Lifetime Management

Capability Statement

April 2013

Contents

Introducing IDOM Group 05

IDOM Nuclear Services 06

Ageing Management of Nuclear Power Plant Structures, Systems and Components 08

Our team 13

Fields of Specialisation 14

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Introducing IDOM Group

Petrochemical Plant, Venezuela

Sustainable City Development,Cancún (Mexico)

Technical Assistance And Provision of Supervision Services for “New

Amasya landfill” (Turkey)

Urban Renewal of the Historic and Business District of

Ho Chi Minh City, Vietnam

EBRD project for “Arad Urban Transport” (Romania)

IDOM is an independent international company that delivers professional integrated services in Engineering, Architecture and Consultancy. The company is a leader in Spain and is quickly gaining a worldwide reputation. Since its beginnings in 1957, the company has assisted over 10,000 clients, participating in over 30,000 projects across five continents.

The evolution of the market and new requirements of our clients mean that IDOM is on a path of continuous growth in the scope of the services being offered as well as in the training of personnel. At present, around 2,400 people carry out their professional activities in the Company´s offices and projects all around the world. The company is employee owned with 100% of the capital of IDOM distributed between staff currently working in the firm. In addition to offices throughout Spain, the company is established in London (UK), Derby (UK), Kent (UK), Cardiff (UK), Brussels (Belgium), Lisbon (Portugal), Bucharest (Romania), Warsaw (Poland), Casablanca (Morocco), Mexico City (Mexico), Medellin (Colombia), Minneapolis and Richmond (United States), Calgary (Canada), Delhi (India), Abu Dhabi (UAE), Wroclaw (Poland), Sao Paulo (Brazil), Santiago (Chile) and Tripoli (Libya).

The following are the main areas of activity of the company:

>> Consulting & Systems

>> Industry & Energy

>> Architecture & Building

>> Infrastructure

>> Telecommunications

>> Environment

>> Advanced Analysis

>> Turnkey Services

>> Nuclear Services

In 1995, IDOM obtained accreditation of its quality management system to ISO-9001, awarded by LLOYD’S REGISTER QUALITY ASSURANCE. Subsequently, in April 2000 IDOM obtained accreditation of its Environmental Management System to ISO 14001. More recently, IDOM has successfully gained accreditation to OHSAS 18001 of its Health and Safety Management System.

In recent years, IDOM has expanded the range of its services, both technically and geographically.

The company’s size and diversification have not influenced the fundamental goals with which the company was founded; providing the best possible service to each and every client. This has been the company’s driving force for its growth, and is the philosophy and motivation for future development.

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IDOM Nuclear Services

IDOM´s experience in the nuclear sector has its origins in the early nuclear generation projects in Spain in the late 70s and 80s, participating in the construction of Ascó and Vandellós nuclear power plants (NPP) and our relationship with these and other projects has continued throughout the lives of these facilities.

Working on these projects has enabled us to acquire technical abilities and experience in the fields of engineering technical support, industrial architecture, civil, mechanical, and structural engineering design and advanced analysis.

Our participation in Energhia Consortium, providing engineering services to Fusion for Energy and the ITER organisation in the ITER fusion research project marks a milestone in the development of the nuclear services provided by IDOM.

The spectrum of activities of the business unit covers a wide range of projects from minor component or subsystems analysis to major design projects for new facilities.

IDOM can offer nuclear engineering services working both as an integrated resource within the client’s engineering team on site and as an external resource from the various IDOM offices.

Sustainability and innovation are valued aspects of IDOM´s operations and together with the knowledge acquired from our projects, we look forward to putting these aspects together to assist our clients on the path to a future with lower carbon emissions.

IDOM is an approved supplier of AREVA, Almaraz and Trillo NPP, Ascó and Vandellós II NPP, Cofrentes NPP, S.M. Garoña NPP and Enresa. IDOM is an active member of European, Spanish and British nuclear trade associations, Nuclear Forum and the Nuclear Industry Association (NIA).

