Request > Offshore wind farms

Cumulative impacts of offshore wind farms expansions: consequences & solutions for achieving GES across European marine waters

Summary

 

Type of request: Knowledge Synthesis

The aim of the request is to examine the multi-level impacts of the planned expansion of wind energy production at sea, including cumulative impacts on marine ecosystems and on the achievement of good environmental status (GES). This request is made in support of the implementation of the Marine Strategy Framework Directive and may also contribute to its ongoing review.

Requester:  European Commission’s Directorate-General for Environment (EC – DG ENV)

 

 

Funder:  EU Horizon Europe project “Connecting biodiversity knowledge and decision-making” – BioAgora.  BioAgora will develop the architecture and functionality of the new European “Science Service for Biodiversity” that will fully support the ecological transition required by the European Green Deal and the EU’s Biodiversity Strategy for 2030.

Expert Working Group
Read the Targeted Open Call for Experts
Methods Expert Group (MEG)
  • Alister Scott – University of Northumbria, UK.
  • Saloni Bhatia – Eklipse MEG Focal point, Ashoka Trust for Research in Ecology and the Environment, India.
  • Joseph Langridge – Eklipse MEG Focal point, La Fondation pour la Recherche sur la Biodiversité (FRB) / French Foundation for Biodiversity Research, France.
Knowledge Coordination Body (KCB) focal points
  • Aurore Maureaud – Eklipse KCB Focal point, Rutgers University, United States.
  • Jan-Claas Dajka – Eklipse KCB Focal point, Helmholtz Institute for Functional Marine Biodiversity, University of Oldenburg (HIFMB)
  • Ute Jacob – Eklipse KCB Co-chair, Helmholtz Institute for Functional Marine Biodiversity, University of Oldenburg (HIFMB).
Eklipse Management Body (EMB) contact points
  • Karla E. Locher (Helmholtz Centre for Environmental research (UFZ), Germany)
  • Marie Vandewalle (Helmholtz Centre for Environmental research (UFZ), Germany)

 

© Nicholas Doherty/Unsplash

The aim of the request is to examine the multi-level impacts of the planned expansion of wind energy production at sea, including cumulative impacts on marine ecosystems and on the achievement of good environmental status (GES). Such analysis is critically needed considering the increase in challenging targets for renewable energy sources that need to be achieved by Member States in the coming years, a large percentage of which are likely to be offshore. Existing studies on cohabitation between offshore wind energy production and nature tend to focus, in particular, on marine protected areas (MPAs) or the protection of species (e.g. birds). Existing knowledge misses an analysis relevant to all the dimensions (descriptors) of good environmental status as per the Marine Strategy Framework Directive (MSFD). Such analysis, which includes literature reviews and scenarios modelling, should look at how offshore wind energy expansion might affect the achievement of GES, considering the GES threshold values set by Member States for a number of GES criteria (such as seabed loss, impulsive noise, contaminant levels, species abundance, etc.) and the subsequent cumulative impacts. The study should empower the Commission to propose solutions, including in the context of the Member States’ MSFD Programmes of Measures and the MSFD review, to make sure that offshore wind energy expansion does not impede the achievement of GES under the MSFD, considering the entire lifecycle of offshore wind power plants (including their decommissioning), whatever the type of turbine (monopiles, floating, tripods, etc.). These solutions could, for example, relate to marine spatial planning (e.g. current developments in the context of the Greater North Sea Initiative), in particular considering the cumulative impacts of other human activities on the marine environment. Identification of other solutions (for instance technological) would also be welcome.

The planned developments of offshore wind production in order to achieve the targets set in EU and national legislation and policies are likely to be at such a large scale that they will have impacts on marine ecosystems and marine ecosystem functioning, including seabed habitat loss, disruption of migratory routes of mobiles species, including birds and cetaceans, deadly collisions with birds, disruption of feeding and breeding grounds of a number of species, underwater noise during development and maintenance, input of contaminants and litter and changes to hydrographical conditions. Almost all descriptors of good environmental status are likely to be impacted by these developments.

Timeline
  • Date request received by the EC Knowledge Centre for Biodiversity1 (KCBD): 6th of
    December 2023
  • Request received by BioAgora: 15th of December 2023
  • Request received by Eklipse: 30th of January 2024
  • Date of the first meeting with the requesters, Eklipse, KCB and MEG: 9th of February 2024
  • Launch Call for Knowledge (CfK): 06th of March 2024
  • Deadline Call for Knowledge (CfK): 12th of April 2024
  • Launch Call for Experts (CfE): 23rd of May 2024
  • Methods protocol open review: 6th until the 23 of September 2024.
Scoping phase

The scoping phase is the second step within the Eklipse process. It aims to refine the question, identify how Eklipse could provide added value by being involved, seek knowledge and expertise on the refined question via an open Call for Knowledge (CfK), and provide suggestions regarding methods and resources needed to answer the request.

A Call for Knowledge (CfK) was released as part of the scoping phase to identify research gaps and policy needs.

The Document of Work (DoW) described the results of the scoping activities and the background of the request and was the basis for the call for experts.

Answering the request

Selection of an Expert Working Group

To answer this request, Eklipse launched a Call for Expertise (CfE). We received 15 applications, from which 11 experts were selected in June 2024. These experts covered a broad range of expertise, gender and geographical representation to form the Eklipse Expert Working Group (EWG). One expert dropped out in the beginning due to unavailability.

Methods Protocol

The next step was for the EWG to develop a methodological protocol based on the DoW.

The methods protocol is now open for public review until the 30th of September, 2024. To provide your review, please check the Open Calls