Enhancing marine life and mitigating coastal erosion with stone reefs
Assessing nature-based solutions to mitigate biodiversity impacts from offshore wind requires a broad perspective that extends beyond the wind farm, recognising that areas outside the operational zone offer opportunities for more effective and beneficial biodiversity interventions.
Short facts
- Island of Samsø, Denmark
- Marine fauna and flora, coastal ecosystems
- Investigate coastal stone reefs as a solution for coastal erosion and to support marine life.
- 2021–2028
To assess the potential of nature-based solutions, Vattenfall is actively following and co-funding with Velux Foundation, the BARREEF project, led by the National Institute of Aquatic Resources at the Technical University of Denmark (DTU Aqua).
A pilot on Samsø Island, Denmark, will test whether a stone reef deployed in 2025 can provide coastal protection while creating habitats for marine life. Coastal erosion is an increasingly important societal challenge, and traditional methods like beach nourishment can damage coastal ecosystems and exacerbate climate impacts.
In contrast, deploying coastal stone reefs has the potential to absorb wave energy, while also benefitting marine biodiversity. The project also involves discussions with local stakeholders and authorities to minimise harmful practices and improve climate resilience.
More about biodiversity
Biodiversity and nature protection are a priority at Vattenfall. It is one of the focus areas in our environmental policy and therefore also a central part in our environmental work.
See also
Impact of offshore windfarm decommissioning on marine biodiversity
Offshore wind foundations create habitats that support benthic species such as blue mussels, anemones, and the reef-building worm Sabellaria alveolata.
Exploring potential electro-magnetic disturbance in wild porpoises
There is critical knowledge gap concerning the potential impact of electromagnetic fields (EMF).
Biotope restoration and species protection
Biotope restoration and species protection play a vital role in adapting hydropower to the environment.