Spanish Scenario for Spent Fuel Management

Transcription

1 ENSA (Grupo SEPI) Spanish Scenario for Spent Fuel Management INMM Spent Fuel Management Seminar XXIX Arlington, VA January 14, 2014 David Garrido Design & Licensing Manager. Spent Fuel Cask Div. Equipos Nucleares, S.A.

2 Outline Nuclear Energy in Spain Overview of Stakeholders on SF Management The Actual Spent Fuel Scenario Spent Fuel Strategy for the near Future What s next? Conclusions

3 Nuclear Energy in Spain NPP location in Spain: 10 Nuclear Power Reactors: 8 reactors in operation in 6 sites 2 NPP shut down: in D&D LILW + VLLW disposal facility (El Cabril) Jose Cabrera Vandellós I

4 Nuclear Energy in Spain Installed power 2013 Energy demand coverage ,7% 10,9% 7,5% 19,4% 6,5% 1,0% 24,8% 22,2% Combined cycle Wind Hydropower Carbon Nuclear Cogeneration and other Solar Thermic renewable 21,0% 14,6% 12,4% 14,4% 4,9% Combined cycle 2,0% Wind 9,6% Hydropower Carbon Nuclear Cogeneration and other 21,1% Solar Thermic renewable Nuclear Power 7,7% of installed power (7.8 GWe) in ,0% of energy production in 2013 Source: REE (Red Eléctrica Española)

5 Nuclear Energy in Spain NPP Type MW Start Authorization Extension Approval Status Almaraz 1 PWR Operating Almaraz 2 PWR Operating Ascó 1 PWR Operating Ascó 2 PWR Operating Cofrentes BWR Operating José Cabrera PWR Decommissioning Santa María de Garoña BWR Stand-by Trillo 1 PWR Operating Vandellós 1 GCR Dismantled/Latency Vandellós 2 PWR Operating

6 Nuclear Energy in Spain CN Almaraz 1 & 2 CN Ascó 1 & 2 CN Cofrentes PWR, Mw. ( ) PWR, Mw. ( ) BWR, Mw. (1984) CN Santa Mª de Garoña CN Trillo CN Vandellós BWR, 465 Mw. (1971) PWR, Mw. (1988) PWR, Mw. (1987)

7 Overview of Stakeholders on SF Management Ministry of Industry, Energy and Tourism (MINETUR) Radioactive Waste, Decommissioning and SNF management Policy Grants Licenses of Nuclear Installations and Packages Nuclear Safety Council (CSN) Independent from the Government Nuclear safety and Radiological Protection Regulation and Guidance Evaluation and Reporting previously to Licenses Binding Decisions Inspection and Enforcement ENRESA Management of SF and Radioactive Waste Nuclear Installations Decommissioning Management of the Waste Funds NPP/Utilities Operate on site Storage Deliver the SF and Waste packages in accordance to agreed conditions Pay the costs through fees on nuclear energy generation

8 The Actual Spent Fuel Scenario SNF Inventory 4,600 tu SF in storage Most of them in SF pools 3 ISFSI under operation (Dry Storage) Trillo NPP José Cabrera NPP Ascó NPP 1 ISFSI under licensing & construction (Dry Storage) Sta. Mª de Garoña NPP Estimated Total Amount of SF considering 40 years of NPP operation 20,000 Fuel Elements (6,700 tu)

9 The Actual Spent Fuel Scenario ATC or Centralized Interim Storage Facility.Comming soon Villar de Cañas

10 The Actual Spent Fuel Scenario Trillo NPP, the first plant in Spain requiring Dry Storage due to spent fuel pool dimensions. Dry Storage system: ENSA-DPT metal cask Multiwall SS + lead + SS Double lid bolted with two metallic O-rings in each lid Interlid pressure monitoring system Capacity up to 21 PWR Siemens KWU 16x16 high burnup Fuels (<49 GWd/tU) ENSA proprietary design. ENRESA licensee. ISFSI: concrete building. Capacity for at least 80 metal casks

11 The Actual Spent Fuel Scenario José Cabrera NPP, the second plant requiring Dry Storage due to shut down. Dry Storage system: HI-STORM 100Z Concrete Modular System (Vertical) Welded Canister Capacity up to 32 PWR HIPAR and/or LOLOPAR 14x14 Fuels HOLTEC Int. design. ENRESA licensee. ISFSI: concrete pad (open). Capacity 12 SF casks.

