All our references and projects at a glance.>
In recent years, we have been able to implement a large number of projects in German offshore wind farms. Major projects are listed here on our reference page in the alphabetical order of the offshore wind farms or offshore structures.
wintershall dea-01
Vattenfallsvg-01
Trianel-01
TenneT-01
Siemens Energy-01
RWE-01
Nordsee One-01
Merkur-01
global tech 1-01
GE-01
EnBW-01
Filter
Lifting of a reactor
Service Category
Steel Construction & Repairs
Year
2017
Project
Wikinger
Client
Siemens Energy Global GmbH & Co. KG
Description
Replacement of radiators and repair of small coating damages on the reactors of the Wikinger OSS
Periodic inspection tripods
Service category
Inspection & testing, engineering & consulting
Year
2015, 2016, 2017, 2018, 2019, 2020, 2021
Project
Global Tech I
Client
Global Tech I
Description
Execution of the periodic inspections above water level on the tripods in the GT I offshore wind farm.
NEU
Service category
Inspection & testing, engineering & consulting
Year
2015, 2016, 2017, 2018, 2019, 2020, 2021
Project
Global Tech I
Client
Global Tech I
Description
Execution of the periodic inspections above water level on the tripods in the GT I offshore wind farm.
Modification of BL brackets
Service category
Steel Construction & Repairs, Welding
Year
2019
Project
Global Tech I
Client
Global Tech I
Description
Modification of boatlanding brackets into a welded construction on the OSS GT1
Inspection of Latchways
Service category
Inspection & Surveillance
Year
2015, 2016, 2017, 2018, 2019, 2020
Project
Global Tech I
Client
Global Tech I
Description
Inspection of 180 Latchway fall arrest systems at all locations, including the OSS in the GT I offshore wind farm.
Assembly works at tripods
Service category
Steel Construction & Repairs, Inspections & Surveillance
Year
2018, 2019
Project
Global Tech I
Client
Global Tech I
Description
Periodic inspection and coating repair of boatlanding, ladders and rest platform
Installation crane foundation
Service category
Steel Construction & Repairs, Welding
Year
2018
Project
Global Tech I
Client
Global Tech I
Description
Installation & welding of a new crane foundation on the OSS GT1
Inspections & repair works
Service category
Steel Construction & Repair, Welding
Year
2018, 2019
Project
Trianel wind farm Borkum
Client
Trianel GmbH
Description
Periodic inspection of ladders; repair coating; individual decks, viaual inspection/testing of GFK grating and checking torque of fastening at each platform, coating repairs
Baseline inspection
Service category
Inspection & Surveillance, Rope Access
Year
2020
Project
BorWin beta
Client
TenneT TSO
Description
Baseline inspection focusing on the platform’s underside, the legs as well as grouted joints, cable access tower and jack-houses. Performance of visual, endoscopic and NDT inspections.
Maintenance work sheet pile wall
Service category
Steel Construction & Repair, Welding
Year
2020, 2021
Project
Mittelplate
Client
Wintershall DEA AG
Description
Welding and corrosion protection work on sheet pile wall
Spot-Repair
Service category
Steel Construction & Repair
Year
2020
Project
Baltic II
Client
EnBW Energie Baden-Württemberg AG
Description
Coating repair on the foundation structures (boatlanding, ladders, rest platform, working platform
Replacement switchgears
Service category
Steel Construction & Repair
Year
2018, 2021
Project
Baltic II
Client
EnBW Energie Baden-Württemberg AG
Description
Replacement of a switchgear on sites
Periodic inspection
Service category
Inspection & Surveillance
Year
2020, 2021
Project
Merkur
Client
Merkur Offshore GmbH
Description
Periodic inspection of foundation structure (interior & exterior), coating repairs, ladder inspection, inspection of latchways sealed SRL, bolt inspection using by Intellifast
Heli-Deck inspection
Service category
Inspection & Surveillance, Rope Access
Year
2020
Project
SylWin alpha
Client
TenneT TSO GmbH
Description
Periodic inspection, bolt inspection and inspection of fastening elements by penetrant testing on the helideck of the SylWin alpha offshore converter station using by rope access
Modification CAT
Service category
Steel Construction & Repair, Welding
Year
2020
Project
HelWin alpha
Client
TenneT TSO GmbH
Description
General contractor for the rebuild of the Cable Access Tower on Helwin Alpha
Replacement bridge bearing
Service category
Steel Construction & Repair
Year
2019
Project
HelWin alpha
Client
TenneT TSO GmbH
Description
Replacement of bridge bearings
Modification BL
Service category
Steel Construction & Repair, Welding
Year
2020
Project
DanTysk OSS
Client
Vattenfall GmbH
Description
Modification and welding work on a boatlanding of OAP Dan Tysk
Installation Pins
Service category
Steel Construction & Repair
Year
2019
Project
DanTysk OSS
Client
Vattenfall GmbH
Description
Production and installation of new pins for centering boatlanding by means of rope access
Repair railings & gratings
Service category
Steel Construction & Repair, Welding
Year
2017
Project
Trianel wind farm Borkum
Client
Trianel GmbH
Description
Renovation and reinforcement of railings on a crossover platform on the BW 0 OHVS, including restoration of corrosion protection and replacement of defective and missing gratings.
