On December 20, the No. 1 reactor of the demonstration project of Huaneng Shidaowan high temperature gas cooled reactor nuclear power plant, a major national science and technology project, completed the initial load operation test evaluation of the generator, successfully connected to the grid for the first time and generated the first degree of power, marking the spherical bed modular high temperature gas cooled reactor with the characteristics of the fourth generation advanced nuclear power system, In China, Huaneng has achieved a qualitative leap from "laboratory" to "engineering application". At present, the operation indexes of the demonstration project unit are normal, the reactor, steam turbine generator and related system equipment operate stably, the No. 1 reactor is steadily moving towards single full power, and various tests are carried out orderly before the No. 2 reactor is connected to the grid for power generation. The double reactor is expected to be fully put into commercial operation in mid-2022. As a new generation nuclear power project independently designed, built, commissioned and operated in China, the demonstration project was jointly built by China Huaneng, Tsinghua University and China Nuclear Power Group, with an installed capacity of 200000 kW. It was listed as one of the 16 major national science and technology projects in 2006 and started construction in Rongcheng, Shandong Province at the end of 2012. High temperature gas cooled reactor has good inherent safety, high power generation efficiency, strong environmental adaptability and wide applications. It has broad commercial application prospects in the fields of nuclear power generation, cogeneration and high-temperature process heat. It is an important path for China to optimize energy structure, ensure energy supply security and achieve the goal of "double carbon". In the field of strategic high-tech research facing major national needs, China Huaneng has continued to promote self-reliance and self-improvement in high-level science and technology, bravely shoulder the burden of "chain owners" of the modern industrial chain, open up the innovation chain through industry university research cooperation, give play to the industrial agglomeration effect, and integrate more than 500 units upstream and downstream of the industrial chain such as design and R & D, engineering construction, equipment manufacturing and production operation, Comprehensively improved the technology application ability and independent scientific and technological innovation ability of demonstration projects, and successively conquered a number of key technologies in the field of nuclear power. Since entering the field of nuclear power in 2004, Huaneng has always taken "unswervingly promoting the development of nuclear power" as the company's established strategic choice. So far, it has been deeply engaged in the field of nuclear power for 17 years. In addition to taking the lead in the construction of Shidaowan high temperature gas cooled reactor nuclear power plant demonstration project, Huaneng also controls the construction of Hainan Changjiang nuclear power phase II project. At present, the development pattern of China Huaneng's three coastal nuclear power bases, Shidaowan in Shandong, Changjiang in Hainan and Xiapu in Fujian, has been fully formed, and Huaneng Nuclear Energy Technology Research Institute (Huaneng high temperature reactor technology research center) has entered substantive operation. (outlook new era)