XINING — Construction of an ultra-high voltage power transmission line to deliver clean energy began on Nov 7.

The 1,587-km-long transmission line starts in Hainan Tibetan autonomous prefecture in Northwest China’s Qinghai province and ends in Zhumadian city in Central China’s Henan province, connecting Qinghai, Gansu, Shaanxi and Henan provinces.

According to the plan, the transmission line, with a capacity of eight million kilowatts, will be put into operation in 2020 and deliver electricity generated from solar power, wind and water from Qinghai to Central China.

With an investment of 22.6 billion yuan ($3.26 billion), the transmission line is estimated to deliver electricity of 40 billion kilowatt-hours each year, which will help replace 18 million tons of raw coal, reduce 14,000 tons of dust emission, 90,000 tons of sulfur dioxide emission and 29.6 million tons of carbon dioxide emission.