Decommissioning cost estimation for a multiple reactor site with interdependent plants: case study using a new management tool and top-down approach

Authors

  • Deiglys Borges Monteiro Federal University of ABC https://orcid.org/0000-0003-2071-0010
  • João Manoel Lousada Moreira Federal University of ABC
  • José Rubens Maiorino Federal University of ABC

DOI:

https://doi.org/10.15392/bjrs.v8i3A.1404

Keywords:

top-down, multiple reactor, benchmark, cost estimation, budget

Abstract

In the end of operational life, a nuclear power plant should be decommissioned to release its site for a new purpose. The decommissioning cost estimation is part of the decommissioning plan, which also include the decommissioning strategy definition. The cost estimation is performed by management tools, most of them according the bottom-up approach. However, this approach usually requires large quantities of data and detailed knowledge of the site conditions and the project phases, which are often unknown in the project beginning, requiring the adoption of several assumptions. Otherwise, the top-down approach requires less data or assumptions, and the project details is known as it became mature. Due to this, the top-down approach is a better approach for cost estimation during planning phase than the bottom-up. Despite it, most part of management tools found in literature to cost estimation are structured according the bottom-up approach. To suppress this lack, recently a new management tool was developed according the top-down approach, being able to estimate the decommissioning cost of nuclear power plants for budget/bid purposes. This work aims to present the cost estimation to decommissioning a multiple reactor power site with similar characteristics of the Brazilian ones, which would be used as benchmark. The results demonstrated that the interdependencies among the plants are important and affects significantly the cost to decommissioning each plant. This work is part of a research that is under course in which several strategies alternatives would be evaluated.

 

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Author Biographies

Deiglys Borges Monteiro, Federal University of ABC

Programa de pós-graduação em Energia (PPGENE)/ Universidade Federal do ABC/Centro de Engenharia e Ciências Sociais Aplicadas (CECS)/Pró-reitoria de Pesquisa (PROPES)

João Manoel Lousada Moreira, Federal University of ABC

Programa de pós-graduação em Energia (PPGENE)/ Universidade Federal do ABC/Centro de Engenharia e Ciências Sociais Aplicadas (CECS)

José Rubens Maiorino, Federal University of ABC

Programa de pós-graduação em Energia (PPGENE)/ Universidade Federal do ABC/Centro de Engenharia e Ciências Sociais Aplicadas (CECS)

References

MONTEIRO, D.B.; MOREIRA, J.M.L.; MAIORINO, J.R.; A new management tool and mathematical model for decommissioning cost estimation of multiple reactors site. Progress in Nuclear Energy, v.114, p.61-83, 2019.

MONTEIRO, D.B.; Decommissioning of Brazilian nuclear centrals: proposal of a management tool for decommissioning costing. PhD Thesis. UFABC,

Santo André – SP, 2017.

MONTEIRO, D.B.; MOREIRA, João M.L.; MAIORINO, José R.; Decommissioning strategy and schedule for a multiple reactor nuclear power plant site. In: Proceedings of INAC 2015, ABEN, XIX Encontro Nacional de Física de Reatores - ENFIR. São Paulo, Brasil, Oct. 4-9, 2015.

MONTEIRO, D.B.; MOREIRA, João M.L.; MAIORINO, José R.; Brazilian nuclear power plants decommissioning plan based on multiple reactor decommissioning approach. In: Proceedings of INAC 2015, ABEN, XIX Encontro Nacional de Física de Reatores - ENFIR. São Paulo, Brasil, Oct. 4-9, 2015.

MONTEIRO, D.B.; MOREIRA, J.M.L.; MAIORINO, J.R.; Metodologia e equações para estimar o custo de descomissionamento de plantas nucleares brasileiras; In: Proccedings of IX Congresso Brasileiro de Planejamento Energético, Florianópolis, Brazil, Ago. 25-27, 2014.

OECD/NEA – Organization for Economic Cooperation and Development/ Nuclear Energy Agency. International Structure for Decommissioning Costing of Nuclear Installations, OECD/NEA, 2012.

PMI – Project Management Institute. PMBook Guide Chapter 1: Introduction. 3rd edition, Norma ANSI/PMI 99-001-2004, ISBN: 1-930699-74-3 (Brochure-Português-Brasil), 3 ed., p. 3-18, PMI, Pennsylvania, EUA, (2004).

FRAJNDLICH, R.; Considerations about the decommissioning of the IEA-R1 research reactor and the future of its facilities after shutdown. PhD Thesis. Instituto de Pesquisas Energéticas e Nucleares, IPEN, Autarquia associada à Universidade de São Paulo, USP, São Paulo, 2014.

US-NRC – US Nuclear Regulatory Commission. Changes in Decommissioning Waste Disposal

Costs at Low-Level Waste Burial Facilities. NRC U.S.NRC, NUREG/CR-1307, Rev.15, 2012.

ZACHAR, M.; DANIŠKA, V.; NEČAS, V.; Improved analytical methodology for calculation assessment of material parameters in nuclear installation decommissioning process. Progress in Nuclear Energy, v.53, p.463-470, 2011.

US-NRC – US Nuclear Regulatory Commission. Estimating Pressurized Water Reactor Decommissioning Costs, A User’s Manual for the PWR Cost Estimating Computer Program (CECP) Software, Draft Report for Comment. Division of Regulatory Applications, U.S.NRC, NUREG/CR-6054 PNL-8497, NRC, 1993.

PINHO, B.E.; An initial plan proposal for the transition period after pemanent shutdown of Angra 1 nuclear power plant until the safe storage. Master Thesis. Rio de Janeiro – RJ. COPPE – UFRJ, 2018.

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Published

2021-02-09

How to Cite

Monteiro, D. B., Moreira, J. M. L., & Maiorino, J. R. (2021). Decommissioning cost estimation for a multiple reactor site with interdependent plants: case study using a new management tool and top-down approach. Brazilian Journal of Radiation Sciences, 8(3A (Suppl.). https://doi.org/10.15392/bjrs.v8i3A.1404

Issue

Section

XXI Meeting on Nuclear Reactor Physics and Thermal Hydraulics (XXI ENFIR) and VI ENIN