North China's Inner Mongolia autonomous region plans to launch 12 ultra-high-voltage (UHV) power transmission projects during the 15th Five-Year Plan period (2026-30), as demand for cross-regional power transmission continues to surge.

The plan covers six UHV alternating current (AC) transmission lines linking key energy hubs in Dalad Banner, Ulaanqab, Bayannuur, and Baotou cities with major load centers, as well as six UHV direct current (DC) lines that deliver electricity from Inner Mongolia's western and desert energy bases to the Beijing-Tianjin-Hebei region, Shanghai, Jiangsu, Jiangxi, and other parts of China.

With a combined transmission capacity of 48 million kilowatts, the new projects will raise Inner Mongolia's total UHV power delivery capacity to 96.7 million kW once completed, together with the eight existing UHV lines already in operation. With all 12 new projects in place, the region's outbound electricity transmission during the five-year period is expected to surpass 1 trillion kilowatt-hours.

During 2026–30, Inner Mongolia is also set to build 1,525 kilometers of ±800 kV DC transmission lines and 2,904 km of 1,000 kV AC lines, alongside six ±800 kV converter stations and four 1,000 kV substations.

Since its first UHV transmission corridor became operational in 2016, Inner Mongolia's outbound power transmission has recorded steady growth for eight consecutive years.

In 2025 alone, UHV power exports reached 188.55 billion kWh, while cumulative outbound transmission totaled 836.30 billion kWh by the end of last year — both ranking first nationwide. Electricity from Inner Mongolia now supplies 11 provinces, autonomous regions, and municipalities.