12 The Actual Spent Fuel Scenario Ascó NPP, the third plant requiring Dry Storage due to spent fuel pool dimensions. Dry Storage system: HI-STORM 100 Concrete Modular System (Vertical) Welded Canister Capacity up to 32 PWR Westinghouse 17x17 Fuels HOLTEC Int. design. ENRESA licensee. ISFSI: 2 concrete pads (open). Capacity 16 casks each.

13 The Actual Spent Fuel Scenario Sta. Mª de Garoña NPP, will be the 4 th plant requiring Dry Storage due to spent fuel pool dimensions. Dry Storage system: ENSA-ENUN 52B Monolithic C.S forging Double lid bolted with two metallic O-rings in each lid Interlid pressure monitoring system Capacity up to 52 BWR Fuels ENSA new design. ENSA licensee. License currently under CSN evaluation: License approval expected within the next few months ISFSI: 2 concrete pads (open). Capacity 16 casks each. First loading campaign expected by mid Uncertainties due to NPP situation.

14 Spent Fuel Strategy for the near Future Different options presented and evaluated: Deep Geological Disposal preferred but needs ample social and technical development In the meantime, the ATC, Almacén Temporal Centralizado or Centralized Interim Storage Facility. ATC Siting Process 6th General Radioactive Waste Plan 2011 ATC Basic Design Concept is being developed in parallel ATC is a priority Parliament unanimously supported Inter-Ministerial Commission is set up to lead the site selection process Site selection approved Technical Report of the final candidates sites Site selection starts establishing the minimum design criteria

15 Spent Fuel Strategy for the near Future ATC Technology: Vault system for SF and HLW (Vitrified) and a concrete building for medium waste Selected Technology Criteria Design Multiple Barrier confinement Cooling by natural draft Low dose Cost Compact and modular Low operational costs Strategy Independence among management stages Long life design Reversibility Flexibility ATC Nuclear facility

16 Spent Fuel Strategy for the near Future ATC Conceptual Design

17 Spent Fuel Strategy for the near Future International References of Vault Technology

18 Spent Fuel Strategy for the near Future Issues to consider with this strategy: Low and High Burnup Spent Fuel Transport from the NPP to the ATC. Routing Infrastructure. Detailed study was performed. Limitations were found in the railroad infrastructure. Road transportation is the feasible solution. Concerns related to Spent Fuel o Fuel integrity after several years of storage prior transportation and during Normal Condition of Transport. Maximum storage estimated time before first shipment: 20 years (low burnup fuel) and 10 years (high burnup fuel) o For canisterized systems, open the canister is required (hot dry cell, undesirable job) to transfer the fuel into the ATC standard canisters.

19 What s next????? ATC is a temporary solution (design for 100 years but estimated to operate 60 year per the 6th GRWP) R&D is required to provide solutions to future alternatives Deep Geological Disposal?? Reprocessing and recycling?? Others???

20 Conclusions Most of the SF is actually stored in the spent fuel pools Dry storage was required due to several reasons. Four ISFSI s were built to quickly and temporary cover the needs, but.is the H/MLW storage problems for the next 60 years resolved? The ATC will do..at least for the next years, so it is a priority for the SF and H/MLW management It gain time on trends and technological and social advances, before decision making Site selection and approval process was a hard task but finally a true Time frame for operation..best estimation, 2017 In the meantime, working hard for future better solutions

21 Thanks for your attention!

22 ENSA (Grupo SEPI) Oficina Central / Head Office: José Ortega y Gasset 20-5º Madrid, Spain Phone: Fax: commercial@ensa.es Instalaciones / Facility: Avda. Juan Carlos I, Maliaño, Cantabria, Spain Phone: Fax: commercial@ensa.es