for Japanese


3 April, 2015

Application of 40-year Limit on NPP Operation Would Eliminate Nuclear Power in Japan by 2049

At a meeting on March 30, the Subcommittee on the Long-Term Energy Supply-Demand Outlook, under the Advisory Committee for Natural Resources and Energy, took up the desired composition of power sources (the so-called “energy mix”), taking into consideration earlier discussions on energy conservation and renewable energies.

At the meeting, the Agency for Natural Resources and Energy (ANRE) outlined key points when considering power-source composition in line with the Strategic Energy Plan.

Electricity power sources are grouped into three categories, as follows:

  • Base-load power sources (geothermal, hydropower, nuclear power and coal), which are those that can generate power consistently at low cost and operate continually, day and night.
  • Middle power sources, which are those whose generation costs are the next most economical after those of the above, and whose output can be flexibly adjusted according to changes in demand.
  • Peak power sources, which are those with high generating costs, but with a flexibly adjustable output according to demand fluctuations.

In the decade of the 2000s, base-load power sources in Japan generally represented more than 60 percent of the total, but after the great earthquake of 2011, it fell substantially to less than 40 percent, as a result of the nationwide suspension of nuclear power. Internationally, that level is low.

On March 17 and 18, the decommissioning of the following five aging NPPs was announced: Tsuruga-1, Mihama-1 & -2, Shimane-1 and Genkai-1.

The ANRE presented trial calculations showing that if a 40-year limit on NPP operation were to be applied to all remaining NPPs in Japan, the installed capacity would be half the current level in 2031, less than 20 percent in 2038, and zero in 2049.


This site uses Akismet to reduce spam. Learn how your comment data is processed.

SNS facebooktwitter

NPPs Map


“The current situation at Fukushima Daiichi NPS” -From 3.11 toward the future- (ver, July 2019)

8 July, 2019
“The current situation at Fukushima Daiichi NPS” -From 3.11 toward the future- (ver, July 2019)09:17

Recent News

8 November, 2019
EU to Ease Restrictions on Japanese Food Imports, Though Chief Cabinet Secretary Suga Asserts Japan Will Work Toward Their Full Elimination
28 October, 2019
OCCTO’s Electricity Supply and Outlook for Winter Sees Capacity Reserve Margin of 3 Percent Nationwide
23 October, 2019
Symposium with Students Held in Tsuruga City on Future Research and Test Reactors
17 October, 2019
JAIF Holds Women’s Symposium, with Presentations by Weathercaster and Professor
7 October, 2019
Fukushima Joban Products Fair Begins, Featuring Seafood Sent Directly to Restaurants in Tokyo-Yokohama Area
3 October, 2019
Kindai University, Hayakawa Rubber Develop Easily-molded Radiation Shielding Material
30 September, 2019
MEXT Minister Shares His Hopes with the Press, Seeking to Secure Human Resources Together with Universities
19 September, 2019
Minister of State for Science and Technology Policy Attends Opening Ceremony of Japan Booth at IAEA General Conference
19 September, 2019
At 63rd IAEA General Conference, Japanese Minister of State for Science and Technology Policy Stresses Need for Science-based Discussions on Decommissioning and Contaminated Water Measures
10 September, 2019
Symposium in Tokyo Looks at Taiwanese Energy Situation, and Discusses Fear and Misinformation about Foods Sourced in Fukushima