Enclosing of cable hang-offs
Service category
Steel Construction & Repair, Engineering & Consulting
Year
2017
Project
Trianel wind farm Borkum
Client
Trianel GmbH
Description
Design, supply and manufacture of enclosures for cable hang-offs on the BW 0 OHVS.
GFRP swing gates
Service category
Installation
Year
2017
Project
Trianel wind farm Borkum
Client
Trianel
Description
Supply and installation of swing gates made of glass-fibre reinforced plastic for the creation of traffic light accesses on the BW 0 OHVS.
Crack detection and coating repair on tripod
Service category
Inspection & Surveillance, Steel Construction & Repair
Year
2017
Project
Trianel wind farm Borkum
Client
Trianel
Description
Surface crack detection and subsequent coating repair of a mechanical damage on the coating system of a tripod foundation structure.
Spot Repair
Service category
Steel Construction & Repairs
Year
2016
Project
BW 2 OHVS
Client
VIDELIO FUNA GmbH
Description
Spot repair of the coating on mountings of the door access system
Replacement of a winch base
Service category
Steel Construction & Repair, Engineering & Consulting
Year
2018
Project
Trianel wind farm Borkum
Client
Trianel GmbH
Description
Replacement of the base of a cable pulling winch with a weight of approx. 2.5 tonnes, including the preparation of installation procedures.
Baseline inspection
Service category
Inspection & Surveillance, Rope Access
Year
2016
Project
SylWin alpha
Client
TenneT TSO GmbH
Description
Baseline inspection focusing on the platform’s underside, the legs as well as grouted joints, cable access tower and jack-houses. Performance of visual and NDT inspections.
Production inspection
Service category
Inspection & Surveillance
Year
2017, 2018
Project
Merkur
Client
Merkur Offshore GmbH
Description
Production inspection within the scope of the final assembly and equipment of transition piece structures.
Monitoring offshore work
Service category
Inspection & Surveillance
Year
2018
Project
Merkur
Client
Merkur Offshore GmbH
Description
Monitoring of the assembly and residual work on the transition piece structures of the Merkur offshore wind farm.
Dismantling of mounting brackets
Service category
Steel Construction & Repair, Rope access
Year
2016
Project
Meerwind Süd/Ost
Client
GE Grid GmbH
Description
Dismantling of angle sections below the helicopter deck.
Replacement fire main
Service category
Steel Construction & Repair
Year
2016
Project
Meerwind Süd/Ost
Client
GE Grid GmbH
Description
Replacement of the fire main of the helicopter deck on the Meerwind Süd/Ost OSS.
Reconstruction staircases
Service category
Steel Construction & Repair
Year
2016
Project
Meerwind Süd/Ost
Client
GE Grid GmbH
Description
Reconstruction work on the staircases, including the replacement of all steps and their supports in the stairwells on the Meerwind Süd/Ost OSS.
Approval of Söll ladders
Service category
Inspection & Surveillance
Year
2015
Project
Meerwind Süd/Ost
Client
GE Grid GmbH (Alstom Grid)
Description
Approval of Söll fall arrest ladders
Completion of outstanding points
Service category
Steel Construction, Engineering & Consulting, Welding
Year
2015
Project
Meerwind Süd/Ost
Client
GE Grid GmbH (Alstom Grid)
Description
Independent completion of outstanding steel construction and welding works on the Meerwind Süd/Ost OSS. Project coordination for the completion of specified items.
