(ECNS) -- An ultra-high voltage direct current transmission line connecting northwest China's Ningxia Hui Autonomous Region with central China's Hunan Province began construction on Sunday.
It is the country's first UHV transmission channel focusing on developing desert photovoltaic bases and delivering new energy.
Stretching 1,634 km, the transmission line passes through Gansu, Shaanxi, Chongqing and Hubei, with over 50 percent of the power generated as new energy.
The project has a rated voltage of ±800 kV and a rated transmission capacity of 8 million kilowatts.
This transmission line is estimated to supply electricity of over 36 billion kWh per year to Hunan after its operation which is scheduled in 2025.
By then, the transmission capacity of Ningxia power grid will increase from 14 million to 22 million kilowatts, and the installed capacity of new energy will exceed 50 million kilowatts, which will solve the problem of the grid connection and consumption of new energy in central and southern Ningxia.
The project is part of a national plan unveiled last year to develop clean energy, including wind and photovoltaic power, in China's deserts and barren lands, which are mostly located in the northwest parts of the country.