1. KRŠKO NUCLEAR POWER PLANT, Slovenia
Continuous Monitoring of Nuclear Safety Culture and Human Performance
Đurđica Šmit Mlinarič,

2. Krško NPP after more than 30 Years of Operation
Owners: GEN Energija 50% HEP 50%
Operator: Krško Nuclear Power Plant
NSSS Supplier: Westinghouse
Reactor Type: PWR
Construction Permit: 1975
Commercial Operation: 1983
Operating Licence: 60 years
No. of Employees: ~617
Gross Plant Output: 727 MW

3. Evaluation of safety culture
Three safety culture self-assessments were performed at NEK.
Methods used: observation, interview and questionnaire.
Last self-assessment was performed in 2013:
- 662 employees engaged voluntarily,
- correlation was made between results of last two self-assessments for general NEK results and additionally for each department-level,
- results were presented to all employees at all levels in organization.
When comparing the results of the last two self-assessments, none of the 70 questions showed a negative trend!
Next self assessment will be performed in 2018.

4. Continuous Monitoring of Nuclear Safety Culture and Human Performance
SC and HU representatives are named in each department,
Different SC and HU inputs,
Trending of SC and HU,
Action plans for improvement,
Implementation of actions.

5. Continuous Monitoring of Nuclear Safety Culture and Human Performance Model
NEI „Fostering Strong Nuclear Safety Culture“, 2014

6. Categorization of inputs
SAFETY CULTURE TRAITS
Personal Accountability
Questioning Attitude
Safety Communication
Leadership Accountability
Decision-Making
Respectful Work Environment
Continuous Learning
Problem Identification and Resolution
Environment for Raising Concerns
Work Processes
HUMAN PERFORMANCE TOOLS
Self-checking
Pre-job briefing
Effective communication
Peer checking
Questioning Attitude
Use and adherence to procedures
Use of operating experience
Observation and coaching
Independent verification
Post-job briefing

7. Struggles we‘ve met VS. Lessions learned (so far)
How to be a representative and NOT a „spie“?!
How to get valuable inputs and sustain trust?
Corrective Action Program as an main source of inputs.
Are ALL inputs equally valuable?
It is after all additional work…
Informal leaders are best representatives,
Communicate!
Encourage team members to contribute with their own ideas of what input is,
We are all one Team working for the same goal,
Help them organize:
- reminder for monthly reports,
- categorization of inputs,
- guide don‘t tell

8. Thank you for attention! www.nek.si A: Vrbina 12, 8270 KrškoM: