N uclear Saf ety Reform Plan - TEPCO · v m ♦ In u to p (a ♦ F 1 in tr th F lug were m icinity...
Transcript of N uclear Saf ety Reform Plan - TEPCO · v m ♦ In u to p (a ♦ F 1 in tr th F lug were m icinity...
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Nucclearr Saf
Toky
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, Inc. 2017
Foreword
I would like to offer my deepest apologies for the inconvenience and concern that the
Fukushima Nuclear Accident continues to cause the siting community, and society as a
whole, even today, six years after the accident.
On March 29, 2013, TEPCO announced its Reassessment of the Fukushima Nuclear
Accident and Nuclear Safety Reform Plan in an effort to reaffirm our commitment to
the never-ending improvement of nuclear safety, which has no bounds. Based on our
deep regret over the Fukushima Nuclear Accident we shall rid ourselves of
overconfidence and conceit about safety and continue to implement nuclear safety
reforms. The following is a report on the progress that we have made during the first
quarter of FY2017 (April through June 2017).
On June 23, I took over as president and head of the Nuclear Reform Special Task
Force. By leading through example, I shall push forward with nuclear safety reforms
and engage in efforts to improve the operation and management of TEPCO so that we
may become a nuclear operator that can boast the world’s highest levels of safety based
upon three common values: never compromising when it comes to safety and quality,
strengthening our ability to train individuals and the ability of departments to learn, and
building trust with stakeholders.
In conjunction with the handing over of the reigns to new management at TEPCO a
new management policy has been announced. The three keywords of “open,” “create,”
and “accomplish” are common to both the management policy and nuclear safety
reforms. In its handling of such issues as obscure information disclosure, its nuclear
power business, the Niiza cable tunnel fire, and the delayed invoicing of consignment
fees, TEPCO has failed to sufficiently address these issues from the perspective of its
customers and society, thereby causing distrust amongst the people. Therefore, we will
create a corporate culture based on the universal ideas of “prioritizing safety,”
“prioritizing the local community,” and “standing in the shoes of our customers,” in
order to “look at issues from the perspective of society and our customers, create
transparency and regain the trust of society.”
In TEPCO’s Revised New Comprehensive Special Business Plan (Third Plan), which
was approved on May 18, it was made clear that we shall engage in nuclear power
generation and reactor decommissioning while prioritizing safety and the local
community. We have widely conveyed our intentions to the siting community and
society as a whole and are making great efforts to restore trust in TEPCO through
repeated dialogue with stakeholders aimed at improving understanding.
The report on the findings of the Nuclear Reform Monitoring Committee held on
June 5 included two expectations:
“We hope to see safety culture permeate through every corner of the organization
without dependency on specific leaders or monitoring by this committee, and
become a part of the DNA of Tokyo Electric Power Company Holdings.”
“We would like the new management at Tokyo Electric Power Company Holdings
to continue to push strongly forward with nuclear reforms.”
I and the other members of new management at TEPCO will fulfill our
responsibilities as the main party responsible for the Fukushima Nuclear Accident and
shall meet the expectations of the Nuclear Reform Monitoring Committee. Furthermore,
we will listen carefully to the opinions of external review agencies, such as the IAEA,
WANO, INPO and JANSI, and examine the gap in excellence between us and other
nuclear operators both domestic and abroad while benchmarking with excellence in
other industries as we aim for even higher levels of safety. That being said, there are still
many issues that TEPCO needs to resolve, so reforms and improvements must be
accelerated even further. In order to achieve this, I shall clarify internal responsibility
and authority, and improve communication and governance, such as the way decisions
are made.
In order to prevent the experience with and the lessons learned from the Fukushima
Nuclear Accident from being forgotten and ensure that a severe accident never occurs
again, I shall promote nuclear safety reforms under the resolution to, “keep the
Fukushima Nuclear Accident firmly in mind; we should be safer today than we were
yesterday, and safer tomorrow than today; we call for nuclear power plant operations
that keeps creating unparalleled safety.”
President and He
ead of the Nuclear R
Tomoa
Reform Spe
July
aki Kobaya
ecial Task F
2017
akawa
Force
Table of Contents
Foreword ..................................................................................................................................... 2
1. Progress with Safety Measures at Nuclear Power Stations ...................................................... 6
1.1 Progress of Reactor Decommissioning .............................................................................. 6
1.2 Progress with Safety Measures at the Kashiwazaki-Kariwa Nuclear Power Station .............. 14
2 The Progress Status of Nuclear Safety Reform Plan (Management) ........................................... 20
2.1 Initiatives to Enhance Governance by Nuclear Power Leaders........................................... 21
2.2 Measure 1 REFORM FROM TOP MANAGEMENT ....................................................... 26
2.3 Measure 2 ENHANCEMENT OF OVERSIGHT AND SUPPORT FOR MANAGEMENT .. 31
2.4 Measure 3 ABILITY TO PROPOSE DEFENSE IN DEPTH/CAPABILITY FOR
PROPOSING DEFENSE-IN-DEPTH .................................................................................. 39
2.5 Measure 4 ENHANCEMENT OF RISK COMMUNICATION ACTIVITIES ..................... 50
2.6 Measure 5 ENHANCEMENT OF POWER STATION AND HEAD OFFICE EMERGENCY
RESPONSE CAPABILITIES .............................................................................................. 59
2.7 Measure 6 DEVELOPMENT OF PERSONNEL FOR ENHANCING NUCLEAR SAFETY 63
2.8 KPI/PI Performance and Assessment .............................................................................. 73
3. Status of Initiatives to Handle the Main Anti-Earthquake Problem ............................................ 76
3.1 Accelerating Nuclear Safety Reforms ............................................................................. 76
3.2 Improvement Measures to Respond to the Concerns Expressed by Residents of Niigata
Prefecture ......................................................................................................................... 78
Conclusion ................................................................................................................................ 80
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1.2 Progress with Safety Measures at the Kashiwazaki-Kariwa Nuclear Power Station
(1) Progress with safety measures
At the Kashiwazaki-Kariwa NPS, an application has been made to modify the
installation permit based on the lessons learned from the Fukushima Nuclear
Accident. And, safety measures are being implemented with a focus on Units 6 and
Unit 7.
<Progress with Safety Measure Renovations> Safety Measures Unit 6 Unit 7
Preparations for tsunami and internal inundation
Tidal wall (sea wall) construction Completed
Installation of tidal walls for buildings (including flood barrier panels) For Units 1-4
Installation of water-tight doors in reactor building, etc. Completed Completed
Installation of tidal walls at switchyards* Completed
Installation of tsunami monitoring cameras Completed
Improving the reliability of flooding prevention measures (interior flooding measures)
Underway Underway
Dyke construction Completed Completed
Flooding prevention measures for the Heat Exchanger Building For Units 1-5
Installation of permanent bilge pumps in rooms housing important equipment
Completed Completed
Preparations for power loss [Augmenting power sources]
Additional deployment of air-cooled gas turbine power supply cars Underway Underway
Installation of emergency high voltage distribution panels Completed
Laying of permanent cables from emergency high-voltage distribution panels to reactor buildings
Completed Completed
Preparation of substitute DC power sources (batteries, etc.) Underway Completed
Reinforcement of transmission tower foundations* and strengthening of the seismic resistance of switchyard equipment*
Completed
Preparing for damage to the reactor core or spent fuel [Augmenting heat removal and cooling functions]
Installation of substitute submersible pumps and substitute seawater heat exchanger equipment
Completed Completed
Installation of high pressure substitute for water injection systems Underway Underway
Building of water sources (reservoirs) Completed
Enhancement of the seismic resistance of pure water tanks on the Oominato side*
Completed
Preparing for damage to the primary containment vessel or the reactor building [Measures to prevent damage due to excessive PCV pressure and prevent a hydrogen explosion]
Installation of filtered venting equipment (aboveground) Performance tests
completed2
Performance tests
completed
Installation of filtered venting equipment (below ground) Underway Underway
Installation of substitute circulation cooling system Underway Underway
Installation of equipment for keeping the top of the PCV filled with water
Completed Completed
Installation of H2 control and hydrogen detection equipment in reactor buildings
Completed Completed
Installation of top vents in reactor buildings* Completed Completed
Installation of corium shields Completed Completed
Preventing the dispersion of radioactive materials
Deployment of large volume water dispersion equipment Completed
2 Work in the vicinity is ongoing (at both Units 6 and 7)
Preparing for fires [Countermeasures for external and internal fires]
Construction of fire belts Underway
Installation of fire detectors in parking lots on high ground Completed
Installation of fire detectors and buildings Underway Underway
Installation of fixed firefighting systems Underway Underway
Installation of cable wrappings Underway Underway
Construction of fire resistant barriers Underway Underway
Addressing external hazards
Countermeasures for building openings Underway Underway
Removal of objects that could turn into flying debris as a result of a tornado
Underway Underway
Installation of spare book filter for ventilation and air conditioning systems
Completed Completed
Improvements to Main Control Room and Emergency Response Center environments
Measures to reduce operator exposure in the event of a severe accident Underway
Strengthening emergency response
Construction and reinforcement of multiple access routes Underway
Enhancement of communications equipment (in relation of satellite phones, etc.)
Completed
Enhancement of environment monitoring equipment/additional deployment of monitoring cars
Completed
Erection of emergency materials and equipment warehouse on high ground*
Completed
Construction of Emergency Response Center in Unit 5 Underway
*Countermeasures implemented as part of voluntary initiatives on behalf of TEPCO
Safety measure progress that has been made to during the first quarter is as follows
♦ Enhancing emergency response
Construction and reinforcement of multiple access routes
In order to make access routes redundant and to consider liquefaction of
the ground under the seawall on the Arahama side, a new access route
(1.9km in length) for traveling from the main building to the Unit 5
Emergency Response Center will be built on ground that is higher than
design standard tsunami height (at least 12m above sea level). A firebreak
at least 20m in width will also be created in order to protect this new
access route from forest fires. Mortar will be used to create the firebreak in
order to make it resistant to fires and the area will be paved to prevent
vegetation from growing. Construction of the access route and the fire belt
began in April and work is underway to fell trees and build slopes.
