China invests about 5.2 billion yuan! Southern Power Grid to build 500 kV provincial digital grid in Hainan

A few days ago, the Southern Power Grid Hainan 500 kV main grid project to start construction, the project will use a new generation of technology in the planning, design, construction and other aspects of the project to create China’s first 500 kV provincial digital power grid.

With the in-depth promotion of the construction of Hainan Free Trade Port, Hainan electric power load scale grows significantly, the load characteristics and distribution will produce large changes in the reliability of the power system, adaptability put forward higher requirements. To this end, the South China Power Grid Company invested about 5.2 billion yuan, the construction of Hainan 500 kV main grid project, completed in early 2023 for the record. The project into the national “14th Five-Year Plan” power development planning and major projects in Hainan Free Trade Port, is expected to be completed and put into operation in 2025.

Hainan 500 kV main grid project, including Coconut City Transmission Project, Changhua Transmission Project, Sanya Transmission Project and Changjiang Nuclear Power Phase II Access System Project 4 projects, plans to build 500 kV substation 3, the new 500 kV main transformer 5 sets, the total transformer capacity of 3.75 million kVA. Newly built 838 kilometers of 500 kV transmission lines, lines through Haikou, Sanya, Danzhou, Qionghai, Wanning, Dongfang and other 14 cities and counties, “one into a ring” covering the whole island, forming a complete “mouth” ring network architecture.

Hainan 500kV main grid project will be “cloud, big things, move wisdom chain” and a new generation of digital technology through the planning, design, construction, commissioning, operation and maintenance of the whole life cycle, the construction of digital grid panoramic “one map” control platform, and strive to create China’s first provincial area. 500kV backbone digital grid benchmark.

It is reported that in 2025, after the completion of the “mouth” ring network architecture, Hainan will also be built in 2030 before the cumulative completion of the 500 kV substation 7, forming the island 500 kV “day” ring network.

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