The data below is early information provided by TEPCO that they have now moved or deleted from their website. Those that can be found on Archive.org or
other sources are re-linked to a new source. You may also find much of TEPCO’s data in our archive here.
For newer TEPCO data check our TEPCO data links page.
TEPCO has changed (and scaled back) its reporting. The following are the new locations for TEPCO reports with instructions on how to adjust the address to get reports for different days.
**TEPCO yet again changed page location formats adding the 2012parameter directory. The links below have been updated to reflect the new change as of 3.25.2012
New File Formats as of mid-March 2012
* In file formats to see a new day or month change the following numbers to the date or month desired.
03 = month 19 or 20 = day
Table Summary -EN
https://web.archive.org/web/20120703053442/http://www.tepco.co.jp/nu/fukushima-np/f1/images/2012parameter/12032511_table_summary-j.pdf
Table Summary – JP
https://web.archive.org/web/20120703053442/http://www.tepco.co.jp/nu/fukushima-np/f1/images/2012parameter/12032511_table_summary-j.pdf
Reactor Temp (limited to RPV only) – English
https://web.archive.org/web/20120618095311/http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/120325_data_3u_g-e.pdfhttp://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/120325_data_3u_g-e.pdf
Reactor Temp (limited to RPV only) – Japanese
These links are now dead and not archived. Similar data can now be found here
on TEPCO’s website. https://www.tepco.co.jp/nu/fukushima-np/f1/pla/2011/index-j.html
http://www.tepco.co.jp/nu/fukushima-np/f1/images/2012parameter/120319_data_3u_g-j.pdf
http://www.tepco.co.jp/nu/fukushima-np/f1/images/2012parameter/120325_data_2u_g-j.pdf
http://www.tepco.co.jp/nu/fukushima-np/f1/images/2012parameter/120325_data_1u_g-j.pdf
Temp Graphs & Table Summary Archive Starting March 16
These links are dead. This data is now available only in Japanese at this link:
https://www4.tepco.co.jp/decommission/data/plant_data/archive/index-j.html
English
http://www.tepco.co.jp/en/nu/fukushima-np/f1/parameter-e.html
Japanese
http://www.tepco.co.jp/nu/fukushima-np/f1/parameter-j.html
Hourly CSV Files – English
These links are dead. This data is now available only in Japanese at this link:
https://www4.tepco.co.jp/decommission/data/plant_data/archive/index-j.html
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_1h_data_1u-e.csv
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_1h_data_2u-e.csv
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_1h_data_3u-e.csv
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_1h_data_56u-e.csv
(unit 4 is missing)
CSV File Every 6 Hours – English
These links are dead. This data is now available only in Japanese at this link:
https://www4.tepco.co.jp/decommission/data/plant_data/archive/index-j.html
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_6h_data_1u-e.csv
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_6h_data_2u-e.csv
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/2012parameter/csv_6h_data_34u-e.csv
Water Levels (Flooded Buildings Etc.) English
These links are dead. TEPCO has not provided an archive of this data and we are unable to
find copies online.
http://www.tepco.co.jp/en/nu/fukushima-np/tairyusui/12032002-e.pdf
Water Levels (Flooded Buildings Etc.) Japanese
http://www.tepco.co.jp/nu/fukushima-np/tairyusui/12032002-j.pdf
Plant Data Prior To March 16 – English
Dead links. TEPCO has not archived this data. We do have most of this from METI and can be found here.
http://www.tepco.co.jp/en/nu/fukushima-np/f1/index5-e.html
Plant Data Prior To March 16 – Japanese
http://www.tepco.co.jp/nu/fukushima-np/f1/index5-j.html
Index of new files English
This link is active
http://www.tepco.co.jp/en/nu/fukushima-np/index-e.html
Index of new files Japanese
This link is active
http://www.tepco.co.jp/nu/fukushima-np/index-j.html
Press Handouts – English
This link is active. For newer year’s press handouts use our TEPCO data links page
http://www.tepco.co.jp/en/nu/fukushima-np/images/handouts_120319_01-e.pdf
03 = month
19 = day
01 = number of the handout * keep going up one number until you run out. They sometimes release up to 6 or more a day.
JP photo page
This link is active. For newer year’s press handouts use our TEPCO data links page
http://photo.tepco.co.jp/date/2012/201203-j/120322-01j.html
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Old Page Formats
These links are dead. Most table summary reports can be found in TEPCO’s updated archives but are in Japanese only.
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/12031811_table_summary-e.pdf
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/12021112_table_summary-e.pdf
Table summary: first 12 is the year, 02 is the month, 11 the day. Not sure what the last 12 is for
Unit 2 data can be found in TEPCO’s updated archives but are in Japanese only.
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/12021112_temp_data_2u-e.pdf
Unit 2 temp data sheet. 12 is the year, 02 the month, 11 the day, Not sure the last 12 is?
2u-e means unit 2 and e for English
Archive.org has some of this data available:
https://web.archive.org/web/20120215200257/http://www.tepco.co.jp/en/press/corp-com/release/12021104-e.html
http://www.tepco.co.jp/en/press/corp-com/release/12021104-e.html
General press release. 12 the year, 02 the month, 11 the day. 04 could be the number of the handout sent that day ie: 01,02,03,04 etc as they make new releases that day
http://www.tepco.co.jp/en/nu/fukushima-np/images/handouts_120207_06-e.pdf
Handouts for the press: 12 year, 02 month, 07 day. 06 is the number of the handout for that day.
These links are still active.
Ongoing temp chart for 2, same web addy daily – dead link
http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/12022612_temp_data_2u-e.pdf
another that seems to use same URL – this link is active as of 2021
http://www.tepco.co.jp/nu/fukushima-np/f1/images/2u_temp4.pdf