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Nordergründe

Nordergründe is the third project within the twelve nautical mile zone of Lower Saxony for which TenneT has implemented a three-phase grid connection. This is both technically and economically the most efficient solution, as the Nordergründe wind farm is only around 30 kilometres from the coast.


Location
Niedersachsen, Nordsee
Type
Offshore
Category
offshore
Status
finished
Tags
  • Nordergründe
Nordergründe

About the project

32 kilometers long and 111 megawatts strong AC grid connection system

Grid connection Nordergründe

The 155 kilovolt connection has a total length of 32 kilometers and can transport up to 111 megawatts (MW) of clean wind power. The grid connection point for the Nordergründe offshore project is the Inhausen transformer station north of Wilhelmshaven, which was extended for this purpose in 2012. Here the electricity is transformed to 220 kV and fed into the 220 kV transmission grid.

Connecting concept

Due to the proximity to the mainland and the installed transmission capacity, the grid connection system was realised as a technically and economically efficient three-phase alternating current (AC) connection. The wind farm is directly connected to a coastal substation via subsea cable and a short underground cable on the mainland. Here, the green energy is directly fed into the respective voltage level.

Impressions

  • Nordergründe

    Nordergründe

  • cable retraction

    Nordergründe cable retraction

  • Nordergründe cable retraction

    Nordergründe cable retraction

  • Nordergründe cable retraction

    Nordergründe cable retraction

  • Nordergründe cable retraction

    Nordergründe cable retraction

  • Nordergründe cable retraction

    Nordergründe cable retraction

  • Nordergründe transformer transport

    Nordergründe transformer transport

  • Nordergründe

    Nordergründe

Contacts

Tim Dampmann

Tim Dampmann

Spokesperson - Projekt Offshore Communication

Further information