Exelon Nuclears Long Range I

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Exelon Nuclears Long Range IC Strategy

• Chris Wiegand
• Executive Assistant to
• Senior VP Operations Support

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Exelon Nuclear is the Largest Operator of Nuclear
Plants in the United States and Third Largest in
the World - 12 sites, 20 reactors in
operation - 20,755 Megawatt Capacity
Exelon Nuclear
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Byron
Quad Cities
Limerick
LaSalle
TMI
Braidwood
Dresden
Oyster Creek
Peach Bottom
Clinton
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Braidwood Generating Station

• Location Braceville, IL
• Reactor Type PWR
• Number of Units 2
• Total Capacity 2376 MWe

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Byron Generating Station

• Location Byron, IL
• Reactor Type PWR
• Number of Units 2
• Total Capacity 2366 MWe

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Clinton Generating Station

• Location Clinton, IL
• Reactor Type BWR
• Number of Units 1
• Total Capacity 985 MWe

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Dresden Generating Station

• Location Morris, IL
• Reactor Type BWR
• Number of Units 2
• Total Capacity 1824 MWe

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LaSalle Generating Station

• Location Marseilles, IL
• Reactor Type BWR
• Number of Units 2
• Total Capacity 2280 MWe

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Limerick Generating Station

• Location Limerick, PA
• Reactor Type BWR
• Number of Units 2
• Total Capacity 2392 MWe

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Oyster Creek Generating Station

• Location Forked River, NJ
• Reactor Type BWR
• Number of Units 1
• Total Capacity 640 MWe

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Peach Bottom Generating Station

• Location Peach Bottom, PA
• Reactor Type BWR
• Number of Units 2
• Total Capacity 2318 MWe

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Quad Cities Generating Station

• Location Cordova, IL
• Reactor Type BWR
• Number of Units 2
• Total Capacity 1824 MWe

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Three Mile Island Station

• Location Middletown, PA
• Reactor Type PWR
• Number of Units 1
• Total Capacity 870 MWe

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Salem and Hope Creek

• Location Salem, NJ
• Reactor Type 2 PWRs/1BWR
• Number of Units 3
• Total Capacity 3334 MWe

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IC Strategy
The Constrained Approach

• The Exelon IC asset management strategy
  involves developing a 10 year plan for each IC
  system at each Unit.
• The 10 year plans identify the approach and
  actions needed to keep the system reliable for
  that approach
•   Run to failure System simplification
• Component replacement System / component
  upgrade
• System replacements
• Maintain existing system until end of plant life
•          
• The individual plans are then reviewed from a
  corporate perspective to levelize costs and take
  advantage of design once install many

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Sample Checklist for System Evaluation
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The Constrained Approach

• We call this the constrained approach because it
  is a methodical way to evaluate and plan for IC
  reliability
• In the past, we installed new systems, including
  digital, based on the promise of performance
  improvement without rigorous thought to other
  options
• The coordinated IC Asset Management plan creates
  the structure needed to allow appropriate
  prioritization of issues and options, and
  adequate planning and design time to meet outage
  milestones.
• The plan creates the framework by which system
  decisions are made regarding system maintenance,
  periodic refurbishments, and strategic component
  replacements to minimize failures while
  preparations are made for replacements or
  upgrades

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The Constrained Approach and Digital Systems

• Digital Replacements often do not fair well in
  the constrained approach because
• Regulatory uncertainty
• Short obsolescence cycle
• Cost of replacement (timemoney)
• Lessons learned the hard-way (plant trips)
• Exelon is working closely with EPRI and NEI to
  address the issues above
• Until the issues are addressed, particularly the
  regulatory uncertainty, digital system
  modifications will get little priority.

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Sample IC 10 year plan
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Questions ?
Thank You