Første skib på vej mod kommende energiøer

Energy Islands in Denmark – nature and the environment

The first ship has set out into the North Sea to map the seabed. The establishment of the future energy island must take place with the greatest possible respect for nature and the environment. 

Would you like to join the ship on its first trip into the North Sea? Watch the movie below and follow the activities as we progress.

On 3 May the ship Relume set out to conduct thorough investigations of the seabed. Follow their preparations and join the ship as it heads towards the coming energy island in the North Sea.

The North Sea investigated for effects from the world's largest naval battle

Part of the battle of Jutland took place very close to the area that Energinet is investigating in connection to the energy island in the North Sea.

Click here to learn more about the battle of Jutland and listen to Gert Normann Andersen, Director at Sea War Museum Jutland in Thyborøn, as he talks about the hunt for history.

Energinet brings focus to nature and the environment connected to the energy islands. Please contact

In search of locations for 70-metre deep holes

Two special-purpose vessels are scanning a vast area of the North Sea to provide accurate imaging of the seabed – and what lies beneath it. The seabed under the future energy island and a series of new offshore wind turbines is being mapped.

The soil layers below the seabed are mapped using seismic equipment. Seismic equipment transmits sound waves that are ‘stopped’ by soil layers such as boulder clay, rocky layers or soil layers containing gas. 

Read more about the geophysical investigations here. 

Graphic representation of seismic measurement data from the North Sea seabed, May 2021. From the vessel Relume. 

The vessels survey

  • What the sea depth in the area is – 20, 30, 50 metres?

  • What the seabed consists of – solid ground, soft ground, rocky ground?

  • Whether the seabed is stable – sand migrations or mobile seabed?

  • Whether the seabed is already home to other things – shipwrecks, naval mines, existing pipelines, animal habitats? 

Energy islands taking flora, fauna and bats into consideration

Energinet is collecting information from the preliminary studies which will form the basis for the future work of designing and constructing energy islands, offshore wind farms and the intervening infrastructure.

Read more here. 



  • The environment and nature studies are expected to start in autumn 2021.
  • Factors will be investigated separately for the North Sea and the Baltic Sea, as the conditions are different.
  • The geophysical conditions in the North Sea are currently being mapped. The seabed and soil layers are being examined, with the aim of describing how foundations for wind turbines and the like can be established with minimal environmental impact.

Maritime spatial plan and marine strategy to ensure a good marine environment in Denmark


Read more

Energinet conducts preliminary studies at sea at the coming energy islands, among other things to take care of the marine environment.

But how is the Danish marine environment actually doing, and what is being done to improve it?

Read more here.