The power supply reliability of the Greater Bay Area is the advanced level of the World Bay Area.

Southern Finance All Media Reporter Huang Haobo Guangzhou Report

On June 24, the National Energy Administration released the power reliability data of 2021. Data show that among the nine cities in the nine cities of the Guangdong -Hong Kong -Macao Greater Bay Area, the average power outage time of the full caliber of the five cities of Zhuhai, Shenzhen, Zhongshan, Guangzhou, and Foshan is less than 1 hour.

Compared with other bay areas in the world, the annual average power outage time of the New York Bay Area, California Bay Area, and Tokyo Bay Area in 2020 are 40 minutes, 104 minutes and 7 minutes. According to comparable calibers, the average annual power outage time of the nine cities in the Greater Bay Area in the Greater Bay Area is 52.2 In minutes, with the long -term international leading Hong Kong and Macau, the reliability of the Greater Bay Area has reached the advanced level of the world's main bay areas.

From the perspective of the main cities in the Bay Area, the four key cities of Zhuhai, Shenzhen, Zhongshan, and Guangzhou have entered the top 50%, and the average power outage time of users in Guangzhou and Shenzhen in the core cities is lower than that of New York and San Francisco.

Enter the "half -hour" era in 2025

There are 31.54 million seconds throughout the year. In the center of Futian, Shenzhen, the power outage is only 14 seconds! The newly built Houhai Business Headquarters high -quality power supply leading zone has no more than 30 seconds.

"In recent years, the average power outage time of the overall users of the Guangdong -Hong Kong -Macao Greater Bay Area has steadily declined." Zhou Xia, director of the reliability management center of the China Electric Power Enterprise Federation.

It is reported that there are more than 45.68 million users in the nine cities of the Guangdong -Hong Kong -Macao Greater Bay Area in the Mainland in the Mainland of the Guangdong -Hong Kong -Macao Greater Bay Area, with an annual power consumption of more than 710 billion kWh (excluding Hong Kong and Macao), and the number of power supply lines of various voltage levels is one million kilometers.

How to divide the power of "sky volume" is not bad "courier" to millions of households? The relevant person in charge of the South China Power Grid Corporation told Southern Finance and Economics reporters that at present, the Greater Bay Area has built 18 West East Passing Channels, Kunliulong DC, Yunguang DC and other world -class transmission projects. The "Great Artery" system to transmission to ensure that the huge amount of clean energy in the west is transported to the load center of the Greater Bay Area. On the other hand, it is to build an intelligent power distribution "capillaries" network. For technical means such as automatic inspection of drones, automatic fault intelligent positioning research, and self -repair of faults to continuously eliminate faults and ensure smooth lines.

For example, in the Hengqin Guangdong -Australia In -depth Cooperation Zone, the high -reliability intelligent distribution network of "stratified partition and self -healing" is under construction. Liu Yao, manager of the production planning department of the Zhuhai Power Supply Bureau of the Guangdong Power Grid of Southern Power Grid, introduced that in 2021, the average annual power outage time of low -voltage customers in the region was only 27 seconds, the line failed, and the positioning, self -repair and recovery were located within 300 milliseconds.

Among the 12 high -power reliability demonstration areas throughout Guangzhou, Haizhu Pazhou, University Town and other areas achieved "zero power outages" in 2021. In this regard, Jia Penghui, the power distribution department of the Guangzhou Haizhu Power Supply Bureau, Guangdong, Southern Power Grid, introduced that on the one hand, through intelligent transformation, it can be perceived in advance when the failure occurs. The water pipe becomes multiple water pipe water supply. After the failure, the system can switch the "water pipe" immediately. "Through a series of measures, the Haizhu Pazhou not only has zero power outage ', but also has high power quality and low voltage fluctuations."

It is reported that the self -healing rate at the Guangzhou distribution network has reached 100%, and the self -healing effective movement last year was 443 times, reducing the loss of power outages by about 13,000.

In this regard, Zhou Xia believes that Southern Power Grid Corporation has made a multi -professional organic coordination and multiple professional organic coordination and multiple measures through planning, construction, operation and maintenance, dispatching, etc., which greatly reduces the power outage time. Management theory and practice.

"With the accelerated construction of digital grids, we plan to reduce the average power outage time of users in the Greater Bay Area to within 0.5 hours by 2025." Zhong Lianhong, general manager of the Biotechnology Department of Southern Power Grid Corporation, said that most users in the Greater Bay Area will then will be mostly users in the Greater Bay Area will Without the power outage, the energy safety of the Greater Bay Area was further guaranteed.

Reliable power supply supports the industrial upgrade of the Greater Bay Area

At present, the industrial transformation and upgrading of the Guangdong -Hong Kong -Macao Greater Bay Area has entered a new stage. The large -scale development of high -end manufacturing industries such as microelectronics, chips, and biopharmaceuticals has made the Greater Bay Area grow up to the quality of power supply.

Taking Shenzhen as an example, the power supply load per square kilometer reached 10,000 kilowatts, which is the largest in the mainland cities. Among Shenzhen's 18,000 national high -tech enterprises, sensitive equipment accounts for more than 46 %. Of the more than 800 big customers, about 300 companies cannot "endure" the voltage of more than 10 milliseconds.

Under such ultra -high load density, the Shenzhen Power Supply Bureau has built the country's largest urban power grid power quality monitoring system to help enterprises prevent early prevention and early governance. Shenzhen has also become the first city in the country to build a strong local power grid. In 2021, the city's average power outage time was only 28.8 minutes.

In response, Ling Yanhui, an associate of Foxconn Technology Group, said: "We rarely have insurance claims due to voltage decrease in the Shenzhen plant, which also guarantees the company's efficient production."

In the core area of ​​Pazhou, the artificial intelligence and digital economy pilot zone in Guangzhou, with the entry of Internet giants such as Ali and Vipshop, it has high requirements for electricity reliability.

In this regard, the Guangzhou Haizhu Power Supply Bureau launched one -to -one service to plan a capable plan for enterprise planning. "For example, when the building is turned on at 6 am, the air conditioner cools down in advance, reducing the burden on the air conditioner at 8 am. It not only uses the Fenggu electricity price difference to save electricity costs for the enterprise, but also help the power grid" peak peaks to fill the valley "to achieve the" win -win "effect." Jia Penghui Say. How to further realize the safety and reliability of power protection? Zhou Xia believes that in the context of the "double carbon", the next step of power grid companies should drive technological innovation with user needs and upgrade the service upgrade with technology upgrades to achieve high -quality and sustainable development of power reliability.

In this regard, Southern Power Grid Guangdong Power Grid Corporation stated that next, enterprises will advance from improving "power supply reliability" to overcome "power quality" and focus on solving problems such as temporary voltage reduction, exceptional harmonic, and unbalanced three -phase imbalance.

According to reports, at present, China Southern Power Grid Guangdong Power Grid Corporation has established an analysis index system for the entire business process of power supply reliability. From the aspects of grid, equipment, systems, services, etc. With coverage, the self -healing rate of the distribution network exceeds 75%, and the provincial -level smart meter -based power supply voltage continuous online monitoring system is built. It is estimated that by 2035, the full coverage of the voltage levels and important sensitive customers will be achieved, and the quality of power supply will reach the international leading level.

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