As an important guarantee for modern life, Jiandao.com reporters learned from China Southern Power Grid that the "China Southern Power Grid’s "14th Five-Year" Power Grid Development Plan" (hereinafter referred to as the "Plan") was announced, and the plan pointed out that in the "10th Five-Year Plan" During the Fourth Five-Year Plan period, China Southern Power Grid plans to invest about 670 billion yuan in construction. Speed up the construction of digital power grids and the modernization of power grids, and promote the construction of new power systems with new energy as the main body.

The "Plan" is centered on the construction of a new power system with new energy as the mainstay, clarifying the overall structure of China Southern Power Grid’s "14th Five-Year Plan" grid development, focusing on supporting green, low-carbon and clean power generation, building safe and efficient smart power transmission, and building a flexible and reliable Smart power distribution, build open and interactive smart power, promote multi-energy complementary smart energy, comprehensively improve the digital level of the power grid, build a safe and interconnected communication network, and complete 38 key tasks such as a unified and coordinated governance system, innovative technological guarantees and market mechanisms .

Distribution network investment accounts for half of the total investment

It is estimated that by 2025, the maximum load of the entire society in the five southern provinces will reach 295 million kilowatts, an increase of 79.6 million kilowatts over 2020.

According to the load growth of the "14th Five-Year Plan", in order to meet the needs of economic and social development, the "Planning" proposes the "14th Five-Year" plan and mid- and long-term power grid planning as follows: In the southeast of Tibet, integrating Guangdong, Hong Kong and Macao, connecting Southeast Asia, and realizing a larger platform for the optimal allocation of resources. Promote the technical route of the flexible interconnection main network. The newly-built DC receiving end will be mainly flexible DC, and the existing DC will gradually implement flexible DC transformation, and gradually build a "reasonable zoning, flexible interconnection, safe and controllable, open and mutually beneficial" main grid form.

China Southern Power Grid listed the construction of the distribution network as the focus of the "14th Five-Year Plan" and plans to invest 320 billion yuan, accounting for nearly half of the total investment.

The distribution network is a key link in energy production, conversion and consumption. It is a supporting platform for renewable energy consumption, a platform for diversified and massive information and data, and a trading platform for multi-party market entities. In the context of the energy revolution promoted by the national strategic carbon reduction goals of "carbon peak" and "carbon neutral", the distribution network is gradually becoming the core of the power system. Introduced by relevant personnel from the Planning Department of China Southern Power Grid.

In terms of distribution network construction, we will continue to strengthen the construction of urban distribution networks so that customers in high-reliability demonstration areas and high-quality power supply leading areas will have an average annual power outage of no more than 5 minutes, reaching the international leading level. The energy distribution self-healing rate reaches 100%.

Consolidate and transform rural power grids to serve the country's new urbanization strategy and rural revitalization strategy. Promote the construction of new-type urbanization distribution network demonstration areas and modernized rural power grid demonstration counties. Strengthen the intelligent construction of distribution network, and carry out large-scale transformation and upgrading with districts and counties as units.

By 2025, the average annual outage time for customers in the entire network will be reduced to less than 5 hours/household, 0.5 hours/household in the middle of urban areas, 2 hours/household in urban areas, and 7.5 hours/household in rural areas, keep The leading position is at the level of China.

Obtained the power index, Guangzhou and Shenzhen reached the international leader

During the "14th Five-Year Plan" period, China Southern Power Grid will further accelerate the digital transformation of the power grid, strengthen the construction of smart power transmission and distribution, promote the construction of multi-energy complementary smart energy, and promote services through the digital and intelligent construction of the power grid. Be smart and work hard to improve the user's sense of acquisition.

In terms of smart power transmission construction. While continuing to optimize the main power grid, promote interconnection with surrounding power grids, deepen the construction of a guaranteed underlying power grid (strong local power grid), and continuously improve the power grid’s ability to prevent security risks. Accelerate the improvement of the intelligent level of power transmission, and promote the intelligent inspection of transmission lines and the construction of smart substations. By 2025, lines of 35kv and above will achieve full coverage of UAV intelligent inspections.

In terms of smart power distribution construction. Comprehensively promote the construction of distribution automation with fault self-healing as the direction, and effectively realize the self-healing of the state monitoring of the distribution network, rapid fault location, automatic fault isolation and power grid reconstruction. Gradually expand the scope of automation, promote the construction of smart power distribution stations, smart switch stations, smart platforms, and other fields, promote the construction of microgrids, promote the application of smart gateways, and carry out flexible construction of distribution networks.

In terms of smart electricity usage. Accelerate the "new electrification" process, promote the continuous increase of the proportion of electric energy in the final energy consumption, and the continuous improvement of energy utilization efficiency. Actively promote power demand response, promote the interactive development of electric vehicle charging infrastructure and the Internet of Vehicles, and promote the construction of smart homes and smart communities. By 2025, Guangzhou and Shenzhen will achieve world-leading strength indexes, Guangdong will become world-class, and the core areas of Hainan and the western provincial capital will become domestic first-class.

