In recent years, Lidar has become an indispensable tool in wind energy. Currently, 10 to 20% of onshore wind energy projects worldwide use Lidar measurements instead of met masts. In addition, they are needed for vertical and horizontal extrapolation of the met mast data. The complex terrain and cold climate in Switzerland place special demands on Lidar measurements. Already in Task 32, working groups dealt with these problems. The working groups 'Lidar in complex terrain' and 'Lidar in cold climate' have now been transferred from Task 32 to Task 52 and will be continued. Meteotest would like to continue representing Switzerland in the Task. As a representative, it coordi-nates Swiss research activities and integrates them into the work of the Task. Conversely, it provides information about the results of the Task's working groups at conferences, such as the Swiss Wind Energy R&D Forum or the Firmenbeirat of Suisse Eole. Meteotest is involved in the working group Lidar in complex terrain and leads the working group Lidar in cold climate. In an annual report to the SFOE, it reports on the work and results of the current year and provides a detailed outlook on the work for the following year.