1. ICT 2011 Reliability Assessment and Construction Plan Evaluation Entergy Transmission Summit August 11, 2010 Sheraton New Orleans, Louisiana

2. SPP.org 2 Overview Background Scope Draft Construction Plan Results

3. SPP.org 3 Background Reliability Assessment is performed pursuant to Entergy’s Open Access Transmission Tariff (OATT) Attachment K. Objectives: Assess of the ability of the Entergy transmission system to perform according to the Planning Criteria. Evaluate the Construction Plan’s ability to mitigate any performance deficiencies found. Provide basis for development of the Base Plan.

4. SPP.org 4 Background

5. SPP.org 5 Background Draft report was made available for stakeholder review and comment Posted on Entergy’s OASIS July 1, 2010 Presentation made at LTTIWG July 21, 2010 Final report is posted on Entergy’s OASIS. Detailed spreadsheets not included in report are posted on Entergy’s oasis Background models, data, and other information is posted on Entergy’s oasis

6. SPP.org 6 Entergy Planning Criteria Planning Criteria NERC Planning Standards SERC Supplements Entergy’s Local Planning Criteria Entergy’s Business Practices (Planning Guidelines) Posted on Entergy’s OASIS NERC Planning Standards being revised

7. SPP.org 7 Reliability Assessment Scope Models (2009 Series Update 1) Near-Term Period: Summer & Winter 2012 & 2016 Longer-Term Period: Summer 2019 Construction Plan Projects 1.Initial Scan: Approved Projects from 2010-12 Construction Plan (CP) 2.CP Evaluation: Approved and Proposed Projects from 2011-13 CP System Intact Review – Category A Contingency Scan – Category B Breaker-to-Breaker analysis ICT’s 100MW rule (Bus-to-Bus analysis)

8. SPP.org 8 Reliability Assessment Scope (cont) Sensitivities Specific Load Pocket Criteria Low Hydro Sensitivity

9. SPP.org 9 Entergy’s Draft Construction Plan 2011-2013 May 7, 2010: Original Draft Posted July 28, 2010: Update 1 Posted 2 New Projects (1 replaced) 2 Delayed Projects 5 projects changed from Proposed to Approved 2010 BP and 2010-12 CP Differences Report No differences

10. SPP.org 10 Map Legend Year Color Key Overloads and Low Voltages Planned Upgrade from Entergy’s Draft Construction Plan Other Notes Solution being investigated Annotations Contingency Scan Results with Entergy’s Draft Construction Plan Projects Included Key to Map Highlights

11. SPP.org Arkansas CPE Results 11 Brandon Hentschel

12. SPP.org 12 (2015)Calico Rock- Melbourne - Upgrade 161kV Line (2016) Norfork-Calico Rock : Upgrade 161 kV Line Holland Bottoms Project

13. SPP.org 13 (2019)Truman- Truman West- Upgrade 161 kV Line

14. SPP.org 14 Clarksdale op-guide Helena Op-guide (2016)AECC L&D 2 to Gillett: Construct new 115 kV Line

15. SPP.org 15 (2016)AECC L&D 2 to Gillett: Construct new 115 kV Line

16. SPP.org 16 (2016)Hot Springs Hamilton (Albright) - Bismarck: Construct new 115 kV Line and convert Bismarck and Mountain Pine South to ring bus stations. Add capacitor bank at Milton

17. SPP.org 17 (2019)Mayflower - Morgan 115 kV Line: Upgrade (2016) NLR Westgate - NLR Levy: Reconductor 115 kV Line (2016) NLR Levy - NLR Dixie: Reconductor 115 kV line

18. SPP.org 18

19. SPP.org 19 (2016) Monticello East to Reed construct new 115 kV line

20. SPP.org 20 (2016)Ebony SS 161 kV (Phase 2): Install, 24 MVAR capacitor bank (2016)Getwell Area Improvements

21. SPP.org 21 Low Hydro Simulate reduced availability of SPA hydro units during summer peak (2012, