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Management of Decommissioning Projects NIS / November 2012.

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Presentation on theme: "Management of Decommissioning Projects NIS / November 2012."— Presentation transcript:

1 Management of Decommissioning Projects NIS / November 2012

2 Economic Decommissioning Economic Decommissioning considering Laws and Rules considering Laws and Rules without Impact on Environment without Impact on Environment and Life and Life Economic Decommissioning Economic Decommissioning considering Laws and Rules considering Laws and Rules without Impact on Environment without Impact on Environment and Life and Life Decommissioning Management NIS November 2012

3 Decommissioning Management What is Economy in Decommissioning ? NIS November 2012

4 Effects on Decommissioning NIS November 2012 Decommissioning Management

5 Conditions Plant Type History of the Plant Space for new Installations on Site Plant Staff available External Companies and Experts available Waste Management Facilities available Waste Storage Facilities available Final Repository Conditions Conditions Plant Type History of the Plant Space for new Installations on Site Plant Staff available External Companies and Experts available Waste Management Facilities available Waste Storage Facilities available Final Repository Conditions Decommissioning Management NIS November 2012

6 Decisions to be Made Decommissioning Variant Kind of License Procedure Several Aspects, i.e.: Use of External Companies Full System Decontamination Waste Management on Site Sequence of Dismantling Work Termination of the Project / State of the Plant Decisions to be Made Decommissioning Variant Kind of License Procedure Several Aspects, i.e.: Use of External Companies Full System Decontamination Waste Management on Site Sequence of Dismantling Work Termination of the Project / State of the Plant Decommissioning Management NIS November 2012

7 What is the Way to What is the Way to Manage such Decommissioning Projects What is the Way to What is the Way to Manage such Decommissioning Projects Decommissioning Management NIS November 2012

8 Decommissioning Management NIS November 2012 Initial Planning and Cost Calculation Initial Planning and Cost Calculation Shutdown Strategic Planning Detailed Budget Strategic Planning Detailed Budget Decommissioning Liabilities Decommissioning Liabilities Preliminary Decommissioning Plan ProjectPlan

9 Decommissioning Management Tax and Commercial Laws obligate the accumulation of Financial Liabilities At the beginning of a dismantling project a basic Initial Planning and Cost Calculation is performed During dismantling all needed measures are planned in detail for Budget Definition purposes The Strategic Planning supports decision making processes Three main issues given depending on the actual status of a plant NIS November 2012

10 What is necessary for a (Preliminary) Decommissioning Plan What is necessary for a (Preliminary) Decommissioning Plan Decommissioning Management NIS November 2012

11 Analysis of Masses Scheduling Work Breakdown Structure Calculation of Costs Decommissioning Management NIS November 2012

12 The Work Breakdown Structure is one of the central item of the Project – What are the needs for planning and cost calculation, real cost management, project controlling, time scheduling – How is the WBS organised Decommissioning Management NIS November 2012 Work Breakdown Structure

13 Project Breakdown Time- and Cost Schedule Bids Phases Tasks Steps Calculation Aims Milestones Budgets Cost Calculation Decommissioning Management NIS November 2012

14 Controlling Budgets Real Values on Cost and Time Real Values on Cost and Time Time Schedule Controlling Decommissioning Management NIS November 2012

15 Decommissioning Management NIS November 2012 Project Structure Main Database Inventory of Masses and Radioactivity Strategic Planning, Calculation P3e / MS-Project Time Schedule Database Database for Documentation of Radwaste Internal Control System Database Internal Orders Inventory Documentation of Radwaste SAP Database Registration of Actual Costs Account vs. Corporate Group and Public Overall Time Schedule Reporting Procedure, Budget Controlling Ressources