>>> Services

The services provided by IDOM within the nuclear business unit may be grouped into the following disciplines:

>> Site Evaluation

>> Planning, Technical Assistance and Safety

>> Design Engineering

>> Industrial Architecture

>> Project Management and Construction

>> Turnkey Projects

>> Consulting Services

We highlight below selected current tasks related to the safety of the plants.

Vandellós II EJ System

Access Control Building,Cofrentes

ITER Complex, France

Cofrentes Nuclear Power Plant

Ascó I proposed cooling tower

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>>> Safety Systems

Various Safety Related Systems projects have been carried out, from geological and technological studies and site evaluation against extreme natural events, to the development of basic and detailed engineering, equipment purchasing, construction, installation and commissioning of new safety systems of the plants.

IDOM is also currently carrying out the evaluation of fire protection systems, based on the new Nuclear Safety Council (CSN) IS-30 Safety Instruction, as well as the analysis of emergency HVAC systems and adequacy to the new regulations.

>>> Stress Tests

IDOM is conducting technical analyses to support the Western European Nuclear Regulators Association (WENRA) stress tests, including safety checks and risk analyses. Our tasks include assessment of the plants’ defences against earthquakes, floods and other external events beyond the design basis of the plant, among other aspects.

IDOM has participated in stress test related services for all the Spanish plants: Vandellós, Ascó, Cofrentes, Almaraz, Trillo and Garoña.

>>> Lifetime Management

Commencing in 2003 IDOM developed the necessary studies and evaluations for the Garoña NPP operating licence extension. Since 2006, IDOM has also offered technical support in various areas including planning, development, implementation and monitoring to the Ascó, Almaraz, Vandellós II and Trillo NPPs’ lifetime management plans. Our capabilities

in this area are more fully presented below.

Almaraz II Nuclear Power Plant

Ultimate Heat Sink design and build, Vandellós II

BWR licence extension,Santa María de Garoña

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Ageing Management of Nuclear Power Plant Structures, Systems and Components

>>> Background

The design life of currently operating nuclear power plants was normally calculated in economic terms, based on returns of investment. This life is generally in the region of 30 to 40 years. However, most of the plants can safely be run for decades longer than originally planned, as has been shown by intensive research programs, especially in the US. This is advantageous both environmentally and economically, since power can continue to be generated from a plant which has already off-set its construction cost, improving profitability and maintaining the low carbon performance of nuclear power generation.

In this context, plant life management integrates economic and ageing planning to maintain performance and safety as plants age. However, care should be exercised when continuing plant operation beyond the original plant life, since structures, systems and components (SSC) may have been worn out or otherwise degraded. Ageing Management Programs (AMP) are used to monitor and counteract these changes and to guarantee safe long term operation.

The scope of services provided by IDOM in the field of Lifetime Management comprises:

Development of the general ageing management scheme for the complete nuclear plant

Normally implemented according to the US-NRC regulation for licence renewal (10 CFR 54, NUREG-1800 and NUREG-1801), this includes the following activities:

>> Scoping and screening for identifying the SSC subject to ageing management.

> Typically, the scope of SSCs requiring ageing management should meet the criteria given in 10 CFR 54.4(a). The process starts with the whole set of plant systems and structures. From the plant documentation, the functions of each system or structure are identified and checked against the inclusion criteria. Those systems and structures not meeting any of the inclusion criteria are screened out.

> On the other hand, those systems and structures meeting any of the inclusion criteria are analysed in detail to identify which parts of them are required for developing their “intended functions”. In mechanical systems those parts are marked on the P&IDs. Architectural drawings are used to mark the required parts of the structures or civil works. The required portions of electrical systems are usually defined by the areas where the systems are deployed, since most of the ageing management programs for electrical components are defined on an area by area basis.

> The identified parts of systems and structures are used to define the list of SSCs which require ageing management. According to 10 CFR 54, the list can be further refined by screening out the “active” components (table 2.1-5 of NUREG-1800). This corresponds to the US-NRC regulatory environment, in which the ageing of “active” components is assumed to be monitored by periodically checking their performance (Maintenance Rule, 10 CFR 50.65).

> Once the list of SSCs is defined, plant documents are used to identify the construction materials and the environments to which they are exposed.

