Recently, the expert group for the International Electrotechnical Commission (IEC) standard PT 61400-50-5, "Scanning Wind LiDAR," convened an online meeting. Seven experts from China, Japan, the United Kingdom, Germany, and France engaged in in-depth discussions on the draft standard.

The meeting focused on revising the descriptions of the primary measurement methods covered by the standard. It also involved systematic discussions on the uncertainty assessment methods and the overall technical framework for 3D scanning wind LiDAR, laying a crucial foundation for enhancing the standard's scientific rigor and applicability. It is noteworthy that Liu Zhixin, a technical expert from Nanjing Movelaser Co., Ltd., actively participated in this round of standard development and took the lead in drafting Chapter 6, "Lidar Requirements." As a core component of the standard system, this chapter will define the key technical specifications for scanning wind LiDAR.

To advance the standard development process, the meeting tentatively agreed to hold a new face-to-face meeting in the UK in late January 2026, aiming to accelerate the high-quality finalization of the standard through direct discussions. Furthermore, considering the complexity and meticulousness of the technical topics, the expert group updated the standard development roadmap. The completion and submission of the PT 61400-50-5 draft is now planned for mid-2026, with an expected official release in 2027.

The successful conclusion of this meeting marks a key milestone in the development of the PT 61400-50-5 international standard. It not only solidifies the foundation for ongoing standardization efforts in the wind energy sector for 2025 but is also set to inject new momentum into driving the entire industry towards greater precision and efficiency.