In December 2018, the world's first nuclear power project for VVER nuclear islands matching domestic conventional islands, Tianwan Nuclear Power Units 12 and 3, was officially put into operation. In 1952, at the age of 23, Ren Gao responded to the call of the state and went from Shanghai to Changchun to work and become a power engineer.

In 1954, the first 220 kV line designed and constructed by Chinese, the Songdong Li Line was officially completed. In the early days of the founding of New China, China's power industry was almost poor, not only the power generation and power grid lines.