Electricity supply and demand that the power plant suddenly stopped ahead of the

Electricity supply and demand that the power plant suddenly stopped ahead of the completion ceremony of Shin Hanul Unit 1 and 2 yesterday (8/1)

At 7:07 a.m., the 1,400MW Shin Hanul Unit 1 suddenly stopped operating. The media reported that the completion ceremony of Shin Hanul Units 1 and 2, which was scheduled to be held on the same day, was canceled to commemorate the selection of the preferred bidder for the Czech nuclear power plant. (It seems that the government even called in foreign embassy officials and canceled it on the same day.)

However, in terms of power supply and demand, the situation at 7 a.m. was very sudden. In the morning, electricity consumption is gradually increasing. When a power plant with a large capacity of 1,400MW suddenly gets tripped in the power system, it has to be quickly heated, but the only power plant that can be filled is a gas power plant.

It's a relief that only one nuclear power plant suddenly broke down, but it's almost impossible to back it up if several nuclear power plants in a specific area stop due to earthquakes. (There are still 12 nuclear power plants in the southeast region, and Shingo-ri Units 5 and 6 are being built separately.)

It is often said that the variability of solar and wind power generation is high, but this is predictable and continuous. The discontinuous cross section of the renewable energy output reduction that occurs on a daily basis does not 'tuk' out like that. (The sun goes down slowly, and the wind also goes down slowly.)

The nucleic acid industry often talks about who pays for gas generation with renewable energy 'backup' power sources, but if that's the case, the nucleic acid industry will have to pay for the gas cost caused by the sudden stop of a nuclear power plant. Since the gas power plant is turned on in a very short period of time, including the express fee (!)..

Such problems make it difficult to put large-capacity nuclear power plants in a country with a weak electricity grid and low total power consumption. This technological factor also contributes to the fact that the proportion of nuclear power generation in Korea once exceeded 50%, but it has now decreased to around 30%. Continuing to attach large and rigid power sources to the electrical grid, such as a single power source, like a nuclear power plant, only increases the risk.