(2)
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eview
of all inspection documents from all departments, and submitted the results of initiatives
implemented to improve the reliability of inspection documents to the Nuclear
Regulation Authority on June 16.
The major changes between the original application and the revised application are as
follows:
Major Change Original Application Revised Application
Addition of design basis earthquake ground motion
- In light of the seismic motion witnessed during the earthquake that occurred in Rumoi, Hokkaido after the original application was submitted, a new design basis earthquake ground motion Ss-8 (seismic motion with no specific hypocenter) was added to reflect new knowledge about underground structures.
Change to standard tsunamis (Arahama side (Unit 1-4 side))
Front of water intake: 6.0m Maximum run-up height: 8.5m
Front of water intake: 6.8m Maximum run-up height: 7.6m Run-up height on Arahama side of site: (added):
6.7m
Change to equipment subject to natural phenomenon design standards
Maximum wind speed of design basis tornadoes: 69m/sec.
Standard temperature (low temp.): -15.2°C (24-hour operation)
Standard rainfall:- Height of volcanic ash deposits: 30cm
Maximum wind speed of design basis tornadoes: 92m/sec.
Standard temperature (low temp.): -2.6°C (173.4-hour continuous operation)
Standard rainfall: 101.3mm/h Height of volcanic ash deposits: 35cm
Changes to filtered vent design
- Installation of remotely operated manual operating equipment
Installation of iodine filters (removes at least 98% of gaseous iodine (organic iodine))
Installation of the vent line bypass line
Addition of substitute circulation cooling system
- In addition to filtered events, a substitute circulation cooling system has been added as a means of removing heat from the primary containment vessel (PCV)
Changes to filtered vent-related sections of the application
The application mentions installation of PCV pressure relief equipment and substitute PCV pressure relief equipment as equipment for preventing damage to the primary containment vessel caused by over-pressurization
The application clearly states that in accordance with requests from Niigata Prefecture, rules for using filtered venting equipment will abide by evacuation plans for the local community and the equipment shall not be used without receiving permission in accordance with the Safety Agreement.
Addition of substitute circulation cooling system (deletion of substitute primary containment vessel pressure relief equipment (underground filtered vents))
The revised application clearly states that the superintendent has the authority to vent the PCV using PCV pressure relief equipment and that s/he shall take responsibility for such action (whereas discussions at the inspection meeting resulted in the deletion of the original statement, the conditions put forth by Niigata Prefecture shall be complied with)
Addition of substitute PCV spray system
- Addition of measures to inject cooling into the PCV using fire engines
(portable)
Installation of corium shields
- Corium shields will be installed to lower the possibility that PCV function is impacted from molten fuel that has eaten through the concrete at the bottom of the PCV
Deployment of large volume water dispersion equipment
- Large volume water dispersion equipment will be installed to prevent radioactive substances from the reactor buildings from dispersing (preventing dispersion into the atmosphere by dispersing large volumes of water (900m3/hour))
Changes to Main Control Rooms
- An evacuation room will be built in the Main Control Rooms to reduce operator exposure in the event of reactor core damage
Major changes made in relation to the Emergency Response Center
The original application mentions that the Emergency Response Center will be located inside the Main Anti-Earthquake Building
Preparations are being made to construct the Emergency Response Center inside the Unit 5 reactor building (in conjunction with this and access route from the Main building and fire belt will also be constructed)
Methods for effectively using the main anti-earthquake building, such as a place for non-emergency response personnel on standby to wait, etc., will be deliberated.
Design changes to other severe accident evacuation location equipment
Fire engines: 11 Gas turbine generator: 3
Additional fire engines:17 Additional gas turbine generator trucks: 4 (two
each in different locations) Installation of reactor building H2 control
equipment operation monitoring temperature gauge.
Preparation of small radiation monitoring boat on the sea side.
Improvement of heat resistance of material used for the primary containment vessel top head flange seal
Major changes made to technical capabilities during severe accidents
- The new application states that in the event of a simultaneous disaster at both Units 6 and 7, the response to a severe accident shall be implemented under the direction of the operation shift team assistantship supervisor on duty at each unit. (The shift supervisor shall be in charge of communicating and coordinating with the Emergency Response Center and coordinating between units)
Revision of emergency response personnel exposure assessments
- Setting severe conditions for, and assessing, severe accidents has shown that it will be possible to contain an accident without exceeding the maximum exposure limit (100mSv)
Changes to the major assessment conditions for severe accident countermeasure effectiveness assessments
- Predicted accident scenarios resulting in a total loss of all AC power were subdivided (into three subdivisions), and it was confirmed that in all of these scenarios the reactor core would not be damaged.
The case of using the alternate circulation cooling system was added to the “reactor coolant loss (major LOCA) + Emergency Core
Standby Cooling System (ECCS) cooling water injection function loss + total loss of AC power” scenario
The amount of time until the commencement of PCV venting in the “reactor coolant loss (major LOCA) + Emergency Core Standby Cooling System (ECCS) cooling water injection function loss + total loss of AC power” scenario was extended from 25 hours after the accident, to 38 hours after the accident. (reflects improvements to skill and management through training)
The amount of radioactive substances discharged was assessed under extremely severe conditions in order to assess worker exposure and it was confirmed that the amount of Cesium 137 released would fall below assessment guidelines (100TBq or less)(total release rate is approximately 16TBq)
We shall continue to be meticulous in our handling of Nuclear Regulation Authority
inspections and strives to further improve safety based upon the lessons learned from
the Fukushima Nuclear Accident.
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In the wake of the main anti-earthquake building problem, we are engaging in
initiatives aimed at fostering better relationships between people within the
organization in order to enable the smooth conveyance of information both
horizontally and laterally within the Nuclear Power Division.
On March 24 two core members were chosen and in the first quarter internal
communication teams were formed at the Head Office and each power station.
During the first quarter, each team engaged in activities to discuss the intentions
of the team and the reasons for its establishment, such as the main anti-earthquake
building problem, as well as discussions about internal communication problems
that each department faces. As a result, common problems were identified, such as
the inability to accurately share information between departments and positions, and
a tendency to not be interested in the work of departments other than one’s own. At
the same time, the internal communication teams of each department are working
together to plan and share information in an effort to formulate initiatives, and invite
external experts to help with specific problems that need to be solved based upon
the understanding that underlying contributors and priorities differ depending on the
department.
(2) Enhancing the Sharing of Information about Important Work Issues in the Nuclear
Power Division
Since July 2016, each site superintendent and Head Office general managers have
been sending e-mails to all members of the Nuclear Power Division about important
work issues in order to share information on these matters. Since October 2016 we
have been conducting electronic questionnaires designed to gather opinions about
the messages that were conveyed and also confirm the level of understanding7 of
these messages and whether or not they were received. During the first quarter
response rate was 39.7% (objective: 70% or more), and the level of understanding
was 2.4 points (objective: 2.5 points or more). Compared to the fourth quarter,
response rate increased by 4.3 points, and there was no change in the level of
understanding.
The results of the questionnaire and opinions about messages are being provided
7 Measured on a four-step scale with 1 being "well understood" and 4 being "not very well understood"
as feedback to the sender in order to improve subsequent messages.
(3) Change Management
Change management is a systematic method for preventing risks from
manifesting and achieving expected goals by identifying those parties that’ll be
affected by organizational and operational changes and responding in a planned
manner, such as by giving detailed briefings, to anticipated risks.
During the first quarter, revisions of the change management guide created in
2014 began. Up until now the guide had only applied to large-scale organizational
restructuring and tasks changes, but the scope of the guide has been expanded to
include issues (large-scale improvements, etc.) that affect many employees. In
conjunction with this, efforts are being made to deepen understanding of change
management as an effective tool for developing internal communication and enable
it to permeate through business tasks.
2.2 Measure 1 REFORM FROM TOP MANAGEMENT
2.2.1 Initiatives Related to Suggestions from the Nuclear Reform Monitoring
Committee
(1) Activities to develop communication and understanding amongst contractors
In order to improve nuclear safety at TEPCO’s nuclear power stations, contractors
must have an understanding of nuclear safety reforms and cultivate nuclear safety
culture. In continuation from FY2016Q4, representatives of management from the Head
Office and the Head Office Safety Culture Cultivation Activity Secretariat have been
visiting the headquarters of contractors in order to exchange opinions on nuclear safety
with contractor executives at power stations. (April 26: one company, May 29: two
companies, June 23: two companies). Through these opinion exchanges the efforts of
each contractor to foster the 10 traits and 40 behaviors of robust nuclear safety culture
were examined. At the same time, since the 10 traits are conceptual, it was realized that
the 10 traits should be linked to actual duties and explained in an easy-to-understand
manner to enable more workers to accept the concept. We will continue to engage in
dialogue with contractors in order to deepen mutual understanding of nuclear safety.
(2) Reflecting on the 10 traits of individuals and the organization (enabling nuclear
safety culture to permeate the organization)
In the Nuclear Power Division, we have stipulated the, “individual, leader and
organizational traits needed to embody robust nuclear safety culture (10 traits and 40
behaviors for robust nuclear safety culture).” By using these traits to reflect on and
compare one’s own actions with ideal behavior on a daily basis, we are encouraging
employees to notice the differences in efforts to improve safety awareness.
The rate of self-retrospection during the first quarter was approximately 93% (+1%
compared with FY2016 Q4) and efforts will continue to ensure that this activity is
engaged in.
The implementation rate of group discussions, which are used to share the results of
individual self-retrospection, learn from each other, and take notice of new issues, was
86% (-2% compared to FY2016 Q4), so efforts will need to revitalize this activity.
(3) N
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s
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special risk
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8 86
4Q 2017 1Q
ks
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nt
arters
other
age in
unit
superintendents, Nuclear Safety Center director, power station general
managers) in order to improve the safety awareness of the entire organization.
During the first quarter, discussions were held on the topics of looking at issues
from the perspective of the local community and communication with the
region. (Kashiwazaki-Kariwa: April 26, June 28, Fukushima Daini: May 18).
♦ Messages from nuclear power leaders
In order to promote nuclear safety reforms, nuclear power leaders must
accurately convey their expectations, and the reasons for those expectations, so
that they permeate throughout the entire organization. In order to do this,
nuclear power leaders are leveraging video messages, intranet messages, email,
meetings and morning meetings as opportunities to convey their expectations.
