UK, Denmark to Study Bird Collision Risks at OWFs

DHI United Kingdom (UK), in collaboration with NIRAS UK and BirdLife Denmark, has been awarded an innovative research project investigating collision risks of birds at offshore wind farms. 

UK, Denmark to Study Bird Collision Risks at OWFs

The problem of birds colliding with turbine blades is one of the most significant predicted environmental impacts of offshore wind farms. In order to minimize the future risk of offshore wind farm developments failing to gain consent, further robust evidence on avoidance behavior is required.

As part of the Offshore Renewables Joint Industry Programme (ORJIP) – managed by the Carbon Trust – this technically challenging project will seek to quantify and interpret avoidance behavior of key marine bird species. The results will help refine the assumptions used to estimate bird collisions and avoidance behavior at offshore wind farms. The organizations will be responsible for the technical and scientific aspects of the two-year project, including:

  • deploying bird radars at offshore wind farms to track bird movements outside and inside the wind farm
  • Collecting and analyzing data in collaboration with BirdLife Denmark, with NIRAS UK identifying species with bird observers
  • conducting predictive modelling to apply the project results to other offshore wind farms outside the study area

The radars will be linked to high-resolution Target Acquisition and Designation cameras to maximize the usefulness of the data. First, the radars will identify potential bird targets. The cameras will then pick up the radar signal and record video while tracking bird movements. According to DHI, this innovative approach is a vital step towards developing the evidence base – as well as a benchmark – for future monitoring approaches.

The principal study area will be Vattenfall’s Thanet Offshore Wind Farm off the coast of Kent in South-East England. The organizations will also collect data at other sites around the UK and Europe to extend the validity of the results.

This is a major research project within the ORJIP portfolio and exceeds the scale of previous UK projects on bird collision and avoidance. It aims to provide the scientifically robust approach needed to ensure that future applications and Environmental Impact Assessments (EIAs) are founded on evidence-based conclusions.

Press Release, May 09, 2014; Image: seabirdgroup
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