The X-Energy subproject X-Radar is investigating the effect of aircraft detection lighting systems (ADLS) from wind turbines on the acceptance of wind energy within the population. ADLS reduce the obstruction lighting on wind turbines, which consists of red flashing lights necessary for air-traffic safety, by over 90 per cent at night, simply by switching the light on only when aircraft are actually in the vicinity. As part of the project, an ADLS (using transponder technology) was installed in Hamburg Bergedorf. In order to analyse the effects of ADLS on residents' acceptance, representative, quantitative surveys were conducted on site before and after the installation and commissioning of the system. In addition, qualitative interviews with experts on the subject of ADLS were conducted with regard to the development and introduction process.

The results of the surveys primarily indicate a generally high acceptance of wind energy, comparatively low disturbance from the lighting, and limited knowledge about ADLS technology. Residents' perception of the lighting differs significantly depending on the context and requires further analysis in some areas. The legal situation and the regulatory framework changed several times during the introduction process and, according to experts in the field, often had a negative effect on implementation for several stakeholders.

Project Leader
Prof. Peter Dalhoff
CC4E - Competence Center for Renewable Energies and Energy Efficiency