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Westinghouse’s plant for the Nuclear Renaissance :

AP1000

Fernando Naredo

Milan, January 30, 2006

AP1000 Advanced Passive Plant

� Designed to compete with other sources in

deregulated power markets

- Two loop, Pressurized Water Reactor

- 1100 MWe

- 60 year life

- 18 month fuel cycle

- 93% availability

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AP1000 Advanced Passive Plant

� Modular and Simplified

� Passive safety systems (gravity, natural

circulation, condensation)

- Requires no operator action for 72 hours

after an incident

- Maintains core and containment cooling

without ac power

- Licensed in the United States

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Westinghouse’s Investment in Passive Technology

Passive Safety Systems

US Licensing Approval

Reduced Components & Commodity Components

VE SSEL S UPPO R T

IN SU LAT IO NSUP PO RT

RE MO VABL EI NSU LAT IO N

SU PPO RT

PER MAN EN TC AVIT Y

SEAL RI NG

SHIE LD BLO C K

O UT LET VEN TD AM PER

IN SU LAT IO N

T /C

IN LET F LO ATBAL LS

C O LD LEG

H O T L EG

WAT ER IN

S TEA M / W AT ER O U T

Severe Accidents Mitigation Features

Short Engineering and Construction Schedule

Innovative Design Features

Modular Construction

AP1000

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� Power generation systems in AP1000 are based on

traditional PWR technology:

– Same system arrangements and functions

– Same basic components: fuel, reactor vessel, steam generator, turbine generator, etc.

� Safety systems are simplified:

– Tanks & pipes instead of pumps and valves

– Validated by extensive scale tests and rigorous NRC review

AP1000 Is Proven, Simplified Technology

No technology risk

Fundamental principles of operation: gravity,

natural circulation, condensation

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AP1000 Design Certification Schedule

�Mar 28, 2002 Applied for Final Design Approval (FDA)

�Sept 13, 2004 Final Design Approval issued

�Dec 30, 2005 Design Certification (DC) approved

AP1000 is licensed in the

U.S.

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Proven AP1000 Reactor Coolant System

� Proven Reactor Design

– W XL Core Designs

– Doel 4; Tihange 3; South Texas

� ∆∆∆∆125 Steam Generators

– Similar to large W/CE SG in operation

– System 80; ANO RSG

� Reactor Coolant Pump

– Canned motor pumps

– Naval reactors; AP600; early commercial

reactors

� Simplified Main Loop

– Same as AP600

– Reduced welds / supports

� Pressurizer

– 50% larger than operating units

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Standard PWR AP1000

Simplification of Safety SystemsDramatically Reduces Building Volumes

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AP1000 Is Much Simpler Than Evolutionary Plants

Evolutionary PlantSafety / Seismic Structures

AP1000 Safety / Seismic Structures

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3 7

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LEGEND:

1. CONTAINMENT/SHIELD BUILDING

2. SAFEGUARD BUILDING

3. FUEL BUILDING

4. AUXILIARY BUILDING

5. DIESEL GENERATOR BUILDING

6. ESSENTIAL SERVICE WATER/CIRCULATING WATER PUMP HOUSE

7. LIQUID RADWASTE BUILDING

100M806040200

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Parallel Tasks On Modular AP1000 Shorten Construction Schedule

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Schedule for a Standardized

AP1000 Plant - 60 Months (Single Shift)

18 Months 36 Months 6 Months

Pre-Construction Construction Start-up

Limited Work Authorization

Plant Order

Containment VesselProcurement andModule Fabrication

ExcavationFirst Structural Concrete

Nuclear Island Basement

Turbine Island Basemat/Pedestal

Set TurbineGenerator

Fuel Load

Lower Ring

Internal Concrete/Steel Modules

Set Primary Equipment

Cold Hydro

Hot

Upper Ring

Top HeadMid-Ring

Polar Crane

CommercialOperation

Bottom Head

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Westinghouse Activities

with U.S. Power Companies

� Most significant interest currently centered

in the Southeastern United States:

– Duke - has announced plans and selected AP1000 technology for their COL application

– Progress - has announced plans and selected AP1000 for a COL application at the Harris site

– SCANA - has announced plans and has met with USNRC to discuss COL activities

– Southern - has announced plans to pursue ESP (and perhaps COL) for Vogtle site

– TVA - Bellefonte site has been selected for the NuStart AP1000 COL application

� Westinghouse has signed an Agreement

with Duke and has had varying degrees of

interaction with the others

� Interest also being expressed by other US

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Ansaldo / Westinghouse AP1000Co-operation

� Ansaldo has participated since 1989 in

development of the passive plant technology

embodied in the AP1000 design

� Ansaldo and Westinghouse are the industrial

partners in a co-operative program with

European utilities to apply the technology in

Europe (European Passive Program)

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AP1000 - European Involvement

� Involved in European Passive Plant (EPP) Program for over 10 years

� AP1000 has been assessed against EUR Rev. C and shows good level of compliance

� Current and future EPP programs are addressing required

changes to the AP1000 for European application and

licensing

The European activities

provide confidence that

the AP1000 can be

licensed in Europe 13