacity total
Middelgrunden (DK-Balt Sea) 20 2 40 2-3 3-6 2000
Yttre Stengrund (S-Balt Sea) 5 2 10 7 8-10 2001
North Hoyle (UK-North Sea) 30 2 60 7-8 12 2003
Scroby Sands (UK-North Sea) 30 2 60 2,5 2-10 2004
Q7 (NL-North Sea) 60 2 120 23 20-25 2007
Robin Rig (UK-North Sea) 60 3 180 9 3-21 2008
0
5
10
15
20
25
30
0 5 10 15 20 25 30
Average distance to the coast (km)
Avera
ge d
epth
(m
)
From 2000 on nearshore multi-megawatt projects were developed in Europe.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 38
200515-208-10992.7536Noorzeewind (NL-Noordzee)
20036-9.59-141582.272Nysted-Rödsand (DK-Balt Zee)
20026-1414-20160280Hornsrev (DK-Noordzee)
200212-184-8232.310Samsø (DK-Balt Zee)
20007-10810.51.57Utgrunden (S-Balt zee)
totalcapacitynumber
Year of constructio
n
depth m
km offshor
e
Capacity (MW) Project
0
5
10
15
20
25
30
0 5 10 15 20 25 30
Average distance to the coast (km)
Avera
ge d
epth
(m
)
From 2000 on nearshore multi-megawatt projects were developed in Europe. C-Power’s partner and shareholder DEME is through her group companies involved in the offshore construction works of five of these projects.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 39
The Thorntonbank project will serve as a pioneering farshore project in Europe in terms of:
distance from the coast
average water depth
installed capacity
0
5
10
15
20
25
30
0 5 10 15 20 25 30
Average distance to the coast (km)
Ave
rage
dep
th (m
)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 40
Projects where C-Power partner and shareholder Dredging International and its sister companies of the DEME group were involved.
Utgrunden, Sweden
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 41
Projects where C-Power partner and shareholder Dredging International and its sister companies of the DEME group were involved.
Samsø, Demark
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 42
Projects where C-Power partner and shareholder Dredging International and its sister companies of the DEME group were involved.
Horns Rev, Denmark
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 43
Projects where C-Power partner and shareholder Dredging International and its sister companies of the DEME group were involved.
Nysted Rødsand, Denmark
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 44
Projects where C-Power partner and shareholder Dredging International and its sister companies of the DEME group were involved.
Beatrice Windfarm, Scotland
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 45
Windfarm related projects
Belgium, Westhinder 1993Piling works for the installation of a new meteostation in the North Sea.
UK, Lynn and Inner dowsing 1998Meteomast installation in the North Sea near Skegness
Sweden, Utgrunden 2000Monopile foundation and turbine installation.
Denmark, Horns Rev 2002Erosion protection works around windfarm monopiles
Denmark, Samsoe 2002Design, supply and installation of monopile foundations + wind turbines.
Belgium, Radartower Oostdijkbank 2002Construction & delivery of radar, transmission equipment, heli-platform & accommodation.
Denmark, Rodsand 2003Installation of offshore transformer station
Holland, Egmond aan Zee2003Foundation and installation of metomast.
Belgium, Thorntonbank 2004Soil investigation campaign incl. drilling, sampling, pressiometer testing & CPT testing.
UK, Greater Gabbard 2004Soil investigation campaign. Drillings up to 35 m below seabed.
UK, London Aray 2004Soil investigation campaign. Drillings and CPT’s to 50 m below seabed.
Scotland, Beatrice Field 2006Installation of windmill foundation and turbines.
UK, Gunfleets Sands 2007Soil investigation campaign. Drillings and CPT’s to 35 m below seabed.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 46
Wind Turbines
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 47
Rated power: 5 MW Rotor diameter: 126 m Hub height offshore: 94 m
Rated power: 5 MW Rotor diameter: 126 m Hub height offshore: 94 m
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 48
Nacelle weight: 315 tons dimensions: 18 x 6 x 6 m
Nacelle weight: 315 tons dimensions: 18 x 6 x 6 m
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 49
Tower section (2 parts) weight (each): 120 tons dimensions: 37,5 x 6 diam.
