The Qingyu DC project in Qinghai section will be completed for the 2025 annual maintenance.

According to State Grid Qinghai Provincial Power Company, the Qinghai-Henan 800 kV Ultra-High Voltage Direct Current Transmission Project Qinghai Section's 2025 annual centralized maintenance work was successfully completed on September 22. This is the fifth annual inspection since the project was put into operation, providing reliable guarantees for the upcoming winter peak electricity demand and further promoting the efficient development and utilization of new energy in Qinghai.