Experiences and lessons learned: Jose Cabrera NPP

Decommissioning Project

Supporting European Expertise in Nuclear

Decommissioning

23rd January 2018

José Cabrera NPP Dismantling Project

General Information - Enresa

State OWNED Company - RD 1984

Duties:

• Management of radioactive wastes

• Decommissioning of Nuclear

Installations

Framework:

Responsible for managing funds and liabilities,

in accordance with a periodical modification of

the ‘General Radioactive Waste Plan’ approved

by the Government

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José Cabrera NPP Dismantling Project

DECOMMISSIONIG PROJECTS IN

SPAIN

Madrid. PIMIC (CIEMAT)

-Duration: 2006-2017

-Reactor type: Research Reactor &

reprocessing facilities

-Status: Site Restoration

Madrid

Guadalajara

Tarragona

Tarragona. VANDELLOS 1 NPP

-Duration: 1998-2003

-Reactor type: GCR

-E. Power: 460 MWe

-Status: On dormancy

Guadalajara. JOSE CABRERA NPP

(ZORITA)

-Duration: 2010-2019

-Reactor type: PWR

-E. Power: 160 MWe

-Status: Dismantling

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DECOMMISSIONING PROJECTS

José Cabrera NPP Dismantling Project

Jose Cabrera NPP: First complete dismantling in Spain

• PWR (160 MW)

• 37 years in Operation.

• 2006: definitive shutdown.

• 2006-2009: Transition period.

• 2010: Start of execution of

decommissioning project .

José Cabrera NPP Dismantling Project

DECOMMISSIONING SCHEDULE

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10 YEARS PROGRAMME

Activities 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

PREPARATORY

ACTIVITIES

System Discharge

System modifications

Auxiliary Facilities

CONVENTIONAL

DISMANTLING

RADIOLOGICAL

DISMANTLING

Large components

Other components

DECONTAMINATION AND

DEMOLITION

MATERIAL MANAGEMENT

SITE RESTORATION

80% progress

José Cabrera NPP Dismantling Project

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REACTOR INTERNALS-VESSEL SEGMENTATION

Underwater segmentation with mechanical tools

José Cabrera NPP Dismantling Project

ISFSI JC NPP: Internals

4 HI-SAFE casks

CABRIL: Internals: 8 CE-2b

Vessel: 21 CE-2b

PRIMARY WASTES REPOSITORIES

STRATEGIES FOR WASTE MANAGEMENT

José Cabrera NPP Dismantling Project

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Lessons learned

1. Effective for Cutting complex Geometry

2. Slower than others, BUT:

1. Easy Implementation

2. Low Rad Operational Impact

3. Minimization of Secondary Waste

3. Characterization of rad waste

4. Preparatory & Final Works

1. Visibility

2. Cavities conditioning

3. Final cleaning

Internals & RPV – Segmentation Works

José Cabrera NPP Dismantling Project

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REMOVAL OF ACTIVATED CONCRETE

José Cabrera NPP Dismantling Project

SURFACE CHARACTERIZATION

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José Cabrera NPP Dismantling Project

RADIOACTIVE WASTE MANAGEMENT: DECONTAMINATION

WORKSHOP

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José Cabrera NPP Dismantling Project

SOIL WASHING PLANT

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Location

José Cabrera NPP Dismantling Project

CHARACTERIZATION EQUIPMENT FOR SITE RELEASE

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José Cabrera NPP Dismantling Project

• Dismantling of Primary Circuit Components.

• Segmentation technologies

• Management of activated elements

• Adaption of proven technologies to

decommissioning requirements.

• Thermal cutting / Cold cutting

• Robotics / Drones

• Material Management.

• Optimization / waste volume reduction

• Site Remediation.

• Characterization of the site

• Soil treatments

FINAL THOUGHTS

José Cabrera NPP Dismantling Project

Strategies for Waste Management (large components)

Refurbishment of former Turbine Hall as Decommissioning Auxiliary Building

• Conditioning of rad. waste from segmentation activities.

• Temporary storage of disposal units.

José Cabrera NPP Dismantling Project

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DECONTAMINATION OF BUILDINGS AND REMOVAL OF EMBEDDED ELEMENTS