16 Decommissioning Management NIS November 2012

17 Work Orders Localities Cost Types Organisation Work Oriented Project Structure Plan Hierarchy Level 6 Hierarchy Level 5 1 2 Level 3 Hierarchy Level 4 SAP Development of the Project Structure Work Breakdown Structure: Organisation of the project in a suitable structure Main Structure Parallel, additional Structures Decommissioning Management NIS November 2012

18 Decommissioning Management Evaluated by Decommissioning Tasks Total () 1- Operation 2- Dismantling 3- Waste Management Evaluated by Decommissioning PhasesTotal () 1- Post Operational Phase 2- Dismantling Phase 3- Conventional Demolition Work Breakdown Structure Total ()

19 Mass Analysis NIS November 2012 Decommissioning Management Basis for the Planning Work Capacity Calculation Dose Rates, Activity Balances Cost Calculation Documentation

20 Decommissioning Management NIS November 2012 Secondary Mass Mass of the Consumables needed for the Decommissioning Work, e.g. tools, clothes, liquids Secondary Mass Mass of the Consumables needed for the Decommissioning Work, e.g. tools, clothes, liquids Tertiary Mass Mass of the additional Equipment, shielding, cranes, steel-girder constructions Tertiary Mass Mass of the additional Equipment, shielding, cranes, steel-girder constructions Primary Mass Existing Mass of the Components and the Equipment in the Beginning of the Decommissioning Work Primary Mass Existing Mass of the Components and the Equipment in the Beginning of the Decommissioning Work

21 Primary Mass Controlled Area Supervised Area Other Area All Components and Facilities in the Controlled Area All Components and Facilities in the Controlled Area All Facilities especially Installed for the Decommissioning Work All Facilities especially Installed for the Decommissioning Work Concrete Rubble from the Nuclear Dismantling Work Concrete Rubble from the Nuclear Dismantling Work Concrete Rubble from the Decontamination of Building Structures Concrete Rubble from the Decontamination of Building Structures All Components and Facilities in the Supervised Area All Components and Facilities in the Supervised Area All Facilities especially Installed for the Decommissioning Work All Facilities especially Installed for the Decommissioning Work Concrete Rubble from the Dismantling of Buildings in the Supervised Area Concrete Rubble from the Dismantling of Buildings in the Supervised Area All Components and Facilities in the Other Area All Components and Facilities in the Other Area All Components and Facilities Without Contact to Radioactivity All Components and Facilities Without Contact to Radioactivity Out side Facilities, Streets, Fences Out side Facilities, Streets, Fences Decommissioning Management NIS November 2012

22 Decommissioning Management NIS November 2012

23 Decommissioning Management NIS November 2012

24 (*) All Material from Buildings during the nuclear Dismantling Containment Biolocal Shild1.120 Mg Concrete (*)9.530 Mg Reactor Pool4.000 Mg Fuel Storage Pool4.400 Mg Shielding Material 670 Mg Containment Biolocal Shild1.120 Mg Concrete (*)9.530 Mg Reactor Pool4.000 Mg Fuel Storage Pool4.400 Mg Shielding Material 670 Mg Reactorbuilding Concrete(*) 500 Mg Shielding Material 300 Mg Reactorbuilding Concrete(*) 500 Mg Shielding Material 300 Mg Auxiliary Building Concrete(*) 3.800 Mg Shielding Material 500 Mg Auxiliary Building Concrete(*) 3.800 Mg Shielding Material 500 Mg + Concrete Surfaces 530 Mg + Concrete Surfaces 440 Mg Supervised Area + Concrete Surfaces 150 Mg Building Decontamination Decommissioning Management NIS November 2012

25 Final Shut Down Activation In-Situ decontamination Removal of Spent Fuel and Operational Waste 3 x 10 19 Bq 2,6 x 10 17 Bq Inner Contamination Outer Contamination 1 x 10 13 Bq 1 x 10 9 Bq Decay Decontamination UB: 8 x 10 16 Bq SB: 1,5 x 10 16 Bq UB: 3 x 10 10 Bq SB: 1 x 10 9 Bq UB: 1 x 10 8 Bq SB: 2 x 10 7 Bq ID = Immediate Dismantling => ca. 5 years decayLD = Later Dismantling => ca. 35 years decay Radioactive Inventory Decommissioning Management NIS November 2012

