Environment

Respecting the natural environment

When building offshore wind farms, we work intensely to protect and minimise the impact on the environment. Caring for the natural environment is crucial in the construction process for our projects. We go over and above our licence requirements wherever we can in order to survey and protect the habitats and species we encounter.

Comprehensive environmental surveys are carried out in order to secure that minimum harm will be made to the environment due to the wind farm.

Monitoring of the environment will take place both during the construction and operation of the wind farm. The data is then used to test impact predictions and the success of mitigation measures. Monitoring can also be used to improve impact predictions and assessments for future projects and this together with the implementation of mitigation measures will secure that no major impacts occur.

Creating new artificial reefs to the benefit of marine life

When building offshore wind farms it is sometimes necessary to move large boulders from the seabed in order to make room for cables or foundations. At Anholt Offshore Wind Farm, Wind Power has been able to contribute in a positive way to the restoration of nature in the seas in connection with the construction.

More than 5,800 large stones with sizes ranging from nearly one metre to four metres in diameter have been relocated to make space for the cables and foundations for the wind farm. These large stones were used for creating 25 new artificial reefs within the wind farm. They promote the biodiversity in the Danish waters surrounding the Kattegat.

The reefs have been constructed in cone-shaped cavitation rock formations which give optimal breeding and habitat conditions for the flora and fauna that live on and by reefs. The cavities in the reefs attract lobsters, crabs and a variety of gadidea. Moreover, various types of seaweed are growing on the reefs.

Protecting animal life

When constructing offshore wind farms we are sometimes responsible for the installation of the onshore export cable that connect the offshore wind farm to the onshore substation. The installation will often be in open trenches and a corridor of approximately 15-20 meters will be affected by the installation work. During the installation work habitats can be affected. In this case, we will take action to preserve the affected animals, and measures are therefore implemented on the basis of pre-construction surveys.