State Grid Corporation of China (SGCC), China’s largest state-owned transmission company, has commissioned the third 750 kV Baiyin–Tiandushan transmission line, a key inter-provincial interconnection project under the Ningxia power grid’s 14th Five-Year Plan, with the line entering a 24-hour trial operation phase on December 14, 2025, marking the completion of all construction works and the […]

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