“When Operating Experience Knocks, Who is Answering…. Why?...and How?”

“When Operating Experience Knocks,
Who is Answering…. Why?...and How?”
Byron Station (IL)
LaSalle County
Station (IL)
Braidwood Station (IL)
Dresden Nuclear
Power Station (IL)
Three Mile Island Station (PA)
Quad Cities Nuclear
Power Station (IL)
Clinton Power Station (IL)
Peach Bottom Atomic
Power Station (PA)
Limerick Generating
Station (PA)
Oyster Creek Nuclear
Generating Station (NJ)
Approach
• Primary goal is to fully implement lessons learned from significant events
to prevent reoccurrence
• Effective OE program demonstrates a strong culture of ownership where
OE is valued as integral in daily operational performance success
• Pace and scope of OE is rapidly increasing
− NRC, INPO, vendors, and industry groups
− Legacy OE including changes in knowledge, expectations, and
aggregate learnings
• Increasing the return on investment
− Greatest benefit is derived from tools and services that allow
improved performance without significant administrative efforts
1
Reactor Engineering and Fuel Management
• Communication, awareness, and reactivity management
has improved through use of newly created website
− Access to operation and
maintenance newsletters
stressing applicable OE
− Advanced search utility that
performs OE searches both
internally and externally
• Condition reports
• Procedures
− INPO “Must Know” OE highlights
by subject area
• Original document links
Outage Operating Experience Books
• Summary of applicable industry
outage OE
− Utilized in pre-job briefs, outage and
job planning, safety meetings,
contract coordination
• Previous Exelon outages events
− OSHA events, clearance and
tagging errors, LERs, configuration
errors, contamination events, and
more
− Link to condition reports
TABLE of CONTENTS
Outage Prompt Investigations Listings
Station Configuration Control Events
INPO Event Report – Fall 2010 Outage Summary
INPO Topical Report 10-72
Clearance and Tagging
Confined Space Work
Contractor Oversight
Crane Activities
Diving Activities
Electrical Safety and Shocks
Emergency Power Reliability
Excavating or Digging
FME
Fuel Handling
Hand Safety
Human Performance
Lifting and Rigging
Loss of Offsite Power
Loss Of Shutdown Cooling
Measurement & Test Equipment (M&TE)
Production Risk Activity
Radiation Worker Events
Reactor Cavity
Reactor Shutdown
Reactor Startup
Scaffold Installation and Disassembly
Shutdown Safety
Steam Generator Replacement
• Industry OE eliminated potential
manufacturer cleanliness shortfalls that
could have impacted startup chemistry
− Team reviewed OE with an industry peer from a plant
that had received steam generators from the same
assembly plant
− Developed cleaning plan to reduce contamination
before shipment
− Reviewed OE from previous replacements and
scheduled contingency chemistry holds to allow
secondary water cleanup
− None of the holds were needed
2
Outage Safety
• INPO event reports identified a
noteworthy industry outage trend
regarding hand injuries
• Exelon utilized this OE to launch
an outage “hand injury prevention”
campaign geared towards
increasing employee awareness
and focus
• Campaign results indicate a nearly
50% reduction in outage rate of
OSHA recordable hand injuries
0.77
0.4
• This focus has also helped Exelon
drive to a fleet “best ever” total
OSHA recordable value in 2012
2 0 11
2 0 12
Hand OSHA / Outage
Human Performance
INPO Human Performance Event Rate
0.014
9
0.012
8
0.01
Monthly HU Resets
7
6
0.008
5
0.006
4
3
0.004
2
18-Month Rate (per 10,000 hours worked)
10
0.002
1
Dec-12
Jul-12
Oct-12
Nov-12
Jun-12
Sep-12
Aug-12
Jan-12
Apr-12
Mar-12
Feb-12
May-12
Dec-11
Jul-11
Oct-11
Nov-11
Sep-11
Jun-11
Monthly Station Clock Resets (INPO)
Aug-11
Jan-11
Apr-11
Mar-11
Feb-11
May-11
Jul-10
Oct-10
Dec-10
Nov-10
Jun-10
Sep-10
Aug-10
Jan-10
Apr-10
May-10
Oct-09
Mar-10
Feb-10
Dec-09
Nov-09
Sep-09
0
Aug-09
0
18-Month Rate
• Use of internal/external OE drove efforts that resulted in a
fleet HU event rate reduction of 66%
− Implemented standardized place-keeping per INPO 09-004
− Created site HU committees to engage employees in sharing OE
− Established weekly OE cross-functional review of station data and trends
− Pre-job brief improvements based upon fleet lessons learned
• Updated infrequently performed activity briefs to include SOER lessons learned
• Implemented “graded approach” based on complexity and risk per INPO 06-002
− Continued use of fleet OE as foundations for SOER 10-2 case studies
Partnership in Sharing
• Exelon recognizes the
importance of taking a
leadership role in sharing
significant OE with the industry
to facilitate recognition and
lessons learned
• The industry impact of the
vulnerability to an undetected
loss of a single phase of off-site
power highlights the
importance of partnering with
stakeholders
Unit 2
Failed
Insulator
Stack
Collapsed
C-Phase Bus
Fallen
Insulators
3
Questions?
4