deme’s experiences and developments within the tidal and ... · deme │ creating land for the...
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DEME’s experiences and developments
within the tidal and floating wind sector
ELBE Seminar
26/02/2019
Jan Goormachtigh
DEME Blue Energy/DEME Offshore
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Tidal Stream
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DEME │ CREATING LAND FOR THE FUTURE
Status of the tidal industry | examples small technologies (< 1 MW)
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► 3 x 100 kW array in operation (Shetlands, UK).
► Plans to increase to 600 kW by 2021
► Focusing on building up to FORCE site deployment (Canada)
► Plans to install up to 1.7 MW platform by 2020
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DEME │ CREATING LAND FOR THE FUTURE
Status of the tidal industry | examples large Technologies (> 1 MW)
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► 1.7 MW device > 12 GWh generated at MeyGen
► New 2 MW device to be deployed 2019
► 2 MW device > 3 GWh generated at EMEC, Scotland
► New 2 MW device O2 to be deployed 2020
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DEME │ CREATING LAND FOR THE FUTURE
MeyGen 1A
► 6 MW – 4 tidal energy converters
► Foundation type = gravity based
► 4x export cables already installed in 2015
► 4x TSS + 24x BB installed in October 2016
► 2x TTG installed end of 2016, 2x TGG installed beginning of 2017
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TTG
TSS
BBTTG
Tidal Turbine Generator (~200T)
TSS
Turbine Support Structure (250-300T)
BB
Ballast Block (200T)
Totals LxBxH = 25x20x25m W ≈1700T
DEME
scope
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DEME │ CREATING LAND FOR THE FUTURE
Installation Vessel Selection | Sea Trials Jack-Up Vessels
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JUP Goliath
Positioning and Jackingat Raz Blanchard, France
September 2015
DP2 Positioning, Jacking and Lifting at MeyGen site, Scotland
September 2016
JUV Neptune
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DEME │ CREATING LAND FOR THE FUTURE
Load-out | at Nigg Energy Park
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DEME │ CREATING LAND FOR THE FUTURE
Transportation | Sailing from Nigg to MeyGen site
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85 NM
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DEME │ CREATING LAND FOR THE FUTURE
TSS Installation
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DEME │ CREATING LAND FOR THE FUTURE10
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DEME │ CREATING LAND FOR THE FUTURE
Out-Survey | TSS positioned on rock seabed
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DEME │ CREATING LAND FOR THE FUTURE
TSS Installation | Retrieving of rigging system
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DEME │ CREATING LAND FOR THE FUTURE
Ballast Block Installation
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DEME │ CREATING LAND FOR THE FUTURE
Sea Trials Jack-Up Vessels
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DEME │ CREATING LAND FOR THE FUTURE15
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DEME │ CREATING LAND FOR THE FUTURE
BB Installation | Accurate positioning of BB on TSS leg
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DEME │ CREATING LAND FOR THE FUTURE
Lessons Learnt
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► JUV Neptune performance in high current area
› DP2 Positioning + Jacking successful
› Accurate lifting operations due to very stable platform
► Working in high current areas requires
› 24/7 minute-by-minute schedule and follow-up on actual current velocities
› Skilled & trained vessel crew (incl. lifting operators)
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DEME │ CREATING LAND FOR THE FUTURE
Tidal Stream | Areas of Interest
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Europe
► Scotland
► Ireland
► Wales
► France
World
► Canada
► Indonesia
► South-Korea
► Japan
Conclusion: Tidal industry gaining global momentum!
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Floating Wind
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DEME │ CREATING LAND FOR THE FUTURE
Floating Offshore Wind Market
► Floating deployment is forecasted to reach 5 GW by 2030
► Strategic support is required for floating technology to become cost competitive
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0
40
80
120
0
4
8
12
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
Cum
ula
tive c
ap
acity
(G
W)
Floating Seabed-fixed Floating cumulative Seabed-fixed cumulative
An
nual i
nsta
lled
capacity
(G
W)
Source: BVG Associates
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DEME │ CREATING LAND FOR THE FUTURE
Floating Offshore Wind Market
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► Europe Support based on economic activity or unlocking deployment in specific regions. France is most likely country to support commercial-scale deployment
► Asia Early commercial scale deployment is expected to first occur in Japan / Taiwan
► North America The US west coast and Hawaii have large deepwater resources but commercial scale deployment will be dependent on LCOE improvement
0
1
2
3
4
5
0.0
0.2
0.4
0.6
0.8
1.0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
Cum
ula
tive c
ap
acity
(G
W)
Rest of World annual Europe annual Rest of World cumulative Europe cumulative
An
nual i
nsta
lled
capacity
(G
W)
Source: BVG Associates
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DEME │ CREATING LAND FOR THE FUTURE22
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DEME │ CREATING LAND FOR THE FUTURE
DEME Offshore | Scope of Work
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► DIMCO
› Fabrication of concrete floater / gravity anchor
► GeoSea
› Installation of gravity anchors
› Installation floater or foundations
› Installation of wind turbine generators
► Tideway
› Installation of suction or drag anchors
› Subsea hookup of mooring and foundation
› Installation of interarray cables
› Installation of scour protection and ballast
► GeoSea Maintenance
› Major Component Exchange WTG
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DEME │ CREATING LAND FOR THE FUTURE
GeoSea | Meet the fleet
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DEME │ CREATING LAND FOR THE FUTURE
Installation Challenges
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DEME │ CREATING LAND FOR THE FUTURE
Installation Challenges
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► Specific challenges
› FoundationMotion compensated pile gripper
› Turbine installationBoom lock 3.0
› Blade installation / replacementSlide along the tower segment?
► In general
› Collaboration with WTG (and interface) manufacturers required
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This presentation contains proprietary and/or confidential information.
Any disclosure, copying, distribution or use of this information/the ideas incorporated is
strictly prohibited. This information is not to be considered as a representation of any kind.
Any intellectual and industrial property rights and any copyrights with regard to this
presentation, and the information therein, shall remain the sole property of DEME.