Hainan free trade port 500 kV main grid project put into operation.

From Hainan Power Grid Company, it was learned that on December 15, the key project of the National "14th Five-Year Plan" for power development, and a major project of the Hainan Free Trade Port - the Hainan 500 kV main grid project, was fully put into operation. This is the first power grid project in China to achieve the integrated application of digital technology in the main grid throughout the province.