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The 1million volt switching ultra-low voltage experimental demonstration project being promoted by the State Grid Corporation of China. This demonstration project, which claims that the power transmission can reach 5million kilowatts, only 2.83 million kilowatts of Z terminal Z large power transmission. Even in the design transmission power of 2.8 million kilowatts, the practice can only maintain power transmission for 1 to 2 seconds. At present, the controversial experimental demonstration project is still being expanded.

The report shows that after the new dam is completed and put into operation, from January to March every year, the water temperature at the end of rime Island drops to about zero degrees Celsius, and there can be drift ice or freezing, which makes it difficult to reproduce the rime landscape. In low water level years, freezing can occur 17 kilometers away from the upstream of the dam. Now, 70 kilometers upstream of the reservoir is not frozen in summer. The difficult choice of the new dam site is revealed by insiders. At present, the reconstruction project has begun to adjust the removal planning of the old dam, and deepen the removal height to improve the water intake temperature. This plan involves underwater construction, which is more difficult. The construction period will also have a great impact on the upstream water quality. The reason for the emergence of the above problems is closely related to the decision of Xinba dam site. The difference between the dam axis of the new dam and that of the old dam is only 120 meters, and the distance from the dam toe line of the old dam is only 40 meters. If the reconstruction plan is implemented, the miracle of "one site and two dams" will emerge at the mouth of the full gorge.

If the full dam is rebuilt, although the cost is as high as nearly 10 billion yuan, its construction funds can be made up through the electricity price during the operation period according to the rules because it is a new project. The huge investment Z can eventually be shared by consumers through the improvement of electricity prices, and a new dam can be obtained at the same time. Under such circumstances, rebuilding a full dam becomes a realistic choice. The effect of this choice is also self-evident: dams that can continue to operate are abolished; Nearly 10 billion yuan of state-owned assets; The public take the initiative to bear the high electricity price.

Wu Jiang, deputy director of the Research Office of the Electricity Regulatory Commission, believes that the weakness of the government's supervision over the power industry is caused by the industrial policy of favoring power enterprises on the one hand, and the lack of professionalism of the regulatory authorities themselves, which makes it impossible to complete effective supervision. The final effect of Z is that the Electricity Regulatory Commission is faced with many difficulties in the game of electricity regulation and is "overhead" in practice.

At present, China owns more than 80000 dams. Although most of them were built after the founding of the people's Republic of China, with the passage of time, it is an inescapable reality to reach full age. As the first large dam in China that is about to reach its safe operation life, the final treatment method of plump dam, as for the more than 80000 dams currently owned by China, may provide the experience and calm under the surface of Songhua Lake, The controversy surrounding the dam's safety level assessment and reconstruction is still alive. State Grid Corporation of China is vigorously promoting the removal and reconstruction plan with a cost of nearly 10 billion yuan to "thoroughly deal with the problem"; Supporters believe that the dam can be repaired and reinforced, and the removal and reconstruction is not only a great waste, but also can lead to a series of problems such as the threat of the upstream rime landscape. Removal of full dam rime landscape threatened