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ABB

Subsea substation

A current challenge to increase the cost efficiency of the offshore wind industry is the capex and operational cost of the electrical distribution system including offshore substations.

A clear alternative to a traditional topside is to locate the substation subsea: it can be placed near the wind farm in deep waters enabling significant cost reductions, it does not affect negatively coastal communities or activities in the area, and it does not present challenge with dynamic high voltage cables.

Present technology status is TRL6-7 for 200MVA at 132kV / 33kV. To close the gap for 400MVA+ at 220kV / 66kV which is at TRL4 today, connector technology upgrades are required.

ABB has supplied more than 35 subsea transformers since the late 1990's and no failures has been reported.
TRL
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Offshore Wind

Offshore Wind

ABB

Electrical system design and integration

A current challenge to increase the cost efficiency of the offshore wind industry is the capex and operational cost of the electrical distribution system including offshore substations.

ABB can design and integrate the electrical system for HVAC offshore substations. ABB has a proven engineering knowledge to find the right system for optimized Levelized Cost of Energy (LCOE)

With the carve out of its Power Grids business, ABB is flexible with regards to sub supply selection for HV electrical equipment. Sub suppliers can include Hitachi ABB Power Grids, GE, Smit, Chem and others. ABB furthermore has a solid experience in delivering modular packages, such as e-houses, to offshore applications.
TRL
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Offshore Wind

Offshore Wind

ABB

Industrial control

ABB can deliver a complete industrial control system (including SCADA, control, LV distribution, telecommunication, etc.) to both HVAC and HVDC offshore substations.

ABB will design the system for optimized LCOE, lowest possible maintenance requirement, and maximizing the potential for operational value.
TRL
01234567
Offshore Wind

Offshore Wind

Wood

Fixed and floating substructures

Strong competence in a wide range of engineering services related to offshore wind substructures, backed by proven competence from decades of experience on offshore oil and gas systems. Specialized in design and support of fixed and floating offshore structures in all stages of the asset life cycle. Our main competences include:

-Hydrodynamic and stability analysis of floating offshore structures
-Wave load analysis and global structural analysis of offshore structures
-FEM structural analysis
-Mooring analysis
-Air gap analysis of semisubmersibles
-Support to yards and owners during newbuilding, conversion projects and special periodic surveys
-Scantling, arrangement and workshop drawings of structures
-Project/engineering management
-Procurement services
-Automation and controls
TRL
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Offshore Wind

Offshore Wind

Multiconsult

Environmental and social impact assessment

Marine environment, marine mammals, fish and seabirds
Fisheries and aquaculture
Sea transport and navigation
Visual impact
Cultural heritage
Climate and pollution
Local, regional and national economic benefits
TRL
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Offshore Wind

Offshore Wind

Multiconsult

Geotechnical engineering – Design, verification and advisory services

Geotechnical engineering:
- Subsea structures
- Anchors and mooring systems
- Suction buckets
- Monopile foundations
- Offshore soil investigations – spec and data interpretation
- Installation support
TRL
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Offshore Wind

Offshore Wind

Multiconsult

Advanced structural analyses

Offshore topsides and substructures
- Fixed and Floating Installations
- Global and Local Analyses
- Integrated Global Analyses
- Truss, Plate and Shell Structures
- Advanced Fatigue Analyses
- Non-linear Analyses
Subsea structures and foundations
- Foundation Engineering and Structural Design
- Soil-structure Interaction
- Non-linear Buckling Analyses
TRL
01234567
Offshore Wind

Offshore Wind

Multiconsult

Marine & cold climate engineering

Field measurement of physical environment
Metocean design basis
Wind and wave modelling
Hydrodynamic response and loads
- Representative global structural model
- Dynamic wind and wave loads
- Non-linear analyses
Fluid mechanics
Ice load calculations
Sea/ice spray interaction on structures
TRL
01234567
Offshore Wind

Offshore Wind

Multiconsult

Power system engineering

Onshore substations
Cable and transmission lines
Grid connection of wind farms
Advanced calculations
Complete transformer substation design
3D/BIM expertise
Experience with extra high voltage
HVDC systems for offshore wind
All phases from concept to commissioning
TRL
01234567
Offshore Wind

Offshore Wind