1. Westinghouse Operational Experience and Prospects for New Build
Sumit Ray
Director, PWR Product Technologies
Westinghouse Electric Company
April 19, 2006

2. Technology leadership
Westinghouse builds first industrial atom smasher (1937)
Westinghouse nuclear plant powers USS Nautilus (1953)
Westinghouse builds first PWR (1957)
Westinghouse technology transferred worldwide
Half the world’s nuclear power plants are Westinghouse designs
Westinghouse technology is basis for robust Korea program
Four AP1000 plants bid in China (2005)
Technology Leadership
1st industrial atom smasher 1937
USS Nautilus 1953
First PWR 1957
Worldwide technology transfer
One-half of all plants are Westinghouse designs
Westinghouse technology basis for robust ROK program
Bidding four AP1000s in China
Our only business is Nuclear

3. Westinghouse is investing in the future
Developing and Licensing New Designs
Generation III
Generation III+
Generation IV
Hiring New Employees
2000+ over the last five years
800 in 2005
500 per year for the foreseeable future
Westinghouse Investing In the Future
Developing and licensing new designs (GenIII, GenIII+, Gen IV)
Hiring new employees (2000 in last five years, 800 in 2005, at least 500 per year over next five years)

4. Nuclear plant output: growth during the past decade
Equivalent to 18 new 1,000-megawatt power plants
Million MWh
Nuclear Plant Output: Growth during Last Decade
640 million MWh to 789 million MWh
Equivalent to 18 new 1000MW plants
Source: EIA – Updated 3/05
Source: EIA – Updated 3/05

5. Plant applications for license renewal
Self explanatory bar chart
Source: NRC Updated 1/06
Source: NRC Updated 1/06

6. Market Signals Are Clear for New Build
Combined Construction Operating Licenses (COL)
Utilities overwhelmingly choosing Passive Reactor Technology
Westinghouse in discussion with other utilities on AP applications
Utility Submittal Technology
NuStart – TVA AP1000(2)
Dominion ESBWR(1)
Progress # AP1000(2)
Duke AP1000(2)
Constellation EPR(1)
NuStart/Entergy ESBWR(1)
Entergy # ESBWR(1)
Progress # AP1000(2)
Southern AP1000(2)
SCANA AP1000(2)
Market Signals Are Clear for New Build
Chart shows utilities and their technology choices
AP1000 is technology basis for 12 COLs
In discussions with other utilities

7. The Westinghouse AP1000 The Westinghouse AP1000
Large color rendering of AP1000
Industry, with support of US government, has taken steps necessary to make new build in US a reality
Entire nuclear power industry is well prepared for the challenges and opportunities of the next months, years, decades and centuries.

8. US NRC Regulatory Process
Design Certification (DC)
“The long pole in the tent will be design certification, which typically takes four or five years. And I don’t know how to shorten that.” Commissioner Edward McGaffigan, November 21, on COL applications
Vendor Docketed DC
Westinghouse June 26, 1992 December 16, (AP600)
Westinghouse March 28, 2002 December 30, (AP1000)
General Electric October 24, 2005 ?? (ESBWR)
AREVA (EPR) December 2007 ??

9. Best Solution for New Plants–Simplification
Simplicity in:
Design
Safety
Construction
Procurement
Operations
Maintenance
Construction Modularization

10. How is Simplification of Design Achieved for AP1000?
Standard PWR
AP1000
Passive Systems dramatically reduce the number and complexity of active systems.
Containment Cooling is accomplished by air and water cooling of the freestanding steel containment vessel.
Air cooling enters vents at the top of the shield building. It travels down to the bottom of the air baffle and then up between the baffle and the containment shell.
The air exhausts at the center of the shield building roof.
Air cooling is supplemented by water cooling from a large tank of water above the containment vessel.
No operator action is required. 72 hours of containment water cooling is provided in the PCS tank.
No safety-related AC power is required (Diesels)
Actuation and monitoring functions are provided from safety-related batteries. The digital protection system activates a few safety related devices. Operator action is not required.