26 Decommissioning Management

27 NIS November 2012 Radioactive Waste Radioactive Waste Release Reuse Release Reuse Non Radioactive Material Non Radioactive Material Radioactive Material Radioactive Material No Approval Unrestricted Restricted Repository Conventional Recycling Combustion Nuclear Recycling Decommissioning Management

28 NIS November 2012

29 Komponente 60% uneingeschränkte Freigabe 40% Endlager Entsorgungsweg 30% Stahlkies 30% HD-Wasser Verfahren 20% Typ VI Stahlblech 20% Mosaik Verpackung 60% Freigabe 40% + 10% Endlager Verbleib Sekundärabfall 10% Decommissioning Management NIS November 2012

30 Decommissioning Management NIS November 2012

31 Decommissioning Management NIS November 2012

32 Decommissioning Management NIS November 2012

33 Decommissioning Management NIS November 2012

34 Decommissioning Management Sequence of Work / Time Schedule End of Operation Post Operational Phase Dismantling Conventional Dismantling End of Nuclear Island Decommissioning License Planning & Licensing Preparation Dismantling Fuel Removal

35 Decommissioning Management NIS November 2012 Immediate Dismantling Shut Down Decom License Operation Removal of Fuels Dismantling non controlled area Preparation Nuclear Dismantling Dismantling controlled area 2 - 4 Years 3 - 5 Years 12 - 16 Years Shut Down Systems

36 Decommissioning Management NIS November 2012 Deferred Dismantling Shut Down Shut Down Systems License SE Start Safe Enclosure Operation Safe Enclosure Period Removal of Fuels Dismantling non controlled area 2 - 4 Years 3 - 5 Years 6 - 8 Years Decommissioning of Systems Preparation Safe Enclosure

37 Decommissioning Management NIS November 2012

38 Decommissioning Management NIS November 2012

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40 Decommissioning Management

41 Planning / Licensing Planning / Licensing Project Tasks Project Tasks Operational Tasks Operational Tasks Waste Management Waste Management Studies, Concepts Planning Work Expertises Licensees Studies, Concepts Planning Work Expertises Licensees Fixed Costs Operational Cost Time Related Calculation Fixed Costs Operational Cost Time Related Calculation Mass Related Calculation Mass Related Calculation External Companies Bids / Contracts Interfaces Staff Consumables Tools Equipment Time Schedule External Companies Bids / Contracts Interfaces Staff Consumables Tools Equipment Time Schedule Special Features in the Calculation Work Special Features in the Calculation Work Task Decommissioning Management NIS November 2012 Cost Calculation

42 Staff Costs Consumables Equipment costs External Companies Cost Categories Repository and Packages Transport External costs Special Costs Manually Time related Mass related Work related Calculation Types Decommissioning Management NIS November 2012

43 Calculation of Personnel Costs man-hours Calculation using parameters and specific factors Calculation using parameters and specific factors Free Calculation Internal personnel External personnel man-hours hourly rate local radiation level Radiation exposure Personnel costs Decommissioning Management NIS November 2012

44 Decommissioning Management Specific Factor for calculation Calculation of Personnel Costs using Specific Factors Related parameter man-hours Mass Surface Plant Inventory

45 Decommissioning Management NIS November 2012 Basic specific factor Basic specific factor Surcharge for… breathing protection need for shielding local situation, space limitations use of scaffolds, lifting devices others Actual factor for calculation Calculation of Personnel Costs using Specific Factors

