for Japanese


16 January, 2020

Japan’s Nuclear Power Plant Capacity Factor Stood at Just 21.4 Percent Last Year

According to data gathered by Atoms in Japan (AIJ) from all the power utilities in Japan, the capacity factor for all nuclear power plants (NPPs) nationwide in 2019 stood at just 21.4 percent. The total generated electricity by all the companies was 68.5TWh.

After the tsunami-caused accident at the Fukushima Daiichi NPPs in March 2011, the full-year nationwide capacity factor hit zero in 2014, owing to the across-the-board suspension of NPP operation. Thanks to the gradual restart of those suspended plants, the capacity factor figure was able to recover to the level of 20 percent recorded in 2019.

Although no further NPPs were restarted last year, the total generated electricity in Japan actually increased 33.1 percent from the previous year, on account of the suspension of operations at several plants stemming from court decisions.

In September 2019, operations officially ceased at the Fukushima Daini-1 to -4 NPPs, owned by the Tokyo Electric Power Co. (TEPCO). Five months earlier, in April, operations also ended at the Genkai-2 NPP, owned by the Kyushu Electric Power Co. (Kansai-EP). Those closings brought the total number of NPPs in Japan to thirty-three, with a generating capacity of 33,083MW.

Last year as well, the Takahama-3 NPP, owned and operated by Kansai-EP, was in operation for the full year, recording a capacity factor of 105.2 percent.


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, Jan. 2020)

23 January, 2020
“The current situation at Fukushima Daiichi NPS” -From 3.11 toward the future- (ver, Jan. 2020)07:47

Recent News

27 February, 2020
NRA Approves Changes to Reactor Installation for Onagawa-2 under New Regulatory Standards
27 February, 2020
Japan Atomic Energy Commission Exchanges Views with IAEA Director General Grossi during His Japan Visit
26 February, 2020
JN-HRD Net Reports Activities, Cites Gender Balance Improvement
25 February, 2020
IAEA International School to Foster Young Leaders in Nuclear Safety Held in Japan for First Time, Jointly Sponsored by Tokai University
12 February, 2020
Registration Opens for the 53rd JAIF Annual Conference
10 February, 2020
NRA Exchanges Views with Tohoku Electric President, Who Says Major Turning Point Is Approaching Toward Restart
10 February, 2020
Nuclear Reform Monitoring Committee Cites Major Progress at TEPCO, Giving High Marks to Its State of Improvement on Priority Issues
5 February, 2020
Interview with Two Experts: Former UKAEA Chair Says “Political Intentions Exist Behind Unfounded Fears and Rumors”
5 February, 2020
2021 Nuclear Recruiting Events Held in Tokyo on February 1, and in Osaka on the 16th
30 January, 2020
ALPS Achieves Treatment Volume of One Million Tons in Less than Seven Years