China Southern Power Grid, one of the country's two major power grids, vowed to invest 670 billion yuan ($105 billion) recently in grid network construction during the 14th Five-Year Plan period (2021-25) to ensure power supply stability and boost green power consumption.

The investment will be used on clean energy power transmission, intelligent power distribution systems and smart power consumption, so as to push forward construction of a digital and modern network with new energy as the mainstay, the company said.

The operator's business covers five areas in the country: Guangdong, Yunnan, Guizhou and Hainan provinces and the Guangxi Zhuang autonomous region.

The planned investment in the grid network during the 14th Five-Year Plan period, which is 33 percent higher compared with the level of the last plan, accounts for 48 percent of the company's total investment. It also plans to increase its percentage of non-fossil energy power generation to 60 percent by 2025 to around 100 million kilowatts.

State Grid Corp of China, the largest power provider in the country, also pledged to invest 2.23 trillion yuan in the power grid, which means the country's total grid network investment will soar to 3 trillion yuan during the 2021-25 period.

Both companies vowed to increase power supplies while implementing power price reforms.