46 Dec. Steel Bullets 5,82 /kg - loose, outer Contamination, open Surface HP-Water Jet 3,77 /kg - loose, outer Contamination, open Surface Chemical 11,10 /kg - inner Contamination, defined Material Electropolishing 13,90 /kg - fixed, inner Contamination, conductive material Melting 7,30 /kg - Metall Risk – is the Treatment working well ? Decommissioning Management NIS November 2012

47 Decommissioning Management NIS November 2012

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49 Decommissioning Management NIS November 2012

50 Decommissioning Management NIS November 2012

51 Personnel Requirements Staff on Site Local Contractors Foreign Contractors Decommissioning Management NIS November 2012

52 Cost Comparison Decommissioning Management NIS November 2012

53 Decommissioning Management Impacts on Cost Estimation Poor data basis Approach for technical process masses, radiological inventory, contamination level (compo- nents and buil- dings) Idealised processes for cost estimations vs. real processes Duration of licensing process Duration and cost, license delay Staff qualification and labour cost Distribution factors and waste disposal Major part of total project, exact estimation of numbers of workers, different source of employee salary and hourly rates Theoretical mass distribution vs. real mass flow, simplified approach, forecast of quantity of radioactive waste

54 NIS November 2012 Decommissioning Management Change and growth of project scope Changing strategies due to operators decision; revised processes and technical approaches Change of regulatory standards and laws Unforeseen problems Availability of a final repository Changing boundary conditions may enforce a strategy change. Safety related changes often require increasing safety efforts (e.g. radiation protection) Changing boundary conditions may enforce a strategy change. Safety related changes often require increasing safety efforts (e.g. radiation protection) Impossible to take into account; can be compensated by contingency or risk surcharge No final repository for medium and high-level radioactive waste and thus unknown repository fees; acceptance specifications for containers important for waste conditioning and packaging Impacts on Cost Estimation

55 NIS November 2012 Decommissioning Management How We Try to Avoid Cost Overruns Yearly reviews of decommissioning cost estimations Yearly reviews of decommissioning cost estimations Integration of experiences in calculation models Integration of experiences in calculation models Improvements and enhancements of the Software

56 Decommissioning Management NIS November 2012 Starting with the beginning of the operation Linear collection during operation of NPP 25 years collection period Adaption to new conditions and price levels every year Fund 1 st Year 2 nd Year 3 rd Year 1/25 Current portion of the up-to-date total decommissioning cost Surcharge to the provisions of previous years due to cost escalation Funding Methodology Germany

57 Detailed planning Up-to-date Data Data update Return after Condension Acquisition of actual data up-to-date Data updating commercial data Actual Data Analysis Strategic Planning / Mid-Term Planning Periodically updated Data Updating Calculation Frame TargetsPlanning Values Project control Periodically updated Data Updating Calculation Return after Analysis Initial Planning singular action basic data Financial Provisions annual action 1 2 3 Description next pages 4 Decommissioning Management NIS November 2012 Project in Progress

58 Objective Status Cost Objective Status Performance Subjective Status Projectleader Real - Progress w = weighting x k + x l + x p = 100 % w = x k (%)w = x l (%) w = x p (%) Decommissioning Management NIS November 2012 Controlling Process

59 Element 01.01Element 01.02Element 01.03 Relevance 30% Relevance 10% Relevance 60% Element 02.01Element 02.02 Relevance 70% Relevance 30% Element 01Element 02 Relevance 75% Relevance 25% Total Project Project RELEVANCE Decommissioning Management NIS November 2012

60 Element 01.01Element 01.02Element 01.03 Relevance 30% Relevance 10% Relevance 60% Element 02.01Element 02.02 Relevance 70% Relevance 30% Element 01 Element 02 Total Project Progress 15% Progress 44% Progress 3% Progress 90% Progress 100% 5%4,4%1,8% Progress 11,2% 63%30% Progress 93% + ++ 11,2% 0% + 11,2% Project Progress Relevance 100% Relevance 0% Decommissioning Management NIS November 2012


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