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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
power companies 11
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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
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