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Reliability Assessment/Construction Plan Evaluation Overview and Assumptions

Reliability Assessment/Construction Plan Evaluation Overview and Assumptions. 2007 Transmission Summit July 31, 2007 New Orleans, Louisiana. Reliability Assessment Assumptions. Reliability assessment used 2006 series models, April 2007 update.

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Reliability Assessment/Construction Plan Evaluation Overview and Assumptions

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  1. Reliability Assessment/Construction Plan Evaluation Overview and Assumptions 2007 Transmission SummitJuly 31, 2007New Orleans, Louisiana

  2. Reliability Assessment Assumptions • Reliability assessment used 2006 series models, April 2007 update. • Contingency scans were run on the 2008 Summer, 2008 Winter, 2010 Summer, 2012 Summer, 2012 Winter, and 2015 Summer • Monitored elements and contingencies • 69 kV and above for: EES, LAGN, LEPA, CNWY, WMUC, DERS • 115 kV and above for: CLEC, LAFA, DENL, SMEP, AEPW, EMDE, OKGE, SWPA • 230 kV and above for: SOCO, AMRN, AECI, TVA • Breaker-breaker contingencies simulated • Category C contingencies simulated for Entergy system • 2012 Summer model presented

  3. Count of Thermal Overloads Prior to Upgrades Category A

  4. Count of Thermal Overloads Prior to Upgrades Category B

  5. Count of Voltage Violations Prior to Upgrades Category A

  6. Count of Voltage Violations Prior to Upgrades Category B

  7. Construction Plan Evaluation • ICT evaluated Entergy’s draft Construction Plan Projects to determine: • What benefits were provided by the projects • If the projects addressed the reliability issues they were designed to address • If any changes to the projects are necessary • If the projects comply with the Planning Criteria • Construction Plan Projects were evaluated on the 2012 Summer model.

  8. Entergy Reliability Assessment and Construction Plan EvaluationTexas ~ Louisiana South 2007 Transmission SummitJuly 31, 2007New Orleans, Louisiana

  9. Draft Construction Plan ProjectsGSU - Texas • Install Bluewater Cap Bank (2008) • Expand Calvert Cap Bank (2008) • Upgrade Fawil Auto (2008) • Beaumont 69 kV upgrades (2009) • Upgrade L886 Tamina – Conroe (2009) • Western Region Phase 3 (2011) • Upgrade Hartburg – Inland Orange (2012)

  10. Draft Construction Plan ProjectsGSU - Louisiana • Install Cap Bank at Winn (2008) • Upgrade Lawtag – Jennings (2008) • Install Cap Bank at McManus (2008) • Acadiana Area Voltage Improvement (2009) • Nesser Area Voltage Improvement (2009) • Amite South Import Phase 3 (2009) • Install Cap Bank at Colonial Academy (2010) • Upgrade Alchem – Monochem (2010) • Coly – Hammond (2011)

  11. Draft Construction Plan ProjectsEntergy Louisiana South • Alliance – Happy Jack (2008) • Amite South Import Phase 2 (2009) • Amite South Import Phase 3 (2009) • WESCO (2009) • Napoleonville Cap Bank (2010) • Peters Rd. – Oakville (2011) • Down Stream of Gypsy Phase 3 (2011) • Coly – Hammond (2011)

  12. Draft Construction Plan ProjectsEntergy New Orleans • ENOI • Restore Paterson (2008)

  13. Bryan2012 Summer Expand cap bank at Calvert

  14. Western Region2012 Summer Western Region Phase 3 (2011) Western Region Phase 3 Western Region Phase 3 Upgrade Porter – Conroe (2009)

  15. South Texas2012 Summer Upgrade Hartburg – Inland Orange (2012) Install cap bank at Bluewater (2008)

  16. Beaumont/Pt. Arthur2012 Summer Beaumont area 69 kV Upgrades

  17. Beaumont2012 Summer Beaumont area 69 kV Upgrades Beaumont area 69 kV Upgrades Beaumont area 69 kV Upgrades

  18. East Texas2012 Summer Cut in Line 81 Deweyville to Fawil (2007) Upgrade Fawil Auto (2008)

  19. Lake Charles2012 Summer

  20. Southwest LA2012 Summer Upgrade Lawtag – Jennings (2009) Close normally open switch between Winn and Lake Arthur Install cap bank at Winn (2008)

  21. Acadiana2012 Summer Colonial Academy Cap Bank (2010) Meaux, Leblanc Cap Bank additions (2009)

  22. Feliciana2012 Summer Expand McManus Cap Bank

  23. Baton Rouge2012 Summer Port Hudson substation upgrades (2007) Coly – Hammond 230 kV (2011)

  24. Baton Rouge2012 Summer Jefferson – Nesser 69 kV (2009)

  25. GSU Industrial Corridor2012 Summer Upgrade Alchem – Monochem (2010)

  26. Southeast LA2012 Summer Napoleonville Cap Bank (2010)

  27. Northshore2012 Summer Hammond – Amite convert to 230 kV (2007) Coly-Hammond 230 kV line (2011)

  28. New Orleans2012 Summer Restore Patterson to 4-terminal configuration (2008)

  29. Plaquemines Parish2012 Summer Peters Rd – Oakville 230 kV (2011) Oakville Alliance – Happy Jack 115 kV (2008)

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