The following graph shows the number of times that messages by nuclear
power leaders have been read by employees via the intranet. During the first
quarter, the number of employees that read each message rose to 2,400 and the
percentage of people who rated the message as “helpful” rose to 21.3% thereby
showing a slowly increasing trend.
Number of views per message sent via the intranet/”Helpful” assessment rate
In order to convey “thoughts” that cannot be completely conveyed through
written messages over the intranet, the General Manager of the Nuclear Power
& Plant Siting Division has been engaging in direct dialogue with power
station personnel and headquarter employees since February 2014.
715.9
1,023.8 919.8
1,017.3 941.9
1,276.1 1,234.8
1,617.7 1,649.8
2,095.6 1,996.9
2,404.3
6.8%8.9%
16.8% 16.4%18.2%
16.8% 15.1% 14.4% 14.5%
19.4% 21.1% 21.3%
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
0
500
1000
1500
2000
2500
20142Q
20143Q
20144Q
20151Q
20152Q
20153Q
20154Q
20161Q
20162Q
20163Q
20164Q
20171Q
No. of views/message
Percentage of people that felt the message was “helpful”
Number of times direct dialogue was engaged in between the General Manager of the Nuclear Power and
Plant Siting Division and workers
♦ Commendations given by the General Manager of the Nuclear Power & Plant
Siting Division and the president of the Fukushima Daiichi Decontamination &
Decommissioning Engineering Company
Since FY2015, the General Manager of the Nuclear Power and Plant Siting
Division and the president of the Fukushima Daiichi Decontamination &
Decommissioning Engineering Company have given awards to those people
that have led the way and taken on great challenges, and people who have
achieved high objectives in regards to the Nuclear Safety Reform Plan and
other missions. The following chart shows the number of commendations that
were given.
Commendations given by the General Manager of the Nuclear Power and Plant Siting Division and the
president of the Fukushima Daiichi Decontamination & Decommissioning Engineering Company
Period Head Office Fukushima Daiichi NPS
Fukushima Daini NPS Kashiwazaki-Kariwa
FY2015 24(2) 47 19 24 FY2016 25(1) 19 14 25 FY2017
Q1 4(1) 2 4 10
(Numbers in parentheses indicate the number of commendations given at Higashidori)
♦ Gathering information on notifications that were given and information that was
disclosed during the accident
Many facts about the accident have been revealed by the government’s
Investigation and Verification Committee. However, in order to improve
nuclear safety going forward and contribute to improving how events are
reported and disclosed to the public, employees are being encouraged to
4
18
37
16
3
1512 13 12
14
7
0
10
20
30
40
20143Q
20144Q
20151Q
20152Q
20153Q
20154Q
20161Q
20162Q
20163Q
20164Q
20171Q
Num
ber
of ti
mes
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ect
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No.
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es)
proactively report anything that they find to be missing from these
investigation reports via an intranet site that has been set up for that purpose
(June 21, 2016). No information or opinions were provided through the site
during the first quarter.
(2) Enabling nuclear safety culture to permeate throughout the entire organization
♦ Safety Council Meetings
In June 2016, a Safety Council8 was established to enable the Nuclear Power
& Plant Siting Division to discuss safety with Fukushima Daiichi
Decontamination & Decommissioning Engineering Company (FDEC)
management, share problem awareness, and promote the quick implementation
of common countermeasures.
During the 4th Safety Council meeting, a discussion was held on the topic of
activities to cultivate safety culture amongst contractors (June 2). The
discussion reaffirmed the necessity to continue dialogue with contractors and
develop activities for cultivating safety culture, such as conveying the
importance of not only work safety, but also nuclear safety.
♦ Assessing the status of nuclear safety culture
During FY2016, TEPCO’s Safety Culture Promotion Secretariat spearheaded
an assessment of the status of safety culture at Fukushima Daini through
interviews and field observation. Fukushima Daini used the results of this
assessment as input and began a safety culture cultivation campaign in April
2017 with the cooperation of contractors that focuses on “complying with rules
and procedures,” which was an issue identified as being far from ideal.
During FY2017, An assessment of the state of nuclear safety culture at the
Fukushima Daiichi NPS is being planned/implemented in cooperation with the
field diagnosis initiatives9 implemented by the Japan Atomic Nuclear Safety
Institute (JANSI). During the field diagnosis, JANSI interviewed 53
Fukushima Daiichi NPS personnel (May 15-19). The results of these interviews
will be analyzed and TEPCO and JANSI will assess the status of safety culture
at the Fukushima Daiichi NPS.
8 The Council is comprised of the General Manager of the Nuclear Power & Plant Siting Division, FDEC President, power station site superintendents, and Head Office general managers. 9 Field diagnosis: employees from JANSI’s Safety Culture Cultivation Support Department conduct interviews with everyone from general employees to the site superintendent in order to ascertain the state of awareness of power station personnel and point out “things noticed” from the perspective of an outside party thereby providing support for safety culture cultivation.
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Nuclear Safety Oversight Office (NSOO) Quarterly Report
(2017 Quarter 1 Report)
Foreword
This report summarises the Nuclear Safety Oversight Office (NSOO) assessment results for
2017, Quarter 1 (April through June). Recommendations, advice and observations have
been discussed with the relevant management as they arose and have already been accepted
and acted on (or actions are planned). They are not repeated in this summary.
The amount of assessment done in this quarter was less than normal as several key staff
assisted with performing an independent check of safety documentation before submission to
NRA. This was seen as an important oversight activity and within the NSOO remit.
1. Safety Performance
The Assessment Team and the Senior Reactor Engineers (SRE) on site reports continue to indicate
steady improvement in safety in many areas.
There are still areas for improvement and the following summarizes the observations made and
advice given.
1.1 Fukushima Daiichi
The assessment teams have looked at Unit 1 SFP Removal, Emergency Preparedness and Human
Resource Development, and made the following observations;
As for the Unit 1 SFP Removal project, in order to achieve efficient decision making by the
project manager, the middle managers should clarify their responsibilities and reinforce
their ability of execution and management both for the individual technical study and
intra-group coordination.
There is room for improvement in the development of procedures for the Restoration team
as an emergency response organization and the level of effectiveness of their trainings.
Head of the Restoration team should instruct his Group Managers in charge of facility and
execute their responsibilities, while Nuclear Disaster Prevention Group should strengthen
its accountability including verification and the Nuclear Human Resources Development
Center should solidify its support to improve the education.
The Nuclear Human Resources Development Center launched a new system that reinforces
the governance of top managements on the improvement of the training program.
aContinuous improvement is expected going forward by clarifying input and output of
meetings and establishing process to capture emerging training needs.
The Senior Reactor Engineers on site have provided a matrix of detailed performance data for the
site management against the new Fundamentals. In particular they highlight:
The need to install instruments to directly monitor the Spent Fuel Pools water levels and
temperature.
Improvements needed to the design change process with respect to modifications and
temporary work
The need to shorten inspection periods of the Emergency Diesel Generators to reduce the
time with reduced back up.
1.2 Fukushima Daini
The Assessment Team has focused on Emergency Preparedness and, although there has been good
training to improve emergency preparedness, it is necessary to re-confirm the role assignments of
each functional team through family drills and also re-confirm the details and adequacy of
frequency of individual drill items.
The Senior Reactor Engineers on site have provided a matrix of detailed performance data for the
site management against the Functional Areas. In particular they highlight:
Many of challenges in the field are related to contractors, so their awareness and
behaviours as well as TEPCO employees should be improved.
The causal and trend analysis in the non-conformance management should be improved and
strengthened. In addition, the current practice of non-conformance management meetings
should be reviewed for its purpose and aims with ensuring PDCA cycle to improve overall
performance.
Many findings from the recent JANSI Peer Review are similar to those raised during the
past reviews. When the site takes improvement actions, they need to pay close attention to
the effectiveness and sustainability of the actions, as well as benchmarking the world’s
excellence. In addition, it is important to get CFAM at the Headquarters involved in the
activities.
1.3 Kashiwazaki Kariwa
The assessment teams have looked at Re-start, emergency preparedness, Operations management,
and long term engineering capabilities, and made the following observations;
The KK6/7 Re-start Project is a good initiative, although some of the basic design
operation at HQ was delayed due to NRA document submission priorities. Actions are
being taken to remedy earlier observations by NSOO.
Good work continues on emergency preparedness although there is room for improvement
for the Restoration Teams in the sense that they need to develop comprehensive and
effective procedures and conduct individual training.
To reinforce operators’ Fundamentals Conduct of Operations in the field it is necessary to
improve the management of change with current manuals and guides. We observed lack
of coordination between Corporate and the Site and poor leadership by Corporate in
particular.
Differences were identified between design reviews conducted by TEPCO and those by
plant manufacturers and the information was provided to reform the DR system.
The Senior Reactor Engineers on site have provided a matrix of detailed performance data for the
site management against the Functional Areas. In particular they highlight:
Activities derived from the Business Plan are effectively checked and implemented.
Respective departments analyze weakness and take actions to achieve targets of the site. As
a result, for instance, the number of significant non-conformances have become halved
year on year in FY2016.
The non-conformance in the penetration survey following Shika NPS event clearly raised
shared-awareness for the significant challenge on “organizational barriers in
communication.” In order to have the behavior of good project managers deep-rooted, it is
necessary to clarify the sponsorship and respective roles of senior managers and permeate
them, as well as ensuring the follow-up of the state of execution.
General Managers have repeatedly provided instructions to control deadlines of requests
for equipment repairs and to rectify the practice of insufficient lighting in the plant.
Front-line operators are often poor at voluntary management of their field. Management
observations and Fundamentals should be employed as effective tools so that operators are
promoted to act in a self-governing manner.
1.4 Corporate
Enhancing emergency response capability of the HQ personnel
As a preparation for the case of emergencies, the responsible personnel needs to undertake trainings
to maintain required emergency response capability. However, the result of participation to the
emergency drills last year indicated that there are multiple personnel who failed to show up the
drills. It is necessary to strictly control personnel in their training results and competence to
enhance their emergency response capacity.
Footnote to Section 1
NSOO re-iterates that all these and other detailed observations have been discussed with line
managers and actions and improvements are already underway in many areas.