Tower section (2 parts) weight (each): 120 tons dimensions: 37,5 x 6 diam.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 50
Rotor Blade weight: 17.8 tons width: 4.6 m length: 61.5m
Rotor Blade weight: 17.8 tons width: 4.6 m length: 61.5m
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 51
Rotor Blade Static test: max. deformation 17 m
Rotor Blade Static test: max. deformation 17 m
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 52
18
4 m
10
2 m
184m
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 53
Next slide >>>
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 54
Design and manufacturing at Karlskrona
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
Marine High Voltage Cable
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 55
ABB (Sweden):
Design and manufacturing of the marine cables
1 x 38.000 m of 150 kV cable
(diam 22 cm, weight 81 kg/m)
6 x 500 m of 33 kV cable
(diam 13,6 cm, weight 26 kg/m)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 56
Construction phase
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 57
THV SEAWIND (Belgium):Marine and Electrical Infrastructure
Non integrated Joint Venture with Dredging International NV as JV sponsor/leader
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 58
Marine Infrastructure (Dredging International NV)
Soil investigation DI/GeoSea
Design GBF’s COWI
Construction of GBF’s CFE/MBG
Dredging activities DI
Installation GBF foundation layer Tideway
Marine Installation of GBF’s DI/SCALDIS
Backfill/ Infill of GBF’s DI/BDC/DBM
Scour protection around GBF’s DI/DBM
Lifting & installation Wind Turbines GeoSea
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 59
Construction phase
Soil investigation
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 60
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 61
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 62
Construction phase
Design GBF’s:
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 63
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 64
Physical modelling at DHI (Danish Hydrological Institute)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 65
Detail of a lifting lug
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 66
Construction phase
Construction of GBF’s:
- Construction of the gravity based foundations
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 67
NOORDZEE
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 68
Construction of GBF’s: Halve Maan Oostende
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 69
• Total weight GBF: 2.800 ton• Height: between 38,5 and 44 m • Diameter foot: 26 m
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 70
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 71
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 72
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 73
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 74
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 75
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 76
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 77
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 78
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 79
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 80
Status GBF’s
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 82
Construction phase
Dredging activities
Dredging and foundation w orks
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 83
Dredging of the loose sand layer (-24.0 TWA) by a TSHD
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 84
removal of spill and sedimentation just before placing GBF foundation layer
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 85
Construction phase
Installation GBF’s foundation layer
Dredging and foundation w orks
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 86
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 87
Fall pipe with ROV (remote operated vehicle)To place the stones within the required tolerancex
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 88
Construction phase
Marine Installation of GBF’s
Marine Installation of GBF’s
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 89
by shear leg floating crane RAMBIZ
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 90
Transport & installation of the gravity foundations
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 91
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 92
Construction phase
Backfill/Infill of GBF’s
Backfill / Inf ill of GBF’s
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 93
Multi purpose pontoon Thornton I
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 94
Backfill
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 95
Infill
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 96
Vlaanderen XXI
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 97
Construction phase
Scour protection
Scour Protection
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 98
Scour protection
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 99
-Filter layer 0.6mArmour layer 0.7m
Dumping grid
Multi purpose pontoon Thornton 1 using fall pipe facilities DP DT operated
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 100
Construction phase
Lifting & installation Wind Turbines
Lifting & installation Wind Turbines
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 101
Lifting of tower section
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 102
Lifting of nacelle
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 103
Lifting of nacelle
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 104
Rotor Installation
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 105
Construction phase
Electrical Infrastructure
Electrical Infrastructure
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 106
OFFSHORE (Dredging International NV)
Prelay dredging (Vaargeul 1) DI
Crossing existing PEC cable GeoSea/DEC
Landfall/ Dunecrossing (HDD) GeoSea
Cable laying & posttrenching Tideway
ONSHORE (Fabricom-GTI)
Cable laying & trenching FAB-GTI
Grid connection FAB-GTI
Electrical Infrastructure
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 107
Construction phase
Electrical Infrastructure
Landfall/ Dunecrossing (HDD)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
Landfall/ Dunecrossing (HDD)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 108
Landfall/ Dunecrossing (HDD)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 109
Landing of the h-v cable will take place by means of directional drilling (30m below dune surface)
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 110
Construction phase
Electrical Infrastructure
Crossing existing cable
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 1/10/2008
2007 2008
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 111
Prelay dredging (Scheur) with TSHD
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 112
Crossing existing PEC cable
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 113
Cable laying & trenching OFFSHORE
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 114
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 115
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 116
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 117
For submarine transportation the cables are buried in the sea bed.Consequently no high-voltage pylons will be built for the C-Power wind farm.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 118
HubRotor Bearings
GearboxConverter
Onboard-Crane
Transformer
Generator
Yaw System
In the wind turbine the power that is generated is transformed to a voltage level of 33,000 volts (33kV).The electric components of the REPOWER 5MW turbine are located in the rear part of the nacelle.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 119
Between the wind turbines a 33 kV cable network is laid for transportation of the power that is generated to the offshore transformer platform.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 120
On the offshore transformer platform step-up transformation takes place to transform the power that has been collected to a higher voltage (150 kV). This is necessary to limit wastage when transporting power over longer distances. The total distance from the transformer station at sea to the grid injection point on land is approximately 40km.
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 121
The TWO submarine cables (150kV) between the offshore transformer platform and the public 150kV grid on land are responsible for transporting the power that has been generated. For the submarine part of the route (about 36 km) the cables are buried in the sea bed.
22 cm
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 122
Planning
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 123
2007Site “Halve Maan”
• soil improvement works• foundation slabs and beams
Dune crossing (HDD)
Design of the GBF’sConstruction of the GBF’s Installation of the land cables
2008Finishing of the GBF’s
Installation of the appurtenances (boat landing, ladders)
Weighing and transport on land of the GBF’s
Transport on sea and installation of the GBF’s
Backfill / Infill of the GBF’s
Installation of the scour protection
Installation of the marine cables
Grid connection
Installation and commissioning of the WTG’s
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 124
ONSHORE ACTIVITIES- Construction of the gravity based foundations
- Execution beach and dune crossing
- Installation of the cable onshore betw een
the Godtschalckstraat and HV station Slijkens
OFFSHORE ACTIVITIES- Installation of the gravity based foundations
- Supply and installation of the cables offshore
- Installation of the w indturbines offshore
COM M ISSION AND START UP OF PHASE I 1/10/2008
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep
2007 2008
Overall planning
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 125
Investment Cost Phase 1 (6 WTG): € 152.8 million Development/
EngineeringInsurance
Finance
Contingency
Cable connection
Foundation
Windturbines
Cost
1. Project
2. Client
3. Objective
4. Location
5. Wind Turbines
6. Marine High Voltage Cable
7. Construction phase
8. Planning
9. Questions
10/04/2023 126
Questions
DEME : Creating land for the future