Replacement of a medium voltage
Service category
Steel Construction, Engineering & Consulting
Year
2017
Project
Meerwind Süd/Ost
Client
GE Grid GmbH
Description
Execution of the mechanical part of replacing a large medium voltage transformer, including the design and establishment of load distribution and temporary reconstruction measures on the Meerwind Süd/Ost OSS.
Non-destructive material
Service category
Inspection & Surveillance
Year
2015
Project
Meerwind Süd/Ost
Client
GE Grid GmbH (former Alstom Grid)
Description
Non-destructive materials testing (magnetic particle inspection) at various locations of the Meerwind Süd/Ost OSS.
Installation containers
Service category
Steel Construction, Engineering & Consulting, Rope Access, Welding
Year
2017
Project
Global Tech I
Client
Global Tech I
Description
Installation and welding of steel foundations for living containers on the upper deck of the Global Tech I OSS, and installation of cables, pipes, and connections for fresh and waste water to the platform system.
Installation of maintenance walkways and ladders
Service category
Steel Construction & Repair, Welding
Year
2016
Project
Global Tech I
Client
Global Tech I
Description
Mounting and welding of ladders, lifting aids and maintenance walkways on the structure of the platform crane on the Global Tech I OSS.
Installation of a material davit
Service category
Structural steel construction, welding technology
Year
2016
Project
Global Tech I
Client
Global Tech I
Description
Mounting and welding of a foundation for a lifting aid on the Global Tech I OSS.
Construction guard rail gates
Service category
Steel Construction & Repair, Welding
Year
2016
Project
Global Tech I
Client
Global Tech I
Description
Construction of guard rail gates for the creation of traffic light accesses, including installation of lighting equipment and cable routes on the Global Tech I OSS.
Replacement of reactors
Service category
Steel Construction & Repair
Year
2016
Project
Global Tech I
Client
GE Grid GmbH
Description
Design and installation of a lifting aid for lifting and moving a medium voltage reactor and performance of the lifting operations.
Reconstruction work lifeboat
Service category
Steel Construction & Repair, Rope Access
Year
2016
Project
Global Tech I
Client
Global Tech I
Description
Modification of lifeboat fenders and access on the Global Tech I OSS.
Close-range markings
Service category
Steel Construction & Repair, Welding
Year
2018
Project
HelWin beta
Client
TenneT TSO GmbH
Description
Design, manufacture, delivery and offshore installation of frames and sheet metal panels for the close-range marking of the HelWin beta offshore substation.
Deconstruction container foundations
Service category
Steel Construction & Repair, Welding
Year
2018
Project
HelWin beta
Client
TenneT TSO GmbH
Description
Deconstruction of container foundations for temporary living containers on the HelWin beta.
Modification firefighting equipment
Service category
Steel Construction & Repair, Welding
Year
2019 / 2020
Converter Platform
BorWin beta
Customer
TenneT TSO GmbH
Description
Replacement / modification of the fire fighting eqipment with a welding construction on the helicopter landing deck
Periodic Surveillance
Service category
Inspection & Surveillance, Rope Access
Year
2019, 2020
Project
Arkona
Client
RWE Renewables GmbH
Description
Persiodic surveillance on wind turbines with rope access
Inspection screw connections
Service category
Inspection & Surveillance
Year
2016
Project
HelWin alpha
Client
TenneT TSO GmbH
Description
Inspection of screw connections of secondary steel attachments such as walkways and platforms on the HelWin alpha.
Reinforcement bridge landing
Service category
Welding
Year
2017
Project
DolWin alpha
Client
b.offshore / GE Grid
Description
Installation and welding of a 4.5 t reinforcement for the bridge landing on the DolWIn alpha.
Inspection fall arrest system
Service category
Inspection & Surveillance
Year
2016
Project
Topside – DanTysk OAP
Client
Semco Maritime GmbH
Description
Expert inspection of a fall arrest system (rail system) on the topside of the DanTysk OAP.
Visual inspection grout pipes
Service category
Inspection & Surveillance
Year
2016
Project
Jacket of DanTysk OAP
Client
Semco Maritime GmbH
Description
Visual inspection of the grout pipes of the DanTysk OAP using an inspection camera.