2. CNSO Insights from Assessments
2.1 Governance
In general, the Governance of the training of the Restoration Teams in the Emergency
Response Centres needs improvement, though levels are different by site and corporate. This
is caused by poor implementation, exacerbated by poor accountability, responsibility,
authority and prioritization. Improvements are needed in the following areas;
- Drill Priority sharing among the entire organization
- Clear Accountability, Responsibility and Authority for drill
- Establishment of systems for managing drill implementation
- Permeation of expectations on capability of emergency response
CNSO further suggests that this problem may be common to other Cross-Functional projects.
CNSO suggests that TEPCO should improve the structural aspects to make sure that people
have the tools and the mechanisms to both manage and deliver all cross functional projects.
2.2 Nuclear Business Acumen of the Board.
CNSO suggests that the Board should assess, and if necessary improve, its abilities in the
area of nuclear technology and nuclear safety.
2.3 Nuclear Risk and Efficiency Initiatives.
The Executive should ensure that the current efficiency initiatives do not disturb the balance
between safety and delivery and that nuclear safety is not jeopardized.
2.4 Past Recommendations to the Executive and Board
As this is a new executive team, in particular the President and CNO (including the CNO's
immediate team), CNSO takes this opportunity to remind them of some of the more
important ongoing issues raised by NSOO over the last 2 years. Including for example, the
Management of Radiation Dose, Nuclear Risk Management, Nuclear Baseline and Staff Rotation,
Learning and Contractor Safety Culture.
3. NSOO Performance – Closure of NSOO Actions
There has continued to be good performance by the line in closing out NSOO recommendations;
Of the 131 actions raised prior to this quarter, 102 are closed. And there are 5 actions
closed in this quarter.
In this quarter we raised 7 new recommendations
4. Benchmarking and Mentoring
NSOO conducted a benchmarking to Nuclear Independent Oversight (NIO) of Sellafield in the UK
this quarter. We learnt from the NIO significantly as they perform a wide range of activities,
including reviews on management leadership and Independent Nuclear Safety Assessment (INSA)
as well as oversight activities similar to what NSOO does.
End
(3) Initiatives to Enhance Self-Assessments
Performance Improvement (PI) field gap analysis performed during FY2016 as
part of the management model project identified self-assessments as an area that is
not functioning effectively. In light of these results, since FY2017 efforts have been
made to formulate self-assessment guidelines as a Phase II initiative for the PI field.
In the process of formulating self-assessment guidelines, nuclear operators in the
United States were referenced under the guidance of overseas experts to compile
procedures that were put to trial use.
These self-assessments of nuclear safety reforms conducted during FY2016 also
revealed the necessity to enhance the skill of evaluators so improvements are being
made in coordination with the management model project.
2.4 Measure 3 ABILITY TO PROPOSE DEFENSE IN DEPTH/CAPABILITY FOR
PROPOSING DEFENSE-IN-DEPTH
2.4.1 Initiatives Related to Nuclear Reform Monitoring Committee Proposals
(1) Leveraging operating experience (OE)11 from within and outside of Japan
♦ Gathering and sharing OE information
One of the lessons learned from the Fukushima Nuclear Accident is that
we must “learn from the failures of others.” Lessons to be learned are
being identified and countermeasures deliberated/implemented under the
premise that something that has occurred somewhere else in the world can
also occur at TEPCO power stations.
Prior to the Fukushima Nuclear Accident, the gathering of operating
experience from within and outside of Japan, and the deliberation of
countermeasures, were put off. Therefore, efforts are being made to
promptly engage in these activities and enable everyone in the Nuclear
Power Vision to leverage this information.
During the first quarter 49 pieces of the new OE information were
gathered and 53 pieces of OE information, that includes information
gathered in the past, were analyzed. We will continue to analyze this
information in a planned manner to ensure that no information waits to
be analyzed for more than three months.
Trends in OE information gathering and analysis
11 Operating Experience
373
139180 196
49
505
199166
191
5376
111
0 0 00
100
200
300
400
500
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FY2013 FY2014 FY2015 FY2016 FY20171Q
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[#]
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No. of pieces of data analyzed (includedpast terms)
No. of pieces of data waiting for more thanthree months for analysis (cumulative)
OE information from prior to
the Fukushima Nuclear
Accident was analyzed
♦ SO
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12Sign13 22
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severe accid
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de to provide
nd the lesson
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articular im
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ay 16, May
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r members t
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to determine whether or not management is “taking a proactive
attitude towards learning about important OE information and not just
getting preoccupied with superficial causes.” During the first quarter,
participation rates were as follows:
Head Office: 22%
Fukushima Daiichi NPS: 29%
Fukushima Daini: 46%
Kashiwazaki-Kariwa: 63%
Participation rate did not increase last fiscal year in part because
planned tasks conflicted with planned study sessions, but this fiscal
year initiatives will commence to incorporate management
improvement programs for managers into OE study sessions and
promote discussions between group managers and members.
OE study session participation rate by managers
(2) Promoting improvements through CAP14
♦Enhancing CAP processes
We aim to make efficient and effective improvements by using CAP to
manage not only nonconformance and OE information, but also
information useful for improving performance that can contribute to
nuclear safety (management observation results, benchmarking results,
external review results, near-this information, etc.), in a unified manner.
At the KK performance improvement meeting (May 16) the role of these
bodies and the activities in which they engage in the United States were
introduced thereby increasing the knowledge that power station
management has about CAP and performance improvements.
14 Corrective Action Program (performance improvement program)
20 23 22
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2.4.2 Other Initiatives
(1) Competitions to Enhance the Ability to Propose Safety Improvement
Measures
TEPCO has been holding Safety Improvement Proposal Competitions so that
personnel may, in addition to conducting multi-faceted reviews from the
perspective of defense-in-depth, acquire the technical ability to propose
cost-effective safety measures and have these proposals put promptly into
practice.
Safety Improvement Proposal Competition PI calculate:
(the number of proposals) x (average assessment) x (number of
outstanding proposals that were implemented within six months).
The results from the 5th competition exceeded objectives (1,500 points
or more) since the beginning of these competitions. However, rather
than be satisfied with this result we plan to further develop and improve
methods for implementing this competition and also deliberate revising
how PIs are calculated. Furthermore, in order to improve motivation to
participate in the competition we will continue to give commendations
to those people who have submitted outstanding proposals and also
those departments that have implemented outstanding proposals that
have been submitted in past competitions.
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have be
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decrease
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water has c
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ed to drain t
venting the f
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g the autom
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l now accum
en monitore
ystem (conce
omatically o
hima Daiich
Accumulated
r to quickly
ed as a resu
e to monitor
ontinued to
stern Japan
this water. I
flooding of
ed in the wa
matic drainag
ma Daiichi
f automatic gr
mulated wat
ed by comp
entrated mo
outputs deta
hi NPS)
water/subdrai
ascertain if
ult of sloshin
r the water l
o flow into th
Earthquake
In order to e
emergency
ll of the pow
ge of ground
NPS)
roundwater dr
ter levels an
paring trend
onitoring sy
ailed water
in water level
f water leve
ng caused b
levels of SF
he Unit 5/6
e and operat
enhance cou
power pane
wer panel ro
dwater that
rainage line
nd subdrain
s to the dail
stem) has n
level data e
monitoring
ls in spent f
y an earthqu
FP skimmer
reactor bui
tors have
untermeasur
els, a draina
oom thereby
flows into
n water level
ly data shee
now been cr
every hour.
fuel pools h
quake, it is n
surge tanks
ilding
res
age
y
the
ls
ets,
reated
have
now
s on
Monito
-
-
the fron
oring of spent
- In order
condens
have be
manage
decision
equipme
correlat
Installation o
- In order
under co
dust turn
in smok
perform
by the s
nt panel of th
t fuel pool wat
r to improve
sation inside
en newly in
temperatur
ns on when
ent refrigera
ion charts. (
of temperature
r to enable o
onditions of
ned up by e
ke-filled roo
ming operatio
elf-breathin
he main con
ter levels in th
e the reliabi
e cable tray
nstalled in c
re and humi
to start up a
ators is now
(Fukushima
e and humidity
operators to
f poor visib
earthquake,
oms so that o
ons and exp
ng apparatu
ntrol room.
he main contro
ility of powe
ys, temperatu
cable tray co
idity levels.
and shut dow
w based upo
a Daini)
y gauges in ca
o remain cal
ility caused
we have sta
operators ca
perience the
s (air tanks)
(Fukushima
ol room (front
er panels by
ure and hum
onnections i
In conjunc
wn air cond
n temperatu
able tray areas
m and perfo
d by smoke
arted implem
an practice
e visual limi
). (Kashiwa
a Daini NPS
t panel)
y preventing
midity gaug
in order to
ction with th
ditioning
ure/humidit
s
orm operati
from a fire
menting tra
actually
itations imp
azaki-Kariw
S)
g
ges
his,
ty
ons
and
ining
posed
wa)
D
w
i
F
d
b
c
(2) Impr
In
not o
issue
impl
I
o
a
i
T
During the
which outst
instances w
Furthermor
during whic
being outsta
could contri
roving perio
order to pr
only engagin
es pointed o
ementing sa
In order to e
organized m
and created
improvemen
The status o
Fukush
A work
solution
Further
identifi
which f
After ri
Operator trai
second quar
tanding prop
where propos
e, before th
ch we plan t
anding durin
ibute to imp
odic safety a
oactively an
ng in impro
out during sa
afety review
effectively i
manner, we
a safety rev
nt) (June 21
of safety rev
hima Daiich
k group was
n to, the con
rmore, coun
ied as poten
focus on liq
isks are iden
ining in smoke
rter, we wil
posals are p
sals are not
he end of the
to re-exami
ng past com
proving nuc
assessment
nd continua
ovements to
afety inspec
ws that exam
implement p
deliberated
view guide
1).
views at eac
hi NPS
s established
ntinuing pro
ntermeasure
ntially havin
quids and ga
ntified a che
e-filled rooms
ll continue t
put into prac
put into pra
e year we w
ne proposal
mpetitions to
clear safety.
processes (
ally improve
respond to
ctions and th
mine underly
power statio
systematic
(periodic sa
ch power sta
d to focus on
oblem of oil
es have been
ng an impac
ases that con
eck is perfo
s
to monitor th
ctice and fol
actice smoo
will hold the
ls that were
o look for pr
safety revie
e nuclear sa
nonconform
hird-party re
ying contrib
on safety re
topic select
afety assess
ation are as
n, and quick
l leaks from
n formulated
t outside sit
ntain radioa
ormed to gua
the process
llow-up in
othly.
