The role of nuclear power in the world’s energy supply is constantly shrinking – GIGAZINE

Starting in 2021, nuclear power accounts for about 10% of the world’s energy supply, a decrease of 3% from 2010. Nuclear power, which has been used for a long time, will continue to decline due to various factors in the future.NatureHe is arguing.

The role of nuclear technology in the world’s energy supply is shrinking
https://www.nature.com/articles/d41586-021-00615-w

In the past, high expectations were placed on nuclear power generation and countries around the world have been working on the production of new nuclear reactors, but in 1979, at the Three Mile Island nuclear power plant in the United StatesaccidentThe situation changes completely when the occurrence of. Although it is reported that the accident did not affect human life, an anti-nuclear movement broke out in the United States. Furthermore, in 1986,Chernobyl nuclear power plant accidentThe radiation outbreak is said to have spread the effects of radiation not only to the Soviet Union but also to Eastern and Western Europe, and public awareness of the risks of nuclear power has increased significantly.

The cost of damage caused by the Chernobyl nuclear power plant accident is estimated to exceed $ 200 billion and occurred in 2011.Fukushima Daiichi Nuclear Power Plant AccidentThe cost of decontaminating Fukushima prefecture as a whole is estimated at between $ 470 billion (about 51 trillion yen) and $ 660 billion (about 71 trillion yen).

What this means is that “the cost of nuclear power is not just construction and maintenance costs, but the country needs to prepare a huge amount of money, regardless of whether a disaster occurs or not,” he says.

The enormous cost of nuclear power is a barrier to entry and most countries cannot establish nuclear power plants. In addition, the countries that are about to start the development of nuclear energy areInternational Atomic Energy AgencyAnd in order to prevent nuclear proliferationNuclear supplier groupYou are expected to cooperate with. These agencies have strict regulations to prevent cases like India and Pakistan that have diverted nuclear technology towards nuclear weapons.

Nature says: “Nuclear power has helped people’s lives for decades, but the energy that sustains our lives is like having to take extensive measures to maintain it.Renewable energyIt should focus on “.