Country profile: Japan

Summary figures for 2015

The following information is from the NEA publication Nuclear Energy Data, the annual compilation of official statistics and country reports on nuclear energy in OECD member countries.

Number of nuclear power plants connected to the grid
Nuclear electricity generation
(net TWh) 2015
Nuclear percentage of total electricity supply
OECD Pacific
OECD Total
1 878.7
NEA Total
2 073.9

* NEA estimate; N/A not available.

Country report

The Japanese government is taking thorough measures to minimise the risk of accidents, considering the experience and lessons learnt from TEPCO's Fukushima Daiichi nuclear accident. In addition, in the case of an accident, the government will cope responsibly with the accident based on the related legislation.

The Strategic Energy Plan of Japan was revised in 2014 and stated that "On the premise that safety comes first and that every possible effort is being made to resolve people's concerns, judgement as to whether nuclear power plants meet the new regulatory requirements will be left to the Nuclear Regulation Authority (NRA). In the case that the NRA confirms conformity of nuclear power plants to the new regulatory requirements, the Japanese government will follow NRA judgement and proceed with the restart of nuclear power plants". Additionally, a new long-term electricity supply policy was set up in July 2015 and envisioned nuclear power supplying 20-22% of electricity in Japan in 2030.

Following the principles set up in the Strategic Energy Plan, two nuclear reactors, Sendai 1 and Sendai 2, restarted in August and October 2015, respectively, for the first time since the new regulation had taken effect after the Fukushima Daiichi nuclear accident.

Japan is also taking all necessary measures and promoting related research and development to ensure nuclear non-proliferation and to strengthen nuclear security in light of international developments, including hosting the Nuclear Security Summit and adopting the revised Convention on the Physical Protection of Nuclear Material.

Source: Nuclear Energy Data 2016

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Last reviewed: 21 December 2016