7th compet
not selecte
roposals tha
ews)
afety, TEPC
mances and
reviews, but
butors.
eviews in an
tion process
sment proce
follows:
kly find a
m vehicles.
d for risks
te boundari
active mater
arantee that
by
ition
d as
at
O is
d
t also
n
ses
ess
es
rials.
t no
risks have been overlooked, however in light of risk reduction
measures and changes to the environment in conjunction with the
progress of reactor decommissioning, risks that have the potential to
have an impact outside of site boundaries were once again looked
for. Furthermore, deliberations on the unified management of risks
that address not only radioactive material but also hazardous
materials and equipment aging, continue.
Fukushima Daini
In light of the fact that reactors are currently shut down, we are in
the process of formulating a review plan in order to identify areas
for improvement upon identifying latent weaknesses and selecting
topics for FY2017.
Kashiwazaki-Kariwa NPS
During FY2016 the effectiveness of “mechanisms for confirming
the impact that field work has on plant safety functions” was
examined and improvements made to this mechanism. The results
were then reflected in the work guide to confirm the impact on plant
safety design. During this fiscal year we will commence initiatives
to confirm the suitability of checks by managing departments in
accordance with the aforementioned guide, and examine the
effectiveness of this improved mechanism. Furthermore, we will
draft a review plan for identifying areas for improvement upon
selecting topics for FY2017.
2.5 M
2.5.1
Com
(1) In
♦
(Le
Measure 4 E
1 Initiatives
mmittee
nitiatives to
♦ Training to
As of Ju
explain
member
held on
(three ti
Dartmou
corporat
corporat
compare
Professo
Fukushi
corporat
compare
with com
Furtherm
commun
message
eft: Exchangin
ENHANCEM
Related to
o improve ri
o maintain a
une 30, ther
the details o
rs of the loc
topics such
imes in total
uth College
te communi
te communi
ed to what i
or Argenti e
ima Daiichi
te communi
ed to when
mmunicatio
more, we le
nicator and
es.
ng opinions wi
Masuda
MENT OF
Suggestions
isk commun
and improve
e were 42 a
of the revise
cal commun
h as geology
l).
e professor,
ication, was
ications, an
it was like a
exchanged o
i site, and ga
ication staff
the acciden
on and that T
earned from
that commu
Instructio
ith Fukushima
a; Right: Spec
RISK COM
s from the N
nication ski
e the skill o
active risk c
ed applicati
nity, study se
y, seismolog
Paul Argen
s invited to
nd communi
at the time o
opinions wit
ave special
ff (54 partici
nt occurred,
TEPCO’s co
m Prof. Argen
unication st
on by Professo
a Daiichi D &
cial lecture for
MMUNICAT
Nuclear Ref
ll
of risk comm
ommunicat
ion for Kash
essions run
gy, and seism
nti, the world
examine to
ication as a
of the Fukus
th managem
lectures to
ipants). Pro
there have
ommunicati
nti that upp
trategies can
or Argenti
& D Engineerin
r risk commun
TION ACTI
form Monito
municators
ors. In orde
hiwazaki-K
by internal
mic resistan
d’s foremos
what degre
whole, has
shima Nucle
ment, took a
risk commu
f. Argenti co
been drastic
ion is still g
er managem
n be fulfille
ng Company (
nicators)
IVITIES
toring
er to accurat
Kariwa to the
l instructors
nce design.
st authority
ee TEPCO’s
improved
ear Acciden
a tour of the
unicators an
ommented
c improvem
getting bette
ment is the b
ed using sim
(FDEC) presi
tely
e
were
on
s
nt.
e
nd
that
ments
er.
best
mple
dent
♦ Improving the risk communication ability of employees
Simulated risk handling training for corporate communication staff was held
referencing incidents that have occurred at other companies and the response
was assessed by external instructors (32 participants during the first quarter)
We continue to issue “social opinions you should know about” reports to mainly
FDEC employees that serve to share information on concerns voiced to TEPCO
by the local governments of Fukushima Prefecture, the media, and customers,
and issues related to TEPCO that have been brought up on SNS (once a month).
2.5.2 Other Initiatives
(1) Engaging in risk communication
♦ Communicating with the siting community and overseas parties
Activities in the Fukushima area
We continue to offer tours of the Fukushima Daiichi NPS in an
effort to deepen understanding by having people see the power
station with their own eyes (first-quarter: 2,956 people). We will
continue to offer tours with the objective of reaching approximately
20,000 people, double that of 2016, by FY2020.
On April 1, we released the first issue of Hairo Michi, an
informational magazine intended to introduce the people engaged in
reactor decommissioning and convey their feelings, as well as give
updates on the progress of decommissioning at the Fukushima
Daiichi NPS to the people in the community (approximately 10,000
copies issued). The second issue was released on June 10. We plan
to publish issues approximately once every two months and make
efforts to improve the ease of reading of the magazine based upon
opinions from readers.
F
1 FOR
approxi
familie
every m
Monthl
Fukush
both th
continu
them in
At the
and De
Fukush
in regar
and TE
and tha
dialogu
At the f
Ensurin
Power
possibl
contam
from pe
held by
make th
First issue of H
ALL JAPA
imate 6,000
s continues
month we di
ly 1F newsl
hima Daiich
e Kyodo Ne
ue to look fo
n the conten
13th meeting
contaminat
hima Minyu
rds to the in
EPCO that, “
at it “should
ue with thes
first meetin
ng the Safet
Stations, di
e to give ex
minated wate
eople in Fuk
y experts, su
he details ea
Hairo Michi
AN website s
0 workers at
to get appr
istribute app
letter to wor
hi NPS facil
ews Service
or issues of
nts of these m
g of the Fuk
tion Measur
u/Fukushima
nformation b
“the informa
d be more tra
se parties to
ng of FY201
ty of Decom
agrams and
xplanations
er and fuel d
kushima Pre
uch as memb
asier to und
Second is
set up to pro
t the Fukush
roximately 2
proximately
rkers on site
ity. These in
e (April 12)
great conce
media tools
kushima Co
res (May 29
a Minpo new
being conve
ation should
ansparent.”
make impr
17 of the Pre
mmissioning
d photograph
on the statu
debris/fuel r
efecture bre
bers of gov
derstand (M
sue of Hairo M
ovide inform
hima Daiich
28,000 hits p
y 2,000 copi
e and people
nitiatives w
and NHK (
ern to worke
s.
ouncil on De
), represent
wspapers in
eyed by the
d be easier t
We will co
ovements.
efectural Co
g of Fukush
hs were use
us of handlin
removal in l
eak down th
ernment com
ay 17).
Michi
mation to th
hi NPS and
per month.
ies of the
e that tour t
were covered
(June 18). W
ers and incl
ecommissio
tatives of
n attendance
governmen
to understan
ontinue a
ouncil on
hima Nuclea
ed as much
ng of
light of requ
he discussio
mmittees, a
he
their
And,
the
d by
We’ll
lude
oning
e said
nt
nd,”
ar
as
uests
ons
and
Expla
18 Cu
anations given
umulative tota
n at the Prefec
Activities
The nu
quarte
(cumu
322 pe
In ord
Kashi
Hall (t
and to
partici
“Fure
Fureai
wome
total o
given
Kashi
Fukus
semin
A boo
City to
the Ka
resista
May 2
comm
al since of the
ctural Council
Nucl
in the Niiga
umber of pe
er is as follo
ulative total
eople (cumu
der to enable
wazaki-Kar
the power s
ours of the p
ipants: 1,81
ai Talk Salo
i Salon Ki-n
en in the siti
of 4 times, 8
of the safet
wazaki-Kar
shima Nucle
nars given.
oth was set u
o directly ex
ashiwazaki-
ance issue (A
29, TEPCO
munity reside
e Fukushima
l on Ensuring
lear Power Sta
ata Area
eople that to
ows: from N
: 41,96718 p
ulative total
e people to
riwa, Golde
stations PR
power statio
12).
ons” have b
na-se, and E
ing commun
85 participa
ty measures
riwa NPS b
ear Acciden
up inside co
xplain to th
-Kariwa ma
April 22-28
employees
ents in Kash
Nuclear Acc
the Safety of
ations
oured the po
Niigata Prefe
people); Ka
l: 16,012 pe
become mo
en Week eve
facility) fro
on were give
been opened
Energy Hall
nity and hea
nts). At thes
s being impl
ased upon t
nt, opinions
ommercial f
he communi
ain anti-earth
8, number o
have been
hiwazaki Ci
cident
Decommissio
ower station
ecture: 1,42
ashiwazaki-
eople).
ore familiar
ents were he
om May 3 th
en (total num
d at Service
to engage p
ar their opin
se salons, ex
lemented at
the lessons l
are exchang
facilities in K
ty residents
hquake buil
f visitors: 1
visiting the
ity and Kari
oning of Fuku
n during the
23 people
-Kariwa reg
with
eld at Servic
hrough May
mber of tou
Hall, TEPC
primarily
nions (held
xplanations
t the
learned from
ged, and cu
Kashiwazak
s the details
lding seism
44). Also, s
e homes of
iwa Village
shima
e first
gion:
ce
y 7,
ur
CO
a
s are
m the
ultural
ki
of
mic
since
e for
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retirem
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ess conference
sident of the F
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Niigat
establ
ird time sin
tunity to dir
gize for, and
sten to their
the power s
g informatio
Fukushima
dent Ishizak
mmissioning
da hold regu
updates on th
alization He
mmissioning
shima Daiic
dent Ishizak
ment. The n
quarters, Mr
eyed is deter
nsibility to h
30th).
e by Fukushim
Fukushima Re
vitalization H
e regular pre
ta Headquar
ish a new N
nce the accid
rectly engag
d explain, th
r fears and c
station.
