introduction of areva group and project experience with modernization of vver reactors

> AREVA NP GmbH Reinhard Heck, ME-G Int. Nuclear Forum "Nuclear Energy and Environment", 2-4 June 2006, Varna / Restricted confidential. All rights are reserved.AREVA NP

Introduction of AREVA groupand

Project Experience with Modernization of VVER Reactors

2> AREVA NP GmbH Reinhard Heck, ME-G Int. Nuclear Forum "Nuclear Energy and Environment", 2-4 June 2006, Varna / Restricted confidential. All rights are reserved.AREVA NP

AREVA: Steps towards a global leadership in the energy industry

Within 5 years, AREVA has established itself in the international energy market as a leader in nuclear technology

To underline this develop-ment, the Board of Directors decided to structure the AREVA group into

AREVA NP, AREVA NC and AREVA T&D

New name, clear structure

April 2006


AREVA engineering and supplies

Front End Division(AREVA NC)

Reactors and Services Division

(AREVA NP)

Back End Division(AREVA NC)

Transmission and Distribution Division(AREVA T&D)


Legal Structure of the AREVA group

2005:

€ 10,1 billion sales

58.760 employees

AREVA NP is an AREVA and Siemens company.

ENERGYENERGY

AREVA NCAREVA NCAREVA NPAREVA NP AREVA T&DAREVA T&D Equity interests

Equity interests

34% 100%66% 100%


Organization of the group

FRONT ENDDivision

REACTORS & SERVICESDivision

BACK ENDDivision

TRANSMISSION& DISTRIBUTION

Division

• Plants

• Equipment

• Nuclear Services

• Nuclear Measurements

• Consulting& Information Systems

• AREVA TA

• Mining

• Chemistry

• Enrichment

• Fuel

• Treatment

• Recycling

• Logistics

• Clean-up

• Engineering

• Products

• Services

• Systems

• Automation

AREVA NP


AREVA around the globe

100 countriesMarketing & Sales

€ 6,754 M: 67%of all sales come from outside France

EUROPE & CIS

63% of sales- Nuclear: 77%- T&D: 23%

43,279employees

ASIA-PACIFIC


5,824employees

NORTH & SOUTHAMERICA


7,912employees

40 countriesProduction & Manufacturing

AFRICA & MIDDLE EAST


1,745employees

Production & manufacturing


Examples of AREVA NP activities in Central and Eastern Europe

Upgrade safety level to meet current requirements

Improve operational features

Enhance competitiveness

Remove aging effects

Extent plant license and lifetime

Faciltate EU accession

Areva NP modernizes VVER NPPs in order to:



Modernization of Kozloduy 5 & 6 *

Rest lifetime assessment and modernization of Kozloduy 3 & 4 *

Participation in new NPP Tianwan 1 & 2 *

Reconstruction of Bohunice V1

Completion and modernization of Mochovce 1 & 2 *

I&C replacement in Paks, Dukovany and Loviisa

Various co-operation projects in Russian NPP (Kola, Kalinin, Balakovo, Novovoronezh)

Various co-operation projects in Ukrainian NPP (South Ukraine, Zaporozhye, Rovno, Khmelnitsky, Chernobyl)

* in co-operation with

Atomstroyexport

AREVA NP references in VVER NPPs:



Kozloduy 5 & 6 (VVER1000) – Modernization Project

Long term core cooling improvement

Emergency power supply and electrical systems improvement

Containment integrity

Instrumentation and control

Radiation monitoring system

Diagnostic and computerised information systems

Replacement and modernisation of information systems

Internal and external hazards

Safety analyses and operation documents

Mechanical analyses



Bohunice V1 (VVER 440/230) - Targets of Modernization

Reduction of core damage frequency

Increased reliability of reactor trip system, ECCS safety features and confinement spray system

Reduced probability of double ended guillotine break of 500 mm RCS lines Improvement ECCS against extended LOCA spectrum, based on new DBA New digital safety I&C

Reduction of radiation exposure

Confinement leak-tightness and localization system improvement Improvement of ECCS and confinement spray system Pressure suppression system

Seismic reinforcement up to scale 8

Update of safety documentation / emergency operating procedures



Completion & Modernization of Mochovce 1 & 2

Main Goals:

- Accident analyses

- Integrity of RPV

- Improvement of core cooling

- Primary-secondary leakages

- Scope and methodology

- I&C supply

- Seismic improvement

Final Statement by Riskaudit (2000):“Mochovce Nuclear Power Plant is the first soviet designed nuclear power plant completed in an East European country that achieved a

safety level comparable with western standards”.



To keep up with rapid development of technologies Original systems become outdated Increasing cost to guarantee for spare parts and adequate

service

Modern digital technology has key advantages

It reduces time and cost for diagnostics and tests It offers more flexibility for plants operation It contributes to cost optimization

Long term supply for modern systems assured

I&C modernization: What are the specific arguments?



Bohunice V 1 - Modernisation of I&C

Reactor shut down system

Control of emergency and residual heat removal (ESFAS)

In-core measurement

Neutron ex-core measurement

Emergency instrumentation

New design for main and emergency

control room

Radiation control

Diagnostic systems

Unit 2: completed 1999Unit 1: completed 2000



Replacement of I&C by Teleperm XS:

Reactor shut down system, ESFAS

Neutron flux measurement

Testing system for I&C-Tests HW and SW

Environment for further improvement

Project Status:

Unit 1: since 1999 in operation with TXS

Unit 2: since 2000

Unit 3: since 2001

Unit 4: implementation in April/May 2002

I&C Replacement in NPP Paks (VVER 440/213)



After 2 decades of operation, modernization is required to maintain competitiveness, to adopt to newest standards and to assure further safe operation

Operational and safety improvement is the basis to obtain public acceptance and to reach common ecological and economical targets

VVER in Central and Eastern Europe which have passed through comprehensive modernization programs achieved above targets

The key for success is the international co-operation of strong and experienced partners

Conclusions:



After successful completion of several mutual projects AREVA aims to cooperate as a partner of Atomstroyexport in the Belene NPP

AREVA offered supplies are mainly related to safety measures, I&C, electrical systems, heating, ventilation and air conditioning

Currently, AREVA cooperates with Atomstroyexport in the new VVER of Tianwan 1+2 with a comparable scope of supplies

AREVA´s participation in Belene will facilitate public and political (EU) acceptance and support to reach Bulgaria´s ecological and economical targets

New Challenges:

introduction of areva group and project experience with modernization of vver reactors

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