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Technical-economical study of Czech NPPs Long Term Operation P. Kadečka, J. Žďárek. 2. 11. 2006. Performance of TE study should enable to define Dukovany NPP life extension optimum and to prepare bases for follow up realization program. - PowerPoint PPT Presentation
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Nuclear Research Institute Řež plc
Nuclear Research Institute Řež plc
Technical-economical study of Czech NPPs Long Term Operation
P. Kadečka, J. Žďárek
2. 11. 2006
2
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Main Goal and NRI Role
• Performance of TE study should enable to define Dukovany NPP life extension optimum and to prepare bases for follow up realization program.
• NRI makes this study in very close cooperation with Dukovany NPP (technical and basic economical part) and CEZ HQ (general economical part).
3
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Main Goal and NRI Role
Work started at 2004 has two main parts:• Technical, based on:
• IAEA-TECDOC-1309, Cost drivers for the assessment of nuclear power plant life extension
• Economical, based on:• IAEA matrix for NPP economic assessment• CEZ requirements
Two methodologies for both parts of the study were prepared.
4
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
IAEA TECDOC Cost Drivers (1/2)
1. Safety upgrades to meet regulatory requirements
2. Other non-safety and conventional system upgrades
3. Management programs and processes4. Environmental impact assessment5. Maintaining expertise6. Public acceptance7. Radioactive waste & spent fuel management
5
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
IAEA TECDOC Cost Drivers (1/2)
8. Decommissioning
9. Licensing process
10.Operating and maintenance (O&M) review
11.Operating spares and consumables
12.Fuel cycle improvements
13.Overall risk assessment
6
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Cost of ensuring SC LTO (1/3)
•One of the most important and compliceted element of the study is calculation of cost necessary to ensure NPP‘s structures or components (SC) LTO.
• It is part of drivers 1 and 2.
7
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Cost of ensuring SC LTO (2/3)
Work is done in following steps and results obtained are screened and comented by Dukovany NPP staff:
• Selection of structures or components with high cost of replacement or refurbishment• Determination of term when measure to ensure selected
SC LTO will be necessary to adopt (assuming current service and maintenance of SC)
8
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Cost of ensuring SC LTO (3/3)
• Design of different possible measures (replacement, refurbishment, ageing management, design change, …) and their application optimum schedule which can be used for selected SC (with necessary measures application to enable NPP‘s LTO)
•Determination of designed measures costs
9
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Management and tools (1/2)
• Work managed by division 300 NRI is done in cooperation with:
• Division 200 (Nuclear Safety)• Division 500 (Energoproject Prague, Czech Design
Authority)• Škoda Research (NRI daughter)• UAM Brno (NRI daughter)• ECC (External company, Economic expertise)
10
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Management and tools (2/2)
• All results are saved to Microsoft Access database called EDULTO• Database is continually developed in accordance with
requirements from work flow• Database is compatible with Dukovany SC register
(Passport, MNT Graph)• In the future the database will be part of EDU PLIM
database called INFOZ (structure is also NRI product)• Except already mentioned sources also Knowledge
Management System DART , with Dukovany NPP DB is used
11
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Main form of Dukovany LTO database with component selection
12
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Form of Dukovany LTO database, containing second step evaluation results
13
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Form of Dukovany LTO database, Design of
possible measures (1/3)
14
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Form of Dukovany LTO database, Design of
possible measures (2/3)
15
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Form of Dukovany LTO database, Design of
possible measures (3/3)
16
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
OPTIMUD INFOZ
17
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
DART EDU CZ, DB Knowledge Management System
18
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Other Cost Drivers Evaluation (1/2)
For other cost drivers, analyses are done and if necessary measures are also designed. For instance:
• Safety upgrades to meet regulatory requirements are evaluated on the basis of PSR done by Dukovany LBB
19
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Other Cost Drivers Evaluation (2/2)
• Management programs and processes are evaluated taking into account results of IAEA SALTO project in which CEZ, NRI and Czech Regulatory Body (SÚJB) are very active
• Licensing process is prepared and evaluated on the base of QA program for LTO. QA program is prepared by Dukovany NPP staff and discussed and agreed with SÚJB.
20
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Economical Part of Study (1/2)
•Economical part preparation is done by external subcontractor of NRI
• Final calculation will be done by CEZ experts using their tools, procedures and confidential strategies•All will be done in accordance with Czech Rep. laws and CEZ procedures
21
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Economical Part of Study (2/2)
•NRI finish its work by determination of price for accepted measures
•Also the possible time schedule for measures realization and their interactions are taking into account. For this reason a tool called Big Map of Actions designed by Dukovany staff will be used and updated (new computer application).
22
Nuclear Research Institute Řež plc.
Division of Integrity and Technical Engineering
5. Int. Conf. OKB Gidropress, 2007
Conclusion
• TE study will be finished in 2007
•On base of CEZ management decision, a preparation of detail realization program is supposed.