Visual markers applied to power lines can help to attract flying birds’ attention earlier and avoid collision. Thus, grid operators apply 'wire markers' (or bird flight diverters) to lines in high-risk areas. However, with many products on the market and a multitude of factors influencing how effective markers are in reducing collisions, it can be difficult for grid operators to get an overview of what the science says regarding best practice in wire marking.
Against this background, RGI undertook a research and communication initiative and created a global overview of available research. This work has been guided by the advice and support of several experts from academia, grid operation and civil society. The purpose of this initiative is to provide a visual summary of available research on wire marker effectiveness and the factors influencing collision risk, to help inform the decision basis for collision-risk mitigation measures.
This initiative was launched in the context of the collaborative conference 'Wingspan: Partnerships for a bird-friendly energy transition'.
In case of questions, please contact Liam Innis at liam@renweables-grid.eu.