I would say they need more defense in wars with nuclear weapons.

''Less than 7%"

It is pretty important to them. I know this because in Japan's new energy plan they said they were going to rely on nuclear power

It is pretty important to them. I know this becuase in japans new energy plan they said they were going to rely on nuclear power

• “The tsunami which killed 19,000 people and triggered the Fukushima in 2011.”- https://world-nuclear.org/information-library/safety-and-security/safety-of-plants/fukushima-daiichi-accident.aspx

• “disabled the power supply and cooling of three Fukushima Daiichi reactors, causing a nuclear accident beginning on 11 March 2011.”-https://world-nuclear.org/information-library/safety-and-security/safety-of-plants/fukushima-daiichi-accident.aspx

• Yes, there were casualties, people have died.

• “The three units lost the ability to maintain proper reactor cooling and water circulation functions.”- https://world-nuclear.org/information-library/safety-and-security/safety-of-plants/fukushima-daiichi-accident.aspx

-fecp.or.jp

How many nuclear accidents/disasters have there been in Japan?

1 the Fukushima power plant but 3 if you include the USA bombing them

Following a major earthquake, a 15-meter tsunami disabled the power supply and cooling of three Fukushima Daiichi reactors, causing a nuclear accident beginning on 11 March 2011. All three cores largely melted in the first three days.The accident was rated level 7 on the International Nuclear and Radiological Event Scale, due to high radioactive releases over days 4 to 6, eventually a total of some 940 PBq (I-131 eq).All four Fukushima Daiichi reactors were written off due to damage in the accident – 2719 MWe net.After two weeks, the three reactors (units 1-3) were stable with water addition and by July they were being cooled with recycled water from the new treatment plant. Official 'cold shutdown condition' was announced in mid-December. Apart from cooling, the basic ongoing task was to prevent release of radioactive materials, particularly in contaminated water leaked from the three units. This task became newsworthy in August 2013. There have been no deaths or cases of radiation sickness from the nuclear accident, but over 100,000 people were evacuated from their homes as a preventative measure. Government nervousness has delayed the return of many. Official figures show that there have been 2313 disaster-related deaths among evacuees from Fukushima prefecture. Disaster-related deaths are in addition to the about 19,500 that were killed by the earthquake or tsunami. Aiden Hart

"Tremors from the 6.8-magnitude quake ignited a fire at the world's largest nuclear power plant, causing radioactive water from a reactor to spill into the sea..."

-Maya Grinberg

-International Energy Agency and the World Bank. Data for year 2020.

(https://en.wikipedia.org/wiki/Nuclear_power_in_Japan)

https://eastasiaforum.org/

No adverse health effects among Fukushima residents or power station workers have been documented that are directly attributable to radiation exposure from the accident.^{[13]: 106 [14][9]} Criticisms have been made about the public perception of radiological hazards resulting from accidents and the implementation of evacuations (similar to the Chernobyl nuclear accident), as they caused much more harm than they prevented.^[15] Following the accident, at least 164,000 residents of the surrounding area were permanently or temporarily displaced (either voluntarily or by evacuation order).^[16] This response resulted in at least 51 fatalities,^[17] with more attributed to subsequent stress or fear of radiological hazards.^[18][19][20]

Investigations faulted lapses in safety and oversight, namely failures in risk assessment and evacuation planning.^[9] Controversy surrounds the disposal of treated wastewater once used to cool the reactor, resulting in numerous protests in neighboring countries.^[21]

"Japan does not have its own nuclear weapons. The Japanese government considered developing them in the past, but decided this would make Japan less secure. Japanese opinion polls consistently express strong public opposition to nuclear weapons."

cheyennebeeny

The first nuclear power plant in Japan, the Tōkai Nuclear Power Plant, was built by the UK's GEC and was commissioned in 1966.

The first two reactors restarted in August and October 2015, with a further nine having restarted since. 16 reactors are currently in the process of restart approval.

Japan’s worst power crisis in over a decade is a culmination of events starting from the Fukushima disaster, and is an issue that the nation won’t be able to quickly shake.

"Following the 2011 Fukushima Daiichi nuclear accident, the GOJ suspended the operations of most of the country’s nuclear power reactors. However, with a national mandate to achieve carbon neutrality by 2050, Japan is again ready to embrace nuclear power as a strategic energy source."- International Trade Administration

"Up until 2011, Japan was generating some 30% of their electricity from its nuclear reactors."

Areas to the north-west of the reactor plant received high levels of contamination, especially in the prefecture of Fukushima.

Almost no foodstuffs in Japan are still contaminated today, with wild boar being one exception."

https://www.npr.org/2022/12/22/1144990722/japan-nuclear-power-change-fukushima

developing them in the past but decided this would make Japan less secure.”

cite: Nuclear Power in Japan

The first nuclear power plant in Japan, the Tōkai Nuclear Power Plant, was built by the UK's GEC and was commissioned in 1966. They got it because it enhances Japans energy self sufficiency.

https://www.fepc.or.jp/english/nuclear/necessary/index.html 

https://eastasiaforum.org/2023/06/01/japans-nuclear-dilemmas-in-a-challenging-new-era/  

https://en.wikipedia.org/wiki/Nuclear_power_in_Japan#:~:text=As%20of%20January%202022%20there,have%20restart%20applications%20under%20review. Noah Watt