The Yanwei (烟威) 1,000-kV alternating-current transmission project entered operation on October 10, enabling clean-energy exports across Shandong (山东).

The Yanwei (烟威) 1,000-kilovolt ultra-high-voltage alternating-current transmission and transformation project entered operation on October 10, according to reports citing State Grid (国家电网). It is described as the first newly built project of this type commissioned during China’s 15th Five-Year Plan period (十五五) and the country’s first ultra-high-voltage project serving nuclear-power exports.

Construction began in June 2025. The project comprises 1,197 kilometers on a single-circuit-equivalent basis (折单), one new 1,000-kV switching station, expansions of two 1,000-kV substations, and 2,124 transmission towers, including 822 in hilly or mountainous terrain and 17 in marine areas.

The line passes through Yantai (烟台), Qingdao (青岛), Rizhao (日照), Weifang (潍坊), and Linyi (临沂). The reporting identifies nuclear generation in Haiyang (海阳) and Laiyang (莱阳), alongside regional wind and solar generation, as electricity sources to be distributed across Shandong (山东).

The source says the Yanwei region contains most of Shandong’s nuclear power and half its offshore wind and solar generation. It projects surplus regional electricity requiring export of more than 30 million kilowatts by the end of the plan period; that is a regional forecast, not the transmission project’s stated transfer rating or current delivered power.