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>> Definition of the complete set of ageing management programs (AMP).

> This activity is performed in parallel with the scoping and screening activity. The purpose is to es-tablish a “library” of ageing management programs (AMPs) to be assigned, when appropriate, to manage the applicable ageing mechanisms identified for each component.

> The reference programs are those included in the GALL report (NUREG-1801). To define this li-brary of programs, current plant activities are looked at first and a gap analysis is performed. The purpose is to use inspection, mitigation and maintenance activities already implemented in the plant to the maximum extent possible.

> At this stage, if an activity is missing or deemed inadequate, a proposal for improvement is made to the plant and discussed with the technical staff.

>> Assessment of operating experience for the identification of possible plant specific ageing mechanisms.

> Within this activity, a systematic review of operating experience related with SSCs in the scope is made. Relevant data are unusual transients, failures, degraded conditions or any other unusual event with an effect on the ability of the SSC to perform its intended function. All this information is studied in detail in order to find out if the root cause of the anomalies can be related to ageing and, if so, if the ageing mechanism is specific to the plant.

> Generally, external operating experience has been taken into account in the reference documentation, mainly, the last revision of NUREG-1801 (GALL report). However, recent external operating experience should be reviewed based on SER and SOER reports of WANO or INPO and the reports published by the vendors (Westinghouse, General Electric, Areva, etc.). The purpose is to consider recent experiences of ageing related failures not taken into account in the reference documentation.

>> Identification of applicable ageing mechanisms to structures and components within the scope of the ageing management. Application of ageing management programs to each of the identified ageing mechanisms.

> This activity is the core of the ageing analysis. For each component, applicable ageing mechanisms are identified as a function of the construction material and the environment. For this purpose, the reference documents are the so called “EPRI Tools”, which are a set of reports published by EPRI as the outcome of several research programs on ageing of structures, mechanical and electrical components. Typically, in each particular project the application of the EPRI Tools to the plant is defined in a summary report, specific to the materials and environments present in the plant.

> Once the applicable mechanisms are identified, the analyst assigns the appropriate ageing man-agement programs (AMP) from the predefined library.

> In order to make the process more efficient, components built with the same material and subject to the same environment are grouped together in “commodities”. All components in the same commodity are given the same ageing management. A typical number of commodities in a LWR is in the order of 100.

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>> Ageing management review (AMR), to justify that applicable ageing mechanisms are adequately managed. Reconciliation with generic programs assigned by NUREG-1801 (GALL report).

> This activity is a sanity check of the ageing management defined for the commodities in the previous activity. The management is compared with the generic management given in the GALL report and any differences are given their justification.

> As a result, a review document is produced which is normally used to justify the ageing manage-ment to the Regulator.

>> Assistance to implementation of the ageing management programs by the utility’s personnel.

> After the general framework for ageing management is established, the process of implementing the new plant activities starts. This process is not straightforward, since it requires co-ordination between several utility departments and the assignment of new functions to each of them. The process usually requires support from the team of engineers who have carried out the main analysis. The purpose and the contents of each AMP have to be explained to the staff responsible for the implementation and the ways to monitor the performance of the AMP have to be defined. This process is very plant specific and normally requires the presence on site of the ageing management engineers.

>> Updating of the scope of the ageing management programs due to changes in the plant.

> Changes in the plant configuration should lead to changes in the scope of the AMPs. Therefore, procedures should be defined to periodically go through the process of revising the scope of SSCs under ageing management and, if applicable, identifying ageing mechanisms and the corresponding ageing management programs.

>> Monitoring of the performance of the ageing management programs.

> AMPs are living entities, whose performance should be monitored periodically. Performance of an AMP is measured as its ability to prevent the loss of the intended function of the components whose ageing is being managed. Both success and failure of the AMPs should be recorded. Failures should be used to modify and to improve the AMP.

>> Preparation of periodic reports on the performance of the AMPs and new operating experience.

> These reports act as the record of the information gained from monitoring and are usually required by the Regulator.