At the same time, promote the development of smart energy with complementary multiple energy sources. Promote integrated energy service business, actively expand energy-saving services and distributed energy business, build an integrated energy system platform, and serve the development of new low-carbon models and new business formats. Promote the development of intelligent infrastructure integration, and promote the integrated construction of "multi-station integration" such as substations, charging stations, energy storage stations, data centers, 5G base stations, and Beidou base stations. By 2025, strive to achieve 100 multi-station integrated substations and build a number of smart energy demonstration areas such as Guangzhou Nansha, Zhuhai Hengqin, and Dongguan Songshan Lake.

Focus on improving system flexibility

It is expected that during the "14th Five-Year Plan" period, the five southern provinces will add 115 million kilowatts of wind and photovoltaic power generation, 6 million kilowatts of pumped storage, and 20 million kilowatts of new storage. By 2025, the installed power capacity of the five southern provinces will reach 610 million kilowatts, and the proportion of non-fossil energy installed capacity and power generation will increase to 60% and 57% respectively.

According to the "Plan", during the "14th Five-Year Plan" period, China Southern Power Grid will vigorously support the development of new energy in accordance with the principle of centralized development and decentralized development, and accelerate the construction of a new energy-based power supply structure and nearby consumption. Promote the deep development of hydropower in Southwest China, the safe development of coastal nuclear power, the rational development of gas-fired power, and the clean and efficient development of coal power. Establish on-demand pumped storage, promote the accelerated development of electrochemical storage, and focus on improving system flexibility.

In order to accelerate the construction of a new power system with new energy as the main body, the "Plan" proposes to comprehensively promote the construction of a new provincial power system. During the "14-Day Five-Year Plan", new power systems will be built on the basis of comprehensive advancement in different provinces and regions, 9 prefecture-level new power system demonstration areas, 9 county-level new power system demonstration areas, and 7 Parks, towns and villages will be based on local conditions. Demonstration area of new power system.

The digital grid relies on the powerful "electricity + computing capabilities" to enable the grid to have super-sensing capabilities, intelligent decision-making capabilities, and rapid execution capabilities. For the consumption and consumption of clean energy, digital empowerment also provides conditions for the efficient consumption of clean energy. Through the core algorithm, the digital grid has become the best form of carrying new power systems. The "Plan" proposes that by 2025, a digital power grid will be fully established, and the superimposed multiplication effects of the "factors of production" and "computing capabilities + algorithms" of energy and power big data will be fully utilized to facilitate the construction of new power systems.

The power outage time in the Guangdong-Hong Kong-Macao Greater Bay Area is reduced to less than 1 hour

During the "Thirteenth Five-Year Plan" period, China Southern Power Grid actively integrated and served national and regional coordinated development strategies, formulated and launched integration and services for the Guangdong-Hong Kong-Macao Greater Bay Area, Shenzhen Pilot Demonstration Zone, Hainan Free Trade Port, and promoted the development of the western region in the new era. Carry out fruitful work and give full play to the role of the "national team" and "main force" to ensure high-quality regional economic and social development.

In order to continue to integrate and serve the national and regional coordinated development strategy, the "Plan" proposes to actively integrate and serve the Guangdong-Hong Kong-Macao Greater Bay Area and the Shenzhen Socialist Pilot Demonstration Zone, building a new power system in the Guangdong-Hong Kong-Macao Greater Bay Area and a new type of power in Shenzhen's modern city. The system takes the lead in the demonstration area, speeds up the construction of the "flexible and directly interconnected outer ring bay area" target power grid, Guangdong Power Grid, and starts construction of the DC project from Southeast Tibet to the Guangdong-Hong Kong-Macao Greater Bay Area. In 2025, the power outage in the Guangdong-Hong Kong-Macao Greater Bay Area will be reduced to 1 hour Within 15 minutes, the power outage time in Shenzhen was reduced to less than 15 minutes.

In terms of serving the construction of Hainan Free Trade Port, the "Plan" proposes to inherit my country’s first provincial-level smart grid demonstration achievements, build a new power system in Hainan Free Trade Port, upgrade the construction of Hainan’s 500 kV main power grid, and create new energy vehicles to charge and replace the entire The island and the "network", Hainan will reduce the power outage time to less than 3 hours in 2025, and the power outage time in the core area of the new power system demonstration core area will be reduced to less than 30 minutes.

Incorporating and serving the western development strategy in the new era, the "plan" proposes to accelerate the construction of power grids, which is mainly suitable for large-scale new energy, Yunnan-Guizhou rapid development of new energy support, and actively plan the construction of "integrated wind, water, and fire storage". Editor/Xu Shengpeng