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Wen丨Xiaofei is a little annoyed
Editor丨Xiaofei is a little annoyed
Preface
The mainland is located in the eastern region of Asia, and our neighbor Japan is also located in the eastern region, and Japan has developed rapidly in both economy and science and technology in a few decades with the rapid reconstruction of the United States with the help of the United States after the end of World War II, while the mainland can only concentrate on its own development and breakthrough, and in this case, it only took more than 30 years to achieve the current achievements.
In contrast, Japan's development is somewhat insufficient, and now the industrial power in East Asia has China in addition to Japan, and Japan's power generation has been floating around one trillion in these years, and sometimes it is still in a state of negative growth, and our country China has opened a large gap from catching up with Japan in these years, what kind of breakthrough is this?
How much electricity is generated in Japan, and what is their overall power generation composition?
Speaking of Japan's research and development in power generation, we have to mention that at the end of World War II, Japan mainly relied on coal to generate electricity, but with the development of the world, oil resources are particularly important in many aspects, and Japan also regards oil as an important resource.
Under such circumstances, Japan has gradually replaced coal resources with petroleum power generation as the main power generation component, and the proportion of coal power generation has been declining year by year, but even if the proportion of coal used for power generation has decreased, the amount of coal that can be used has not decreased at all.
According to the relevant data, Japan is the third largest country in the world to import coal, and in 2022 it will reach an astonishing 121.895 million tons a year, just looking at this data, it is not difficult to imagine how much coal resources Japan needs to burn in a year, and more than 40% of these imported coal are used for power generation.
There are several important reasons for this, first of all, Japan's land area is too small, which leads to the fact that there are basically no big rivers in their country, and hydropower has become a major scientific and technological focus in the world, but even if Japan has the technology, they do not have "power generation water", so they can only use other ways to make up for it.
There are many hydropower plants in Japan today, but most of them are pumped storage power plants, and the power supply of such power plants is relatively small, and they can generate about 10 to 200 MW of electricity, that is, simple medium-sized hydropower plants, and many other small hydropower plants of 10 MW.
However, Japan has been using nuclear power plant power generation technology until now, and in 1955, the international policy for the use of nuclear energy was determined, and Japan also found a suitable opportunity for it, so with the support of the Japanese government, Japan also launched a major research project on atomic energy.
After nearly a decade of research, Japan started the operation experiment of their first nuclear power unit on October 26, 1963, after which Japan also developed a nuclear reactor suitable for nuclear power generation, which is also a light water reactor, and the time lasted until October 2022, when Japan stopped the operation of nuclear power plants.
During this period, there was a major earthquake in Japan, and the most affected by the earthquake was the Fukushima nuclear power plant, also known as the Fukushima nuclear accident, which caused a very serious impact and caused countless nuclear wastewater, but Japan did not care about the Fukushima nuclear power plant in the second year after the earthquake.
There is a news that has to be mentioned here, that is, Japan has been one of the largest power stations in Japan before the accident at the Fukushima nuclear power plant, not only the scale is very large, but also the power generation is very objective, can provide about 25% of the total power generation to Japan every year, which can be regarded as a very important power station in Japan.
But this nuclear power plant was destroyed with the earthquake in Japan, and now only 15 nuclear reactors are still in operation in Japan, you must know that before the accident, there were more than 50 nuclear reactors in operation in Japan, and until now, Japan's nuclear power plants can only provide them with one-twentieth of the electricity of the whole country every year.
Under the influence of these circumstances, Japan's current power generation method is still relatively primitive power generation, that is, relying on oil, gas and coal to generate electricity (also fossil energy), according to relevant data, in 2020, Japan used oil to generate electricity accounted for 6.3%, coal power generation accounted for 31%, and natural gas power generation accounted for 39%.
This data has not changed much in recent years, which means that Japan needs a lot of fossil energy to maintain domestic power generation, and Japan does not have many reserves of this energy, and only a large number of imports can make up for this shortcoming, and slowly Japan has become one of the countries with the largest fossil energy imports in the world.
China's development in terms of electricity
In the decades of the 21st century, Japan's power generation capacity was relatively stable, reaching 912 billion kWh in 1992, compared to 693 billion kWh in the mainland, which is 219 billion kWh less than Japan's.
But with the development of time, Japan broke through the trillion kWh data for the first time in 1996, reaching 1014 trillion kWh per year, but the mainland also successfully caught up with Japan at that time, reaching 1021 trillion kWh, becoming the second largest country in the world in terms of power generation, and it was also after this year that China has been rising in terms of power generation.
In 2012, China made a breakthrough in power generation, surpassing the United States to become the world's largest power producer, and this data also shows that China is the largest contributor to this data in the world (after the 21st century).
As long as there is new power generation in the world, 50% of it will be contributed by China, but all this is not empty talk, but China has practical actions to pay in it, and here we have to talk about China's infrastructure development around the world.
Now the whole world knows that China is a "infrastructure madness" country, and in recent years, China's infrastructure technology can be said to be sitting on a "rocket" to go up, in this case, the mainland has the world's largest hydropower station, and the world's top ten hydropower stations (in order of power generation), more than half of them are China's hydropower stations.
China's hydropower generation technology is the best in the world, including the well-known Three Gorges Hydropower Station, which has provided a lot of electricity to the Chinese people since it was just completed, and in addition to the Three Gorges Power Station, the Baihetan Hydropower Station on the mainland is no worse.
The Baihetan Hydropower Station, which was fully operational last year, is the largest in the world in terms of both the area in which it was built and the comprehensive technology that many foreign infrastructure designers have been shocked by the fact that China has created a million kilowatt hydro-generator units after overcoming these difficult technologies.
In addition, China has also developed a 300-meter-level high arch dam seismic fortification index and underground cavern group scale experiments and other 6 very difficult and difficult research, and are the first in the world, all of which are promoting the development of the mainland's hydropower industry.
The current Baihetan Hydropower Station can basically generate an astonishing 62.4 billion kWh of electricity every year, which can provide 75 million people with all the electricity they need for a year, and the Baihetan Hydropower Station can generate so much electricity because it has 16 units in operation.
In contrast, China's current power generation is basically 10 times more than that of China 30 years ago, because according to relevant data, China's annual power generation capacity in 2022 can reach 8.7 trillion kWh, which is much more than the four countries of the United States, Japan, Russia and India combined.
epilogue
Now China's electricity generation has surpassed that of Japan, and it is several times higher, which also shows that electricity in China is much cheaper than electricity in Japan.
With the development of China's economy and science and technology, people's demand for electricity will become higher and higher, and the gap between China and Japan will also widen!