State Grid Co., Ltd. resolutely implements the "Four Revolutions, One Cooperation" new energy security strategy, fully supports the economic and social development of Shaanxi and Hubei provinces, and invests in the construction of the northern Shaanxi-Hubei UHV DC project.

The project starts at the North Shaanxi Converter Station in Yulin City, Shaanxi Province, and ends at the Wuhan Converter Station in Wuhan City, Hubei Province, passing through Shaanxi, Shanxi, Henan, and Hubei, with a total length of 1127 kilometers. The sending end is connected to the Northern Shaanxi Energy Base and the Northwest Power Grid, and the receiving end is connected to the Hubei Power Grid Load Center and the Central China Power Grid. The project adopts my country's self-developed and world-leading UHV technology, with a rated voltage of ±800 kV, a rated capacity of 8 million kilowatts, and a total investment of 18.5 billion yuan.

Northern Shaanxi is the "cornucopia" of China's energy resources, with coal reserves of 270 billion tons, accounting for 12% of China. It has abundant wind and light resources and superior development conditions. It is estimated that the installed capacity of new energy will reach more than 40 million kilowatts by the end of the "14th Five-Year Plan" period. , And is closely interconnected with the Northwest Power Grid, which is dominated by clean energy, and has obvious advantages in multi-energy complementary. The construction of the northern Shaanxi-Hubei DC project makes it possible to develop and utilize the energy resources of northern Shaanxi, especially new energy on a large scale. After the project is put into operation, the annual power transmission can reach 40 billion kWh, which can boost the GDP growth of Shaanxi province by 0.5%. .

Hubei is the “vanguard” of the strategy for the rise of central China. The demand for energy and electricity is huge, but the primary energy resources are relatively scarce, and the seasonal characteristics of hydropower are obvious. The maximum power shortage during the "14th Five-Year Plan" period is expected to exceed 15 million kilowatts.

The transmission power of the northern Shaanxi-Hubei DC project accounts for about 70% of the highest load in Wuhan, which can effectively alleviate the contradiction between power supply and demand. It can replace 18 million tons of coal every year, reduce 29.6 million tons of carbon dioxide, promote the transformation and upgrading of energy structure, and help fight Win the battle to defend the blue sky.

Create a model project for UHV upgrades

The northern Shaanxi-Hubei project is an upgraded version of the UHV project built by the State Grid to implement the concept of "safe development, green development, and high-quality development". Based on 15 years of UHV construction and operation experience, compared with the first batch of UHV projects in my country, the system safety, equipment reliability and operational flexibility have been further improved. It is breaking through the shortcomings of technology, improving safety and quality, creating a green ecology, and supporting energy. Significant breakthroughs have been made in reforms and other aspects.

More than 20 domestic scientific research institutions, manufacturing companies, and colleges and universities, relying on engineering and promoting research based on use, have solved the problem of long-term constraints on the development of the power transmission and transformation industry. The development of the supply chain broke the foreign monopoly.

A model project that promotes the resumption of work and production

The North Shaanxi-Hubei DC project is the first major power grid project that State Grid started construction after the outbreak of the new crown pneumonia epidemic. Facing the unfavorable situation that the new crown pneumonia epidemic has caused a serious impact on economic and social development, State Grid Corporation of China has issued 12 measures to deal with the impact of the epidemic, fully resume construction, and promote the resumption of work and production of enterprises. Promote the start of construction of major engineering projects.

On February 28, 2021, the northern Shaanxi converter station, Shaanxi, Shanxi, and Henan sections started construction. On March 30, the Wuhan converter station and Hubei section started construction, driving upstream and downstream enterprises to resume work and production, demonstrating the importance of a great power. The role of "device" and "pillar" fully reflects the responsibilities and responsibilities of central enterprises.

Red project to support the development of old revolutionary areas

The North Shaanxi-Hubei DC project is an important battlefield for the State Grid to help the old revolutionary base areas to help the poor. One end of the project connects to the old revolutionary area of Huanggang, Hubei, where the Fourth Red Army and the 25th Red Army were born, and the other end connects to the old revolutionary area of northern Shaanxi, where the Red Army’s Long March arrived, just like a red ribbon.

The majority of builders deeply understand the great "Long March spirit" contained in the "red ribbon", inherit the red gene, absorb the strength of struggle, vigorously promote the spirit of the "grid iron army", and use the construction of a world-class large-capacity, long-distance UHV transmission channel to help In the old revolutionary base areas for poverty alleviation and high-quality development, the bright red party flag has always been flying on the front line of scientific and technological research and engineering construction!

Since the beginning of summer, the maximum load of Hubei power grid has hit a record high, reaching 43.43 million kilowatts. It is estimated that the power shortage in August will exceed one million kilowatts. The northern Shaanxi-Hubei DC project is now ready to start power transmission, and it will soon open a channel for the transmission of abundant electric energy resources in northern Shaanxi, which will become an important guarantee for the reliable supply of power in Hubei.

Based on the new development stage, State Grid Co., Ltd. builds a new development pattern, completes and puts into production the North Shaanxi-Hubei DC project with high quality, accelerates the construction of a new power system with new energy as the main body, and helps to ensure reliable power supply and national energy security. Make greater contributions to the carbon peak and carbon neutral goals! Editor/Tian Zengpeng