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Tidsskrift
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Cost Estimation for Decommissioning : An International Overview of Cost Elements, Estimation Practices and Reporting Requirements (engelsk)
Del af Radioactive waste management
Detaljer
Beskrivelse
Abstract: This report is based on a study carried out by the NEA Decommissioning Cost Estimation Group (DCEG) on decommissioning cost elements, estimation practices and reporting requirements. Its findings indicate that cost methodologies need to be updated continuously using cost data from actual decommissioning projects and hence, systematic approaches need to be implemented to collect these data. The study also concludes that changes in project scope may have the greatest impact on project costs. Such changes must therefore be identified immediately and incorporated into the estimate. Finally, the report notes that more needs to be done to facilitate the comparison of estimates, for example by providing a reporting template for national estimates.
Indhold
Seneste udgave, e-bogForeword Key findings 1. Introduction 2. Legal and administrative requirements -Legal basis and regulated parties -Requirements for costs to be included -Boundary assumptions and conditions -Dealing with cost reducation and uncertainty 3. Main cost drivers for decommissioning -Types of costs -Categories of cost drivers -Ranking of key points 4. National cost estimation practices -Cost methodologies -Quality control provisions -Why cost estimates may be wrong 5. Overall conclusions and general recommendations -Overall conclusions -General reflections on good practice 6. Bibliography Appendix A. Legal and administrative requirements -Legal basis -Guidelines for operator descretion - A matter of regulatory philosophy -Requirements for costs to be included -Boundary assumptions and conditions -Uncertainties and contingencies -References Appendix B. Defining cost elements and cost drivers - Analysis of survey results -Definition of cost types -Main cost drivers: analysis of survey results Appendix C. Review of national approaches to cost estimation -Methodology -Quality control provisions -Where estimates go wrong - Review of experience
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