Wind Energy – Red Blades Test
Extensive monitoring of multiple offshore wind farms in recent years has shown that collisions between seabirds and wind turbines are generally rare, as birds can detect and avoid the rotor area.

Nevertheless, continued research is important in order to reduce potential impacts further and support the responsible development of wind farms on a large scale.
The distinctive red blade is part of a carefully designed field study led by Ecowende in collaboration with Waardenburg Ecology, DHI and Robin Radar Systems. Vestas is supporting the production, delivery and installation of the blades.
The study will evaluate whether increased blade visibility can enhance avoidance behaviour, thereby contributing to efforts to minimise potential impacts on seabirds while supporting the continued expansion of offshore wind.
Lisa Malmquist Ekstrand, Vestas’ Vice President of Sustainability, says: “This trial builds on the scientific understanding that seabirds largely avoid offshore wind turbines. By testing additional mitigation measures like blade visibility, we can strengthen the evidence base and help raise the bar for nature-inclusive wind development.’
Following the evaluation of several colour options, red was selected based on performance criteria such as durability and heat management. The trial includes one red-coated blade (115.5 m) on each of seven V236-15.0 MW turbines, with several blade sets already en route to the Netherlands.
