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Philadelphia
Electric Transmission &
Distribution System
Investments

  Behind the scenes at the facilities
  that keep th...
Meeting the electric needs of
Philadelphia with new, rebuilt and larger
electric substations

  $160 million in the city’s...
New Southwark distribution
Substation
 $18 million capital investment
 Install new 69/13kV duplex substation adjacent to
 ...
Transformer Foundation Piles




                               4
New Transformer w/ Firewall




                              5
New Switchgear




                 6
Tunnel Substation
  $25 million capital investment
  New 220/13kV - 62MVA substation
  Located along Schuylkill River on U...
Tunnel Substation – April 2008




                                 8
Tunnel Substation – Dec 2008




                               9
Tunnel Substation – Boring Operation




                                       10
Tunnel Substation – North Bore Ducts




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Schuylkill & Grays Ferry
Transmission substations
 $18 million upgrades to Schuylkill substation
  • Major transmission su...
Schuylkill’s 69kV Circuit Breaker




                                    21
Disconnect Switch, Insulators & Bus




                                      22
New Breaker &Associated Bus Work




                                   23
Schuylkill Station Controls
Old and New




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Grays Ferry




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Additional City Investments
  $1.5 million replacement of automated switches for three
  Center City distribution networks...
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PECO projects in Philadelphia

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Overview of PECO capital investments and reliability projects in the City of Philadelphia

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PECO projects in Philadelphia

  1. 1. Philadelphia Electric Transmission & Distribution System Investments Behind the scenes at the facilities that keep the lights on in the city Summer 2009
  2. 2. Meeting the electric needs of Philadelphia with new, rebuilt and larger electric substations $160 million in the city’s electric infrastructure to ensure reliability for current and future energy demand Tuna Substation in Northern Liberties (2005) Waverly substation in Center City (2007) Southwark substation in South Philadelphia/Navy Yard (2008) Tunnel substation in University City (Spring 2009) Schuylkill & Grays Ferry tr substations in South Philadelphia (Summer/Fall 2009) These are part of a network of 20 electric substations that make up the Center City transmission system Near future: Penrose (2011) and Peltz (2013) substations planned in near future 2
  3. 3. New Southwark distribution Substation $18 million capital investment Install new 69/13kV duplex substation adjacent to existing substation • New control house • Two 62MVA 69/13kV transformers • 13kV switchgear for 3 distribution busses • 5 new distribution circuits 3
  4. 4. Transformer Foundation Piles 4
  5. 5. New Transformer w/ Firewall 5
  6. 6. New Switchgear 6
  7. 7. Tunnel Substation $25 million capital investment New 220/13kV - 62MVA substation Located along Schuylkill River on University of Pennsylvania campus • Meet substantial new electric demand in University City • Two (2) 62MVA 220/13kV transformers • Eight (8) 13kV distribution circuits − Ultimate capacity of 12 circuits • Nine (9) MVAR capacitor bank • Taps the 220-27 line between Parrish & Grays Ferry • Benefits − Relieves 40MVA load on facilities east of Schuylkill River − Improved reliability in West Philadelphia − Provides additional capacity to University City area − Begins the retirement of Schuylkill 13kV substation 7
  8. 8. Tunnel Substation – April 2008 8
  9. 9. Tunnel Substation – Dec 2008 9
  10. 10. Tunnel Substation – Boring Operation 10
  11. 11. Tunnel Substation – North Bore Ducts 11
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  20. 20. Schuylkill & Grays Ferry Transmission substations $18 million upgrades to Schuylkill substation • Major transmission supply for Center City • Modernizes existing facilities • Rebuilding electrical facilities on same site as existing sub • Replace 12 69kV breakers, disconnects, insulators, and bus work at the North and Center rings • Install 4 new 69kV breakers to tie in with Grays Ferry • Relocate controls from the neighboring generating station to newly installed control houses (North and East yards) $22 million Grays Ferry expansion • Increased electric transmission capacity for improved reliability and operational flexibility • Install 230-kv/69-kv transformer • Install new 69kV transmission line from Grays Ferry to Schuylkill Center ring • Install new 230kV breakers, upgrade existing breakers, and reconfigure Grays Ferry bus into ring bus Connect fiber optic rings • Schuylkill and Grays Ferry & Waverly, Lombard, and Penn 20
  21. 21. Schuylkill’s 69kV Circuit Breaker 21
  22. 22. Disconnect Switch, Insulators & Bus 22
  23. 23. New Breaker &Associated Bus Work 23
  24. 24. Schuylkill Station Controls Old and New 24
  25. 25. 25
  26. 26. 26
  27. 27. 27
  28. 28. Grays Ferry 28
  29. 29. 29
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  33. 33. Additional City Investments $1.5 million replacement of automated switches for three Center City distribution networks Replacement of vacuum circuit breakers • Multi-year commitment to replace outdated VCBs and install fiber for enhanced communications and operations in Center City $2 million for relocation of utility facilities for city’s South Street Bridge replacement • Relocation of manholes & ducts for construction • Installation of ducts in new bridge Aerial and underground distribution improvements in Germantown, Overbrook, Mt. Airy, Chestnut Hill, Walnut Street, Hunting Park Planned retirement of Southwark, Delaware and Schuylkill 13-kv substations in near future (within five year plan) 33

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