CSG Supplies Over 60 Billion KWh of Power to Macao

As of Dec 2, 2021, China Southern Power Grid (CSG) had supplied more than 60 billion kilowatt-hours of power to Macao Special Administrative Region.

CSG has supplied power to the region for 37 years since 1984. It is predicted that the power transmission volume to the region this year will reach 5.15 billion kWh, 26 times of that of 1999.

In order to support an appropriate diversified development of Macao's economy, CSG built a system to guarantee power and energy supply to Macao and the Guangdong-Hong Kong-Macao Greater Bay Area and constructed a backbone power supply network in Zhuhai, South China's Guangdong Province.

At present, power supply to Macao is realized through six 220-kilovolt lines and four 110-kV lines. A third power supply channel to Macao completed in June 2019 has been renovated and will be able to resist extreme weather events like typhoons.

In recent years, construction of a digital power grid for supplying power to Macao has also made progress.

For example, core transmission operations such as full automation and smart security control of the entire process of transmission equipment inspection, and a smart emergency auxiliary decision-making system, have been realized based on an online system monitoring power supply lines.

In terms of substation maintenance, CSG has completed smart transformation of several 220-kV substations, realizing smart and unmanned inspection and one-stop programmed operation of their primary and secondary equipment and auxiliary facilities.

During China's 14th Five-Year Plan (2021-25) period, CSG plans to establish a defense system against wind and disaster, and construct new sections of the third power supply channel to Macao to form new 220-kV power supply lines.

Meanwhile, the company will optimize power grid network structure and plans to build a 500-kV substation as the core of the "full cable plus full indoor station" power supply channel to Macao.

(Executive editor: Niu Yilin)