With the Competence Centre for Wind Energy (CCW), the Physikalisch-Technische Bundesanstalt (PTB) has created an infrastructure for the high-precision measurement of large three-dimensional components with dimensions of up to 5 m × 4 m × 2 m as well as large torques of up to 5 MN⋅m. The torque standard measuring device is already designed for the generation and measurement of torques of up to 20 MN⋅m. In addition, the CCW is equipped with a facility for the quantitative measurement of wind LIDAR systems. These measuring devices with their associated measuring methods are unmatched anywhere in the world in terms of their measuring accuracy. As can be seen today, it pays off that PTB started with these developments even before the energy turnaround in order to provide answers to the existing metrological challenges and to the economic, political and social questions. All three measurement methods are addressed in brief in this article. Detailed explanations can be found in other articles in this issue.