on through p
a area, Fuku
ki and Fukus
g Engineeri
ular press c
the status of
eadquarters
g and contam
chi NPS. Fu
ki also made
new presiden
r. Okura, als
rmination to
help Fukush
ma Revitalizat
evitalization H
Headquarters P
ess conferen
rters Presid
Niigata Head
dent. These
ge in dialog
he main ant
concerns as
press confer
ushima Revi
shima Daiic
ing Compan
onferences
f activities a
and explain
minated wa
kushima Re
e remarks in
nt of the Fu
so attended
o continue t
hima recove
ion Headquar
Headquarters, M
President Ishiz
nce held at N
dent Kimura
dquarters in
visits prese
gue with resi
ti-earthquak
well as the
rences by m
italization H
chi Deconta
ny (FDEC)
at the end o
at the Fukus
n the status
ter counterm
evitalization
n conjunctio
ukushima Re
the press co
to fulfill the
er under new
ters President
Mr. Okura; Ri
aki)
Niigata Hea
a explained i
n conjunctio
ent us an
idents,
ke building i
eir opinions
management
Headquarter
amination &
President
of each mon
shima
of progress
measures at
n Headquart
on with his
evitalization
onference a
e organizatio
w managem
t Ishizaki
ight: Fukushim
adquarters,
initiatives to
on with his
issue,
t
rs
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nth to
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dent, Mr. Ki
any while p
oving comm
ht (May 25)
arters presiden
g informatio
g social med
ontinue to u
standing of
ar power.
he current stuclear Powe
he Fukushimat day into totion data fo
s updated on
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prioritizing t
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tion concen
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ough May 6,
esident Ishid
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TEPCO and
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rmation and
this, they e
TEPCO is m
he communi
n with the lo
to also rece
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hanging opini
mation over
ct that Kore
m eight prefe
rters from b
ries on the i
chi and the
ntrations tha
zaki-Kariwa
mentaries (fseas
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erts in comm
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ocal commu
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mation and e
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ectures, inclu
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a Revitaliza
d of Social C
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munications
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a panel disc
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hich nuclea
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engaging co
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tly prohibiti
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erforms (Ju
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r posts: 5)
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resentations
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n Fukushim
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s to continue
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sel (PCV).
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ress of react
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look at equi
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ipment in pl
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♦ Internal Communication
Sharing nuclear power-related information through utilization of
internal media and trainings
In conjunction with his replacement, Nuclear Power & Plant
Siting Division General Manager Anegawa posted a message on
the company’s intranet entitled, “A Look Back at the Nuclear
Safety Reform Plan and a Message to All Employees” on May 18.
GM Anegawa expressed his gratitude for the progress with the
reform plan that has been made over the last four years and urged
everyone to reaffirm the importance of moving steadily forward
with reforms. GM Anegawa’s successor, Nuclear Power & Plant
Siting Division General Manager Makino, will continue in this
role and send out messages to employees in the future.
On June 27, a video of the briefing given to employees on the
nuclear management model, which was created on June 13, was
posted on the company’s intranet.
Videos that explain to employees what type of media coverage
TEPCO is getting and the status of reactor decommissioning work
have also been posted (first quarter: four videos).
Since April, digital signs have been used to air media stories
related to TEPCO and convey information about the siting
community in a timely manner to everyone in the company.
Articles on the status of reactor decommissioning at Fukushima
Daiichi have also been included in the TEPCO Group newsletter.
The third article focused on the work environment improvements
that have been made in conjunction with enlargement of the area
in which workers can wear normal work clothes (issued on May
30).
Risk communicators are giving briefings to group companies. On
June 19, a study session was offered for approximately 30 TEPCO
Fuel & Power managers and site superintendents on Fukushima
Daiichi reactor decommissioning and nuclear preparedness. Going
forward, the details of these study sessions will be further
developed based upon the results of questionnaires distributed to
participants and of the needs of group companies.
2.6 Measure 5 ENHANCEMENT OF POWER STATION AND HEAD OFFICE
EMERGENCY RESPONSE CAPABILITIES
(1) Enhancement of Power Station and Head Office Emergency Response
(Organizational) Capabilities
♦ Implementing Improvements Based upon the Mid- to Long-Term Plan
In April, the Mid- to Long-Term Plan was revised based upon the results of
training implemented last fiscal year and an assessment of basic plan.
Since it has been deemed that Fukushima Daini, Kashiwazaki-Kariwa and the
Head Office have almost achieved the emergency response capability goals of
the basic plan (STEP-1), the decision was made to move to STEP-2. In
accordance with the results of the assessment, the frequency of training shall be
increased based upon a plan that reorganizes environmental conditions, such as
unidentified hazards and initiators that should be predicted.
Since it has been deemed that the Fukushima Daiichi NPS has not achieved the
emergency response objectives of the basic plan (STEP-1), the current
objectives (STEP-1) will remain in place. In accordance with the results of risk
analysis, some parts of the basic plan will be revised and training will be
implemented on newly identified nuclear disaster events and troubles that have
a large social impact.
In order to further improve our emergency response capability, we shall analyze
the gaps between our current state of skill and our objectives as we aim to
become an organization that has the world’s highest level of emergency
response capability.
♦ Training at Power Stations and the Head Office
In order to improve the ability of the organization to engage in an emergency
response in the event of an emergency, individual training and general training
sessions are being repeatedly implemented.
Fukushima Daiichi NPS
Since the number of training scenarios up to now has been insufficient,
during the first quarter a new scenario deliberation team was formed and
comprehensive training scenarios for nuclear disaster risks and troubles that
have a large social impact were created. Starting in the second quarter
general training sessions will be implemented based upon the revised
Mid-to Long-Term Plan.
Fukushima Daini NPS
19 EA
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ushima Dai
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and make fu
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year, we pla
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on
o the
rt
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tion
an to
al
onal
ics,
♦ Introduction of a Human Resource Development Management System
In order to manage the data that will be the foundation for long-term human
resource development we have introduced a new nuclear human resource
development management system for recording the results of education and
training and managing the certifications and skills of individuals. The system
was put into use in April after setting system functions and preparing data.
♦Middle management training
Since FY2015, TEPCO has been providing training for middle managers from
the standpoint that middle-managers need to be aware of, and have the ability to,
thoroughly fulfill their responsibilities jointly with nuclear power leaders while
remaining sufficiently aware of their own responsibilities to nuclear safety.
Group manager training
During the first quarter, a follow-up was performed for the action plan created
by group managers and shift supervisors that took part in training last fiscal
year (total: 178 people). Group manager training for this fiscal year will be held
during the second quarter.
Power station manager training
During the first quarter, follow-ups were performed for the action plans created
by the new department managers (15) and department managers that underwent
second and third-year department manager training (25 managers) last fiscal
year. Department manager training for this fiscal year will be held during the
second quarter just like group manager training.
♦ Status of initiatives to improve in-house technological capability of power stations
(maintenance/operation field, etc.)
Maintenance personnel initiatives
Fukushima Daiichi NPS
We are continually implementing training to develop in-house technical
ability (training on the operation of power supply cars, temporary laying
and connecting of hoses, and training on the use of heavy equipment, etc.)
in order to improve the ability to respond to emergencies
Fuk
In o
repe
gen
repa
to a
to g
thro
will
to f
Drone pilo
kushima Da
order to imp
etitive train
nerator repla
air). In Apri
acquire new
give worker
ough daily t
l continue tr
flexibly deal
oting training
Pow
aini NPS
prove the ab
ning drills w
acement, ➂
il, the memb
w skills. In Ju
s an opportu
training and
raining to d
l with a var
wer supply car
bility to resp
with four tea
➂ temporary
bers of the t
une, we wil
unity to dis
d compare th
develop crea
riety of circu
r operation tra
pond to eme
ams (➀ debr
cable conn
training tea
ll hold a ski
play the ski
heir skills to
ativity and i
umstances.
Debris remo
aining
ergencies w
ris removal/
necting, ④ c
ms were rot
ll competiti
ills they hav
o the skills o
nnovation s
oval, road rep
we are condu
l/road repair
coolant pum
tated in an e
ion (third tim
ve learned
of others. W
so as to be a
pair training
ucting
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effort
me)
We
able
Pump
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In o
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train
wel
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eme
pipe
will
tech
Train
bearing repla
shiwazaki-K
order to imp
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ning such a
lding/cutting
eration, and
ergency resp
e repair, and
l continue to
hnical capab
ning on setting u
acement trainin
Kariwa
prove in-hou
nts from occ
as on assemb
g/grinding,
duct repair.
ponse skills
d using wire
o implemen
bility.
up emergency l
ng
use technolo
curring, we a
bling and di
gas turbine
. We’re also
s by newly c
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nt repetitive
lighting (left: as
Motor r
ogical capab
are conduct
isassemblin
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o making ef
commencin
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e training to
ssembly, right: c
replacement tr
bility and th
ting various
ng scaffoldin
truck/power
fforts to exp
ng training o
bine generat
maintain an
completed asse
raining
hereby prev
s types of
ng,
r supply car
pand the sco
on rope wor
tor trucks. W
nd improve
embly)
vent
r
ope of
rk,
We
Tren
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Operato
Fuk
Uni
train
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ope
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ope
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Fuk
Tra
As
Rope work
er of maintenan
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kushima Da
it 5 and 6 op
ning since F
tified on the
al (80% of th
crease over F
eration of po
er FY2016Q
eration mana
uipment, and
kushima Da
aining on fir
of the end o
0
1,000
2,000
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aiichi NPS
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FY 2014. A
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Q4). The prio
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d spent fuel
aini NPS
re engines an
of June, 25 o
2,629
5
FY2013 FY
participating in
ve engaged
As of the end
of fire engi
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), and 41 op
y cars (fill-r
ority for Un
uch as the u
l common p
and power su
operators h
5,034
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Wire lash
in-house trainin
in fire engi
d of June, 41
nes thereby
field) (fill-r
perators had
rate: 120%,
nit 1-4 opera
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pool equipm
upply cars h
ave been ce
32
8,032
015 FY2016
hing training
ng (Total for 1F
ne and pow
1 operators
y exceeding
ate: 120%,
d been certif
no increase
ators is to a
minated wat
ment, etc.
has commen
ertified on th
8,360
6 FY20171Q
F, 2F, and KK)
wer supply tr
had been
our 34-ope
no increase
fied on the
e or decreas
acquire skill
ater treatmen
nced in FY2
he operation
ruck
erator
e or
e
l in
nt
2014.
n of
fire engines thereby meeting our 25-operator goal (80% of the 31 operators
in the field) (Fill-rate: 100%, increase of five operators from FY2016Q4),
and 31 operators had been certified on the operation of power supply cars
(fill-rate: 124%, increase of four operators over FY2016Q4).
