Inner Mongolia Signs First Transmission Agreement for Major Renewable Energy Base in Desert Regions

The governments of Inner Mongolia Autonomous Region and Hebei Province, together with State Grid Corporation of China, signed a long-term cooperation agreement for the Mengxi–Beijing-Tianjin-Hebei Direct Current (DC) Transmission Project

Source: Inner Mongolia Satellite TV

On June 4, under the guidance of the National Development and Reform Commission and the National Energy Administration, the governments of Inner Mongolia Autonomous Region and Hebei Province, together with State Grid Corporation of China, signed a long-term cooperation agreement for the Mengxi–Beijing-Tianjin-Hebei Direct Current (DC) Transmission Project. The agreement marks a significant step forward in advancing project approval and implementation.

The Mengxi–Beijing-Tianjin-Hebei DC project is the first outbound transmission line supporting Inner Mongolia’s large-scale renewable energy base in desert, Gobi, and wasteland areas. The line is designed with a rated voltage of ±800 kilovolts and a transmission capacity of 8 gigawatts. Spanning approximately 700 kilometers, it will connect the new energy base in the Kubuqi Desert in Dalad Banner, Ordos, to Cangzhou City in Hebei Province.

As one of China's first large-scale renewable energy projects in desert regions, the base is jointly developed by China Three Gorges Corporation and Inner Mongolia Energy Group. It is planned to include 8 GW of solar PV, 4 GW of wind power, 200 MW of solar thermal power, and 4 GW of flexible coal-fired capacity to ensure system stability. This transmission project is a key component of China’s “Three AC and Nine DC” power grid development initiative under the 14th Five-Year Plan. It is also the first cross-provincial, cross-regional power corridor dedicated to delivering renewable electricity from desert-based mega projects.

According to Wang Min, Director of the New Energy and Renewable Energy Division at the Inner Mongolia Energy Administration, once operational, the line will transmit approximately 36 billion kilowatt-hours of clean electricity annually—equivalent to 7% of Hebei’s total electricity consumption in 2024. The project is expected to significantly enhance Hebei’s power supply security, support the energy needs of the Beijing-Tianjin-Hebei region, and increase the share of green electricity in end-user consumption.

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