Light Reduction on The Dutch Coast: Lanthan Safe Sky Equips More Than 160 Wind Turbines in the Netherlands With BNK Technology

Walldorf (Germany) - In the Dutch province of Flevoland, another major project for the deployment of on-demand night-time marking (BNK) on wind turbines has gone into operation. The BNK technology used in the project is provided by the BNK specialist Lanthan Safe Sky (LSS), based in Walldorf.

BNK systems switch on the obstacle lights of turbines only when an aircraft is actually detected. By significantly reducing the continuous operation of these lights, both local residents and the natural environment in light-sensitive coastal areas are expected to benefit.

For the three wind farms that make up the Noordoostpolder project, the system has been fully activated and is now reducing the nocturnal light emissions of the installations. The Noordoostpolder project cluster includes the Westermeerwind wind farm with 48 turbines near the coast, NOP Agrowind with 26 Enercon turbines, and Zuidwester operated by RWE with 12 Enercon turbines. Across the region, including the vicinity of the Windplanblauw and Alexia wind farms, more than 160 wind turbines are now equipped with LSS BNK technology.

A notable aspect of the Noordoostpolder implementation is the installation approach: All BNK components were installed onshore - even for turbines located in the IJsselmeer. As a result, no offshore work was required, significantly reducing effort and risk. According to Lanthan Safe Sky, this approach represents a technical milestone.

The technical integration was coordinated by the consulting firm Ventolines, which also oversees ongoing asset management for two of the wind farms. Henning von Barsewisch, Managing Director of Lanthan Safe Sky (LSS), highlights the strong collaboration within the project: “Together, we have implemented a solution that is technically convincing and at the same time strengthens the acceptance of wind energy among the general public.”

“With our experience from over 6,000 equipped wind turbines and the excellent cooperation with the operators involved and the project developer Ventolines, we were able to successfully complete this challenging project on schedule. The successful activation shows how cross-border cooperation is further advancing the energy transition in Europe,” says Julian Bialk, Business Development Manager at LSS.

Source: IWR Online, 14 Nov 2025