Test installation BL
Installation fall arrest system
Service category
Steel Construction & Repair, Rope Access
Year
2016
Project
Jacket of DanTysk OSS
Client
Semco Maritime GmbH
Description
Installation of a fall arrest system (rail system) on the jacket’s access ladder.
Various climbing work
Baseline inspection
Service category
Inspection & Surveillance, Rope Access
Year
2016
Converter Platform
BorWin beta
Client
TenneT TSO GmbH
Description
Baseline inspection focusing on the platform’s underside, the legs as well as grouted joints, cable access tower and jack-houses. Performance of visual, endoscopic and NDT inspections.
Replacement CAT link
Service category
Steel Constructions & Repair, Welding
Year
2018
Project
BorWin beta
Client
TenneT TSO GmbH
Description
General contractor for the replacement of the connection elements between Cable Access Tower and platform (CAT link), including project management, engineering, manufacturing, coating and offshore installation as well as dismantling of the existing CAT link elements.
Crane operation
Service category
Steel Construction & Repair
Year
2015
Project
Baltic II
Client
GE Grid GmbH (former Alstom Grid)
Description
Execution of all crane work on the Baltic 2 OSS. Development of procedures and coordination of diving work.
Removal of ballast frames
Service category
Steel Construction & Repair, Welding
Year
2015
Project
Baltic II
Client
GE Grid GmbH(former Alstom Grid)
Description
Removal and disassembly of two ballast frames made of steel beams.
Installation BL
Service category
Steel Construction & Repair, Engineering & Consulting, Rope Access
Year
2015
Project
Baltic II
Client
GE Grid GmbH (former Alstom Grid)
Description
Installation of a boat landing on the Baltic 2 OSS, including planning, development of procedures and coordination of diving work.
Magnetic particle inspection
Service category
Welding, Inspection & Surveillance
Year
2016
Project
Baltic II
Client
GE Grid GmbH
Description
NDT (magnetic particle inspection) of weld seams on the Baltic 2 OSS.
Installation fall arrester
Service category
Steel Construction & Repair
Year
2016
Project
Baltic II
Client
GE Grid GmbH
Description
Installation and initial inspection of glide rails as fall protection on the stairwells of the Baltic 2 OSS.
Installation rainwater pipes
Service category
Steel Construction & Repair, Rope Access
Year
2016
Project
Baltic II
Client
GE Grid GmbH
Description
Installation of rainwater pipes below the Baltic 2 OSS by rope access technicians.
Cable protection roofs
Service category
Steel Construction & Repair, Rope Access
Year
2016
Project
Baltic II
Client
GE Grid GmbH
Description
Installation of cable protection roofs in the area between topside and jacket of the Baltic 2 OSS.
Removal ladders
Service category
Steel Construction, Rope Access
Year
2017
Project
Baltic II
Client
GE Grid GmbH
Description
Removal of approx. 120 running metres of Söll fall protection ladders on the Baltic 2 OSS.
Welding of position locks
Service category
Welding, Rope Access
Year
2016
Project
Baltic II
Client
GE Grid GmbH
Description
Welding of 128 position locks on the Baltic 2 OSS, partly by industrial climbers, including finishing of the weld seams and surface crack detection.
Secondary steel components
Service category
Steel Construction & Repair, Rope Access
Year
2017
Project
Baltic II
Client
GE Grid GmbH
Description
Disassembly of four crossover platforms on the Baltic 2 OSS and subsequent reassembly of the components.
Periodic inspection
Service category
Inspection & testing, rope access technique
Year
2017 – 2019
Project
Baltic 2
Client
EnBW
Description
Periodic indoor and outdoor inspection above water level of the Baltic 2 OSS.
Periodic inspection Baltic II
Service category
Inspection & Surveillance, Rope Access
Year
2017, 2018, 2019
Project
Baltic II
Client
EnBW Energie Baden-Württemberg AG
Description
Periodic indoor and outdoor inspection above water level of 11 transition pieces and 9 jacket structures at the Baltic 2 offshore wind farm.
Periodic inspection Amrumbank
Service category
Inspection & Surveillance, Rope Access
Year
2016, 2017, 2018, 2019, 2020
Project
Amrumbank West
Client
E.ON Climate & Renewables GmbH (since end of 2019 part of RWE Renewables GmbH)
Description
Visual inspection of difficult to access areas using the rope access technique. Torque testing of screw connections of the secondary steel components at all 80 transition pieces at the Amrumbank West offshore wind farm.
