It is part of the supporting facilities for the Huaneng Weijiamao Coal-fired Power Plant, has been officially connected to the grid and started a 168-hour trial operation. The operation of this project marks that the 1,000-kilovolt ultra-high voltage AC project from Inner Mongolia West to Tianjin South has officially started to generate benefits, realizing the strategy of large-scale transmission of clean energy from the autonomous region. This will strongly drive the development of the upstream and downstream energy industries in the autonomous region and further transform the energy advantage into an economic and social development advantage.