Mengdong – Lanqi Line is a 500kV overhead line with a length of 121.48km from Mengdong, Yunnan, China, to Lanqi, Inner Mongolia Autonomous Region, China.

Construction works on the Mengdong – Lanqi Line started in 2019 and the project was commissioned in 2020.


The Mengdong – Lanqi Line, which is an overhead line, is being operated by State Grid Corporation of China. The Mengdong – Lanqi Line is a new line. The line carries alternating current (AC).

Mengdong – Lanqi Line project development status

The development of the Mengdong – Lanqi Line project was approved by State Electricity Regulatory Commission in 2019 and the project works were completed in 2020.

About State Grid Corporation of China

State Grid Corporation of China (SGCC) is a state-owned electric utility. The utility builds and operates power grids, and distributes and transmits electricity. The utility offers energy efficient home appliances air conditioner, fan, TV set, washing machine, microwave oven, refrigerator, electric water heater and computer to save energy. It provides energy conservation, energy audits, energy management, energy saving tips and energy consultation services. SGCC’s projects include Jindongnan Nanyang-Jingmen UHV AC Pilot Project, Xiangjiaba-Shanghai UHV DC Transmission Pilot Project, Qinghai-Tibet Grid Interconnection Project, and others.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.