Japan’s largest nuclear plant to continue on path to restart

Japan’s largest nuclear plant to continue on path to restart

The Kashiwazaki-Kariwa nuclear power plant, the world’s largest by installed capacity, is set to resume its path towards restarting operations after a two-year ban imposed by Japan’s nuclear regulator was lifted. This decision has sparked controversy, with proponents citing the need for stable energy supplies and economic benefits, while opponents raise concerns about safety and the long-term impact of nuclear power.


The Kashiwazaki-Kariwa plant, located in Niigata Prefecture on the northwestern coast of Japan, was shut down in 2011 following the Fukushima Daiichi nuclear disaster. The plant’s seven reactors have a combined capacity of 8,212 megawatts, enough to power millions of homes. However, the 2011 earthquake and tsunami triggered meltdowns at three reactors at the Fukushima plant, leading to widespread radioactive contamination and raising serious concerns about the safety of Japan’s nuclear industry.

Following the Fukushima disaster, the Japanese government implemented stricter safety regulations for nuclear power plants. The Kashiwazaki-Kariwa plant was deemed to be at particular risk due to its location near a major fault line and its proximity to the sea. In 2016, the Nuclear Regulation Authority (NRA) issued an operational ban on the plant, citing concerns about its ability to withstand a powerful earthquake or tsunami.

Lifting of the Ban

In July 2023, the NRA voted to lift the operational ban on the Kashiwazaki-Kariwa plant, paving the way for Tokyo Electric Power Company (TEPCO), the plant’s operator, to apply for permission to restart its reactors. The NRA’s decision was based on TEPCO’s implementation of various safety upgrades at the plant, including the construction of seawalls and enhanced earthquake-resistant features.

Controversy and Concerns

The decision to lift the ban on the Kashiwazaki-Kariwa plant has been met with mixed reactions. Proponents of restarting the plant argue that it is essential for ensuring a stable energy supply for Japan, which currently relies heavily on imported fossil fuels. They also point to the economic benefits of restarting the plant, such as job creation and tax revenue.

However, opponents of the restart remain concerned about the safety of the plant, particularly given its location and the ongoing threat of natural disasters. They also argue that Japan should focus on developing renewable energy sources as a safer and more sustainable alternative to nuclear power.

In addition to safety concerns, the decision to restart the Kashiwazaki-Kariwa plant has also been met with opposition from local residents. Many people in Niigata Prefecture remain traumatized by the Fukushima disaster and are hesitant to see nuclear power production resume in their region.

What’s Next?

TEPCO is now expected to submit an application to the NRA for permission to restart the Kashiwazaki-Kariwa plant. The NRA will then conduct a safety review, which could take several years. If the NRA approves the application, TEPCO will still need to obtain the consent of local governments before it can restart the plant.

It is therefore too early to say when or even if the Kashiwazaki-Kariwa plant will actually restart operations. However, the decision to lift the ban on the plant marks a significant step in Japan’s ongoing debate about the future of nuclear power.

Public Opinion

Public opinion polls in Japan show that there is no clear consensus on the issue of restarting nuclear power plants. A recent poll found that 47% of respondents supported restarting the Kashiwazaki-Kariwa plant, while 44% opposed it. These figures suggest that the Japanese public is deeply divided on the issue, and the government will face a difficult challenge in trying to win public support for restarting the plant.

The Future of Nuclear Power in Japan

The decision to lift the ban on the Kashiwazaki-Kariwa plant is a significant development for Japan’s nuclear power industry. However, it remains to be seen whether the plant will actually be restarted, and if so, what the long-term impact of this decision will be on the future of nuclear power in Japan.

It is clear that the debate over nuclear power in Japan is far from over. The government will need to carefully consider the safety concerns of the public and weigh the economic benefits of nuclear power against the potential risks before making a final decision on the future of the Kashiwazaki-Kariwa plant and Japan’s nuclear power industry as a whole.