Kashiwazaki-Kariwa
Fire engine and power supply car operation training commenced during
FY2013. As of the end of June, 111 operators have been certified on the
operation of fire engines thereby exceeding our 104-operator goal (80% of
the 130 operators in the field) (Fill-rate: 106%, decrease of five operators
from FY2016Q4), and 120 operators had been certified on the operation of
power supply cars (fill-rate: 115%, increase of seven operators over
FY2016Q4). During power supply car training, in addition to the normal
start-up of power supply cars, training was also implemented on manual
switching in the event of an intake exhaust damper malfunction. Efforts
have also been made to cultivate certified instructors within operator
training teams and as of the end of June, 158 instructors (increase of eight
operators from FY2016Q4) had been trained. Efforts are also being made to
improve the ability of not only maintenance personnel but also operators to
diagnose equipment troubles in conjunction with the increase in the number
of operators that has occurred in order to handle emergencies. These
operators have obtained internal certification on equipment diagnostics and
are now continually sampling data for approximately 140 pieces of rotating
equipment at Unit 7. This has led to an improvement in the abilities of field
workers, such as the acquisition of a wide variety of knowledge related to
equipment and also an increased interest in equipment status.
Initiatives to improve the in-house technical skill of operators (number of skill certifications)
Power Station
Fire Engine Power Supply Truck
Number of skill certifications
(compared with the last quarter)
Fill rate Number of skill certifications
(compared with the last quarter)
Fill rate
Fukushima Daiichi 41 people (0)
120% 41 people (0)
120%
Fukushima Daini 25 people (+5)
100% 31 people (+4)
124%
Kashiwazaki-Kariwa 111 people (-5)
106% 120 people (+7)
115%
(2) Initiatives to Improve the Technological Capability of the Organization
♦ Deliberation of the Establishment of a Nuclear Engineering Center
By integrating the engineering functions of the Head Office and power stations
to create a Nuclear Engineering Center under the direct supervision of the
General Manager of the Nuclear Power & Plant Siting Division, we will be able
to take responsibility for engineering work required to design and maintain
plant functions thereby enabling us to make improvements.
The Main Roles of the Nuclear Engineering Center Design Establish a process for taking responsibility for the management of design by enhancing
the company’s ability to design as well as the ability to manage design work consigned to the companies
Plant Management
Enhance the process for managing plant systems and equipment and improve the reliability of equipment.
Procurement Guarantee a high level of reliability of procured items by ascertaining the skill of suppliers, and establishing a process for receiving and guaranteeing procured items
Nuclear safety Re-examine internal/external hazards and risks based upon the latest knowledge and establish a process for continually improving plant safety
Fuel management
Maximize the amount of energy that can be safely extracted from fuel, and handle the fuel and operate the plant so as not to damage fuel. Ensure that security measures for nuclear fuel material are in place.
♦ Cultivating system engineers
In order to promptly and safely stabilize a reactor when there is an emergency,
personnel need to quickly ascertain the circumstances of the accident and make
accurate decisions. Therefore, engineers are being trained to be proficient in
design, laws and regulations, standards, operation, maintenance and other areas
pertaining to facilities important for safety.
System engineers formulate system monitoring programs, which stipulate
monitoring targets and standards for monitoring system performance
degradation, in order to monitor whether or not primary plant systems are
fulfilling design requirements. These monitoring activities also serve to
identify areas in which reliability can be improved, which lead to overall
improvements.
During the first quarter, 18 systems subject to monitoring were continually
monitored and events that can impact system integrity were identified/assessed.
Through this process it was deemed that one of these systems must be carefully
watched20. Whereas the required flow rate for this system is being maintained,
flow rate can be reduced by the accumulation of sea creatures in the heat
converter heat transfer pipe, therefore it was decided to quickly formulate an
inspection plan while continuing monitoring.
20 Reactor auxiliary cooling seawater system
What we currently have five system engineers (Kashiwazaki-Kariwa). Going
forward, we shall implement education and training to expand the scope of
expertise of existing engineers and maintain their skills, while at the same time
making preparations to open the Nuclear Engineering Center in order to train
personnel and achieve our goal of having five system engineers for each
reactor.
♦ Enhancing configuration management
Configuration management is a process for maintaining the safety of the plant
and ensuring that power station equipment has been manufactured, installed,
and is being operated as designed. Deliberations continue on constructing a
systematic process for maintaining and managing a state in which design
requirements, actual equipment, and equipment schematics all match.
During the first quarter, a draft of the Design Guideline Creation and
Management Guide (tentative title) was written based upon the original draft of
the design guidelines written in FY2016 and the best practices of operators in
the United States. Since there are three types of design guidelines for ①
individual systems, ② individual structures/architectural structures, and ③
common specifications, the design guidelines will be written upon stipulating
the scope of application and priorities. A draft of the ③ common specifications
is being written using Core/Fuel Design as a pilot model.
In the course of deliberating configuration management processes, the
applicability of the processes is being examined by applying past cases to the
management procedures that were created last fiscal year. Furthermore, the
development of this system to operate these processes is underway and will be
introduced in conjunction with establishment of the Nuclear Engineering
Center.
♦ Handling revisions to the inspection system
In the United States, the U.S. Nuclear Regulatory Commission's (NRC's)
regulatory framework for reactor oversight (ROP21) is a risk-informed, tiered
approach to assessing seven cornerstones (CS22) that comprise reactor safety,
radiation safety, and safeguards, and three cross-cutting areas deeply related to
the cultivation of safety culture. If the results of monitoring and inspections
performed based upon this process reveal decreases in the performance of a
nuclear operator, additional inspections are conducted in accordance with
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2.8 KPI/PI Performance and Assessment
2.8.1 KPI/PI Performance
(1) KPI Performance (FY2017Q1)
KPI Target Performance Notes
Safety awareness
Safety awareness KPI (nuclear power leaders) 70 points 62.1 points
Safety awareness KPI (entire Nuclear Power Division)
70 points 60.7 points
Technological capability
Technological capability KPI (in times of normalcy) 100 points To be assessed
at the end of the
fiscal year
Technological capability KPI (in times of emergency)
100 points 97 points
Ability to promote dialogue Ability to promote dialogue KPI (internal) 70 points 65.3 points
Ability to promote dialogue KPI (external) Increase over last fiscal year
To be assessed
at the end of the
fiscal yea
(2) PI Performance (FY2017Q1)
PI Target Performance Notes
Safety awareness Nuclear power leaders
<Safety-1> Rate of implementation of retrospection leveraging the traits
100% 81.4%
<Safety-2> Number of times emails have been sent by nuclear power leaders in order to share information
At least once a week
11 times in 12
weeks (91.7%)
<Safety-3> number of times nuclear power leaders participate in preparedness training
At least twice a year
3 times
(46.2%)
<Safety-4> Number of times nuclear power leaders go into the field (to engage in management observation or exchange opinions with workers)
At least twice a month
1.8
times/month
<Safety-5> Number of benchmarked issues for which nuclear power leaders are responsible for putting into practice that have been put into practice
At least four a year
-
To be
measured from
Q2
Entire Nuclear Power Division
<Safety-6> Percentage of groups that discuss the results of trait retrospection
100% 85.5%
<Safety-7> percentage of messages from nuclear power leaders that are read immediately
At least 80% 75.1%
<Safety-8> Number of times managers engage in management observation
Target values to be
set by the
1F: 0.84 times
2F: 4.03 times
No. of times per
person per month
PI Target Performance Notes department KK: 3.96
times
Head Office:
0.20 times
<Safety-9> Good MO rate (Percentage of reports that include things that PICO has pointed out as being good MO from MO results)
At least 50%
-
To be
measured from
Q2
<Safety-10> Percentage of corrective measures completed before deadline
100%
1F: 37%
2F: 33%
KK: 61%
Head Office:
60%
<Safety-11> Number of recurring GII or higher nonconformances
0
1F: 5
2F: 0
KK: 0
Head Office: 0
Numbers for 2F
are as of the end
of May
Technological capability During times of normalcy
<Engineering-1> Number of skilled workers trained in the Operations Department
At least 100% of
the number required
To be assessed
at the end of
the fiscal year
<Engineering-2> Number of skilled workers trained in the Maintenance Department
At least 100% of
the number required
To be assessed
at the end of
the fiscal year
<Engineering-3> Number of skilled workers trained in the Engineering Department
At least 100% of
the number required
To be assessed
at the end of
the fiscal year
<Engineering-4> Number of skilled workers trained in the Radiation and Chemistry Department
At least 100% of
the number required
To be assessed
at the end of
the fiscal year
<Engineering-5> Number of skilled workers trained in the Fuel Department
At least 100% of
the number required
To be assessed
at the end of
the fiscal year
<Engineering-6> Number of skilled workers trained in the Safety Department
At least 100% of
the number required
To be assessed
at the end of
the fiscal year
<Engineering-7> Number of personnel that have external certifications such as Licensed Reactor Engineer (LRE), Class 1 Chief Radiation Handler, Engineer (Nuclear and Radiation Dept.), etc.
