Bird collision avoidance radar

Bird Collision Avoidance Study

The ORJIP Bird Collision Avoidance Study aims to use innovative methodologies to understand how bird interact with offshore wind farms to provide a robust evidence base

How birds interact with offshore wind farms and their behaviour around and within wind farms is unknown which can limit and delay the offshore wind permitting process. Tools exist to quantify the avoidance behaviour and risk of collision but rely on assumptions. Up until now, the empirical evidence bird behaviour within an operational wind farm to inform Environmental Impact Assessments for offshore wind farm developments has been limited.

The Offshore Renewables Joint Industry Programme (ORJIP) Bird Collision Avoidance Study, which started in March 2014, was the first of its kind and employed a multi-sensor monitoring system to track birds within and around the wind farm, providing results that will significantly progress our understanding of how birds interact with offshore wind farms.

Niras and DHI were contracted to install state of the art monitoring equipment at Vattenfall’s Thanet Offshore Wind farm to monitor micro, meso and macro bird avoidance behaviours.

The project aims to provide robust, substantive, empirical evidence on the levels of avoidance behaviour and collision to improve collision risk models and therefore greater certainty on the true impact of offshore wind farms on marine birds.

This will encourage the use of proven, practical and cost-effective monitoring systems to gather an empirical evidence base to reduce uncertainty for developers, advisors and regulators during collision risk modelling for permitting applications.

Bird collision avoidance camera

A thermal camera, positioned on a turbine, used on the bird collision avoidance study

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