11. How is Simplification of Design Achieved for AP1000? (cont’d)
Simple 2-loop reactor coolant system with canned motor pumps
Use of passive safety systems
No reliance on safety grade AC power

12. Simplification Smaller Footprint
Evolutionary PWR
Simplification=Smaller Footprint
Self explanatory nuclear footprint of AP1000 in comparison to Sizewell B
Many Evolutionary plants improve PRA and safety by adding equipment thereby adding redundancy (4 train) and diversity.
Passive safety presents an alternative approach to improved safety which simplifies the plant.
Sizewell B is a 1250MW 4-loop PWR in England. AP1000 net electrical output is 1117MW.
The comparison is to scale. The AP1000 is much smaller and simpler than Sizewell B.
The four colors represent the Safety related Electrical Divisions for AP1000 and Sizewell.
AP1000
Evolutionary PWR
AP1000

13. Simplification of Design Eliminates Components and Reduces Cost**
35% Fewer Safety Grade Pumps
45% Less Seismic Building Volume
50% Fewer Valves
80% Less Pipe
85% Less Cable

14. Comparison of Selected Parameters
Net Electric Output, MWe(2.5”HgA)
Reactor Power, MWt
Hot Leg Temperature, oF
Number of Fuel Assemblies
Type of Fuel Assembly
Active Fuel Length, ft
Linear Heat Rating, kW/ft
R/V I.D., inches
Vessel Thermal Design Flow, gpm
Steam Generator Surface Area, ft2
Reactor Coolant Pump Flow, gpm
Pressurizer Volume, ft3
610
1933
600
145
17x17 12
4.10
157
194,200
75,000
51,000
1600
AP600
AP1000
1117
3400 14
5.71
299,880
125,000
78,750
2100
PARAMETER
985
2988
626
5.02
295,500
68,000
103,400
1400
Doel 4 / Tihange 3
Note the AP1000 power density of the core has been increased but is no higher than some currently operating Westinghouse plants (e.g., Virgil Summer).

15. AP1000 Fuel Assembly Based on current 17x17XL fuel in use worldwide
Robust Fuel Design including:
Advanced ZIRLOTM material
Clad, grids, thimbles
Lower corrosion and growth
Debris tolerant features
Intermediate mixing grids
Integral burnable absorbers
Larger fission gas plenum
Annular enriched axial blankets
Low cobalt removable top nozzle
Highest Fuel Reliability

16. Lowest Risk Approach to New Nuclear Generation
Q 3
Q 4
Q 1
Q 2
2014
2013
2004
2009
2010
2011
2012
2005
2006
2007
2008
2016
2015
COL Engineering
Early Procurement Activities
Pre-Construction Site Activities
Construction
Startup
FOAK Design Details
AP1000 DC
Commercial Operation
COL Issued
Place Order
Submit COL
FDA
COL engineering and detailed engineering will be completed under the DOE 2010 program. Westinghouse cost sharing 50/50 for work we are performing; we are continuing to invest in the technology.
Southern should be able to obtain a COL in parallel with the NuStart COL process, utilizing all of the information developed under the NuStart program and supplementing as necessary with site-specific information. The site-specific work will have to be done outside of the NuStart program.
Shop loading in forging and manufacturing shops may require early placement of orders for some long-lead material. Could be as early as two years (or more) prior to contract signing.
Past practice for multiple unit sites has been to bring a new unit on line every year. This could possibly be shortened slightly. For China we looked at a delta of 8 months and decided we could do it.

17. Westinghouse is committed to passive technology
Westinghouse Committed to Passive Technology
Self explanatory slide shows benefits and milestones of AP600 and AP1000
Westinghouse has made a significant investment in passive technology for more than 15 years and is convinced that this is the right technology for new build today.
AP1000 is designed for modular construction, which helps reduce craft labor requirements at the construction site.
Significant work has been done to develop a construction sequence and schedule.
NRC Approves Certification of Westinghouse’s AP1000 Advanced Reactor Design

18. AP1000 Provides Safety and Investment Protection
Results
U. S. NRC
Requirements
Current
Plants
Utility
Requirements
1 x 10-4
Excellent Core Damage Frequency Results are obtained for the AP1000 meeting all requirements with significant margin.
The AP1000Core Damage Frequency exceeds regulatory requirements by a factor greater than 100.
5 x 10-5
1 x 10-5
4 x 10-7
Core Damage Frequency per Year

19. Safest Nuclear Plant Available
“the most significant improvement to the design is the use of safety systems that employ passive means”
“the low CDF and risk for the AP1000 plant reflect Westinghouse’s efforts to systematically minimize the effect of initiators/sequences that have been important contributors in previous PWRs”
AP1000 Safety Analysis Report
*NRC Staff comments on AP1000 (CDF 5x10-7 events/year)