Contact
Grid connection systems

Multi-Year Framework for Offshore Infrastructure Services

DolWin Gamma

Project scope

Searenergy delivers integrated logistics and offshore support services for over 11 converter platforms commissioned by Siemens Energy in the German and UK sectors of the North Sea. The scope includes BorWin5, BorWin4/DolWin4, East Anglia 3, Norfolk Boreas, and Vanguard, among others.

Services cover the commissioning phase, with regular offshore cargo runs via Platform Supply Vessels, coordinated from base port in Emden. A proprietary logistics system ensures efficient handling of materials and provisions. Searenergy also oversees maritime coordination, managing vessel movements and goods flow offshore.

The contract includes optional services such as offshore professionals, catering, helicopter coordination, and additional vessels. Initial operations began with BorWin5, with further projects planned for TenneT, Amprion, RWE, and 50Hertz, including future 2GW projects.

Quick overview

  • •Regular offshore supply runs (PSV)
  • •Port services & warehousing (Emden)
  • •Onshore logistics interface
  • •Maritime coordination
  • •Offshore cargo handling
  • •Offshore professionals
  • •Catering & helicopter coordination
  • •Optional: CSOVs, EERVs, Guard Vessels

Facts

Client
Siemens Energy

Project Phase
Installation & Commissioning

Duration 
2025-ongoing

Related references

See all references
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Grid connection systems

Multi-Year Framework for Offshore Infrastructure Services

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German & UK North Sea · Siemens Energy
DolWin Gamma
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BorWin gamma HVDC converter platform​

Logistic Support Services

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|
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Marine & QHSE Services

Iberdrola
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Grid connection systems

Maintenance, Repair & Catering

TenneT Offshore GmbH, TenneT TSO B.V.
Dutch & German North Sea · TenneT Offshore GmbH, TenneT TSO B.V.
MEiC TenneT
Offshore wind industry

Cargo Run Service

Various
German & Dutch North Sea · Various
Cargo Run Service