Identification of time-limited ageing analyses (TLAA)

TLAA are design-stage or later analyses, required for licensing the plant, in which credit to a limited operation time was given. They are typically related to neutron embrittlement, metal fatigue, environmental qualification or containment fatigue. Identification of the TLAAs requires a thorough review of all the analyses carried out as part of the design or later safety assessments of components within the scope of the ageing management review.

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Assessment of TLAAs

This entails validation for longer periods, re-analysis or definition of new ageing management programs to monitor ageing.

Once the TLAAs are identified, their implications on the long term operation have to be assessed. If the analyses are not valid beyond the design life, reanalysis is required. If reanalysis does not justify safety during the extended operation period, new ageing management programs should be defined to monitor the ageing effects which motivated each particular TLAA.

>>> Ageing Management reference projects

Starting in 2003, the above scope of services has been implemented by IDOM for seven reactors across five nuclear power plants. The technologies assessed include BWR and PWR. In each case the work is ongoing, with dedicated engineering teams both on site and in IDOM offices. Presently IDOM staff involved in these projects comprise more than 30 engineers. The sites and the associated technologies are set out below.

IDOM is providing Lifetime Management services at the following Nuclear Power Plants:

Santa María de GaroñaGeneral Electric BWRCommercial operation since 1971

Ascó I and IIWestinghouse PWRCommercial operation since 1982 and 1985

Almaraz I and IIWestinghouse PWRCommercial operation since 1981 and 1983

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Vandellós IIWestinghouse PWRCommercial operation since 1988

TrilloSiemens-KWU PWRCommercial operation since 1988

>>> International working groups

IDOM is taking part in the “International Generic Ageing Lessons Learned (IGALL)” programme promoted by the IAEA (http://www-ns.iaea.org/projects/igall/). This programme was established in September 2010, and it is scheduled to be completed by 2013. The aim is to develop a document which provides a guide for ageing mechanisms and effects based on both research results and accumulated operational experience. The document will represent an international agreement on what an acceptable Ageing Management Programme involves for standard plant components, structures, material and environments. IDOM participates in the working group on ageing of structures and its participation is being co-ordinated by the Spanish regulator (CSN).

>>>Expert missions

IDOM has participated as expert in the IAEA mission to Laguna Verde NPP (Mexico) to review and provide guidance on ageing management (2012).

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Our Team

IDOM offers a committed international and multidisciplinary team dedicated to high level performance, ensuring that projects are planned and delivered efficiently. By combining international experience and multidisciplinary expertise, IDOM adopts a holistic approach to ensure the work is carried out to the client’s satisfaction. When required, our core team will receive support from other highly skilled and experienced individuals within the company to ensure that momentum is maintained.

The IDOM Nuclear Services team is formed of 192 people who manage the projects of IDOM NS complementing their knowledge and expertise with people from other IDOM Technical Areas working as a Task Force Team.

Personnel

Managers

Staff

TOTAL

2010

31

2 374

2 405

2011

39

2 531

2 570

2012

36

2 585

2 621

2009

40

2 451

2 491

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Fields of Specialisation

The relevant specialisms provided by IDOM Nuclear Services are:

>> Plant Lifetime Management.

>> Stress Test Evaluations (seismic, flooding, other beyond design basis events).

>> Evaluation of Accidental Impacts, Explosions, Tornados etc.

>> Engineering Design (conceptual design, process engineering, civil and structural design, mechanical engineering, I&C and electrical design, radiological protection).

>> Advanced Analysis (fluid dynamics, non-linear stress analyses, thermal modelling, hydraulic modelling, pipe flexibility, high speed dynamics).

>> Regulatory Support Assessment.

>> Architecture and Design Services - Masterplanning

>> Training (fire protection regulation, geological and geotechnical, pipe flexibility, seismic evaluations, etc.).

>> Project and Construction Management & Turnkey Projects.

>> Decommissioning and Waste Facilities.

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Further information in

www.idom.com

Nuclear Services Brochure

http://www.idom.com/en/links/nuclear/brochure/

Annual Report 2013

http://www.idom.com/en/about-us/publications/

For further information on IDOM Nuclear Services please contact nuclear@idom.com

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www.idom.comnuclear@idom.com