Training objective
achievement rate:
100%
To be assessed
at the end of
the fiscal year
<Engineering-8> Participation rate in important OE training
At least 60% of
managers
1F: 29%
2F: 46%
KK: 63%
Head Office:
22%
<Engineering-9> View rate of newly arrived OE information
At least 75% 73%
During times of emergency
<Engineering-10> Number of emergency response personnel certified in-house on the operation of fire engines, power supply cars, cable connections, radiation surveys, wheel loaders, and unic trucks
At least 120% of
the necessary
number at each
power station
120%*
PI Target Performance Notes
<Engineering-11> Percentage of “A” assessments given during emergency response training
At least 80%
75.5% 1F: 72.2%
(7/11)
2F: 76.9% (10/13)
KK: 76.9%
(10/13)
Ability to promote dialogue Internal
<Dialogue-1> Percentage of employees that feel that messages from nuclear power leaders are “helpful”
At least 50% 21.6%
<Dialogue-2> Response rate to questionnaire on the information conveyed by nuclear power leaders
At least 70% 39.7%
Previously 35%
<Dialogue-3> Degree of understanding of information conveyed by nuclear power leaders
At least 2.5 points 2.4 points Previously 2.4
points
External
<Dialogue-4> Quality/quantity of disseminated information, questionnaire results
Increase over last
fiscal year
To be assessed
by the end of
the fiscal year
<Dialogue-5> Stance on, awareness of, public relations and public hearing
Increase over last
fiscal year
To be assessed
by the end of
the fiscal year
*Required numbers are being reexamined in light of the discrepancies between 1F, 2F
and KK, and are therefore not included.
2.8.2 KPI/PI Assessment
Starting this fiscal year, nuclear safety reform KPI and PI values will be set and
measured using the management indicators for each field of the Nuclear Power Division
management model. Going forward, the trends of each KPI and PI will be monitored.
During the assessment KPIs and PIs to date, KPIs and PIs have not only been assessed
as being high or low, but also:
- If they are high (target achieved), then our aim is to make them even higher.
- If they are low (target not achieved), then we analyze the causes and make
improvements.
- In both cases, we also assess whether or not the KPI or PI is effective in measuring the
degree to which nuclear safety reforms have been brought to fruition.
In addition, more effective improvement activities will be implemented, and KPIs and
PIs reassessed and target values increased as necessary.
3. Status of Initiatives to Handle the Main Anti-Earthquake Problem
As result of TEPCO’s failure to give adequate explanations and prepare sufficient
inspection documents concerning the seismic resistance of the main anti-earthquake
building during the course of New Regulatory Requirement compliance inspections for
Kashiwazaki-Kariwa Units 6/7, we not only threw the inspections into a state of
confusion but also caused concern amongst the residents of Niigata Prefecture and
society as a whole.
TEPCO has investigated the causes of this problem, formulated countermeasures, and
given reports to Niigata Prefecture (April 19) and at the 451st inspection meeting
(March 9). The following is an update on the status23 of each countermeasure.
3.1 Accelerating Nuclear Safety Reforms
Enhancing corporate governance
In order to enhance corporate governance, we created a management model in
June that includes a management model diagram and also gives the objectives,
important success factors, and the achievement level indicators for each
structural element. This management model will be further leveraged in
departments by using it to revise work plans.
A fundamentals pamphlet has been created and distributed to all employees of
the Nuclear Power Division. This fundamentals pamphlet is being referenced
when engaging in management observation and giving instructions to
subordinates.
Human resource development
We currently have five system engineers that continually monitor 18 systems.
Going forward, we shall implement education and training to expand the scope
of expertise of existing engineers and maintain their skills, while at the same
time making preparations to open the Nuclear Engineering Center in order to
train personnel and achieve our goal of having five system engineers for each
reactor.
23 Out of the countermeasures reported on during the 451st inspection meeting, those countermeasures with immediate impact (establishment of a regulatory response improvement team, assignment of project supervisors, etc.) have already been completed.
Establishment of the Nuclear Engineering Center
We are planning the establishment of a Nuclear Engineering Center.
Deliberations on the development of existing training programs and the
creation of new programs has commenced with a focus on plant engineering
and design engineering.
Strengthening configuration management
Drafting of the Design Guideline Creation and Management Guide (tentative
title) was written based upon the original draft of the design guidelines (①
individual systems, ② individual structures/architectural structures, and ③
common specifications) written in FY2016 and the best practices of operators
in the United States.
In the course of deliberating configuration management processes, the
applicability of the management procedures created in FY2016 is being
examined and development of this system to operate these processes that will
be introduced in conjunction with establishment of the Nuclear Engineering
Center, is underway.
Establishment of internal communications teams
Internal communications teams have been formed that the Head Office and at
each power station. Each department team has shared information on the
reasons for and the intentions of establishing these teams, such as the main
anti-earthquake building problem, and has discussed problems faced by each
department related to internal communication. As a result, common issues,
such as the fact that information that traverses different departments and
positions is not being accurately shared, and that employees have a tendency to
not be concerned with work underway outside of their department, were
identified and improvements are being made.
3.2 Improvement Measures to Respond to the Concerns Expressed by Residents of
Niigata Prefecture
[Improvement measure ①] Sharing of information between Head Office inspection
handling departments and communications departments (utilization of the newly
established inspection plan review meetings)
Since March 17, communications departments have participated in the daily
inspection plan review meetings and inspection information sharing meetings
held by the Head Office inspection handling departments in an ongoing effort
to share information without delay.
[Improvement measure ②] Implementation of Public Hearing Activities at the Niigata
Headquarters by Nuclear Power Division Executives
In order to directly hear the concerns of the local community in regards to
nuclear power and restore faith in TEPCO, since July, Nuclear Power Division
managers have started participating in initiatives to visit homes in Kashiwazaki
City and Kariwa Village, give explanations at communications booths set up at
various locations within Niigata Prefecture, visit residents to hear their
opinions, and participate in town hall meetings.
[Improvement measure ③] Reporting on communications initiatives related to
Kashiwazaki-Kariwa at town hall meetings
Reports on communications initiatives at the Kashiwazaki-Kariwa NPS are
given and opinions elicited at the town hall meetings held on the first
Wednesday of each month. At the town hall meeting held on July 5, a report
was given on improvements made to materials that explain the seismic
resistance of the Kashiwazaki-Kariwa main anti-earthquake building, and
earthquake faults under the Kashiwazaki-Kariwa site to the residence of
Niigata Prefecture, local government officials and opinion holders.
[Improvement measure ④] Further Improvements to the Details of Explanations given
by TEPCO corporate communications (explaining events that have a social impact in
easy-to-understand and timely manner)
Parties handling inspections and corporate communications representatives
participate in daily inspection plan review meetings and inspection information
sharing meetings in order to identify those issues that may have a large social
impact and examine how to explain these issues in easy-to-understand and
timely manner.
In addition to giving a report to the mayor of Niigata Prefecture on our regrets
and the improvement measures that have been formulated in regards to the
Kashiwazaki-Kariwa main anti-earthquake building seismic resistance problem,
we also ran a formal apology in the newspaper (April 21) and issued a second
edition of the TEPCO News (newsletter distributed along with newspapers)
(April 28) in order to quickly notify the residents of Niigata Prefecture.
TEPCO has posted its opinion to the issues pointed out by the
Kashiwazaki-Kariwa NPS Active Fault Problem Review Committee
concerning earthquake faults under the Kashiwazaki-Kariwa site on the
TEPCO website24 (May 29). In conjunction with this, a special edition of the
TEPCO News was also issued (June 20) in order to convey this information to
as many Niigata Prefecture residents as possible.
[Improvement measure ⑤] Continual awareness reforms using information disclosure
and communications problems that TEPCO has faced (for the Head Office Nuclear
Power Division, Niigata Division and Kashiwazaki-Kariwa)
Awareness reform training that uses incidents that have occurred at TEPCO in
the past related to information disclosure and communications, such as the
main anti-earthquake building problem, the drainage channel K problem, and
the core meltdown issue, is being planned. This training is planned to start
during the second quarter.
[Improvement measure ⑥] Enhancing communication between Niigata Prefecture,
Kashiwazaki City and Kariwa Village (giving status updates on inspections as
necessary/suitable)
In light of improvement measures ① and ④, weekly information sharing
meetings are being held between the Niigata headquarters and
Kashiwazaki-Kariwa in order to identify important issues and examine the
details of explanations given to the local government. Reports on the status
inspections are also given to the governments of the siting communities.
Furthermore, the Niigata Headquarters is also making preparations to develop a
framework for disclosing information in a proactive and unified manner.
24 http://www.tepco.co.jp/niigata/images/SIRYO_201705_01.pdf
Conclusion
During the first quarter of FY2017, we have seen the effects of the operation of
subdrains and the land-side impermeable wall (ice wall) at Fukushima Daiichi in the
form of a reduction in the amount of contaminated water generated to approximately 1/4
what it was. We have also moved forward with the removal of contaminants from, and
purification of, highly concentrated contaminated water that has accumulated in the Unit
1-4 turbine building thereby helping to reduce risks. On June 16, we were finally able to
submit the revised application to modify our installation permit in order to comply with
the New Regulatory Requirements for Kashiwazaki-Kariwa NPS Units 6 and 7, which
we submitted in September 2013, after the application was reviewed at more than 140
inspection meetings. Continuing forward the revised application will be subject to
review and we will continue to carefully complete all procedures required.
On July 10, members of our new management team, such as Chairman Kawamura,
President Kobayakawa and Nuclear Power & Plant Siting Division General Manager
Makino, exchanged opinions with the Nuclear Regulation Authority. The Chairman and
members of the committee commented that, “we have not seen any independent
decision-making or prioritization when it comes to reducing risks associated with the
decommissioning of the Fukushima Daiichi NPS.” Going forward we will continue to
provide written responses to the committee, and receive guidance through field
inspections and opinion exchanges. We will also make sure to give careful explanations
to the residents of the siting community in effort to regain trust and ensure that our
conviction to prioritize the local community does not falter.
Furthermore, in regards to the Nuclear Safety Reform Plan (Management Aspects),
TEPCO will continue to prioritize the strengthening of governance throughout the entire
organization and the development of human resources. It is also indispensable that we
work together with contractors to cultivate safety culture in order to further improve the
safety of our nuclear power stations. We will continue to develop communication by
reaching out (corporate visits) to and exchanging opinions with contractors in light of
the sheer diversity of contracting companies and contract workers.
Through our determination to, “Keep the Fukushima Nuclear Accident firmly in
mind; we should be safer today than we were yesterday, and safer tomorrow than
today; we call for nuclear power plant operations that keeps creating unparalleled
safety,” TEPCO will continue to advance nuclear safety reforms while subjecting our
organization to objective assessments by the Nuclear Reform Monitoring Committee.
We are more than happy to hear any comments or opinions you may have about these
reforms. Visit our website25 for more information.
End of Document
25 https://www4.tepco.co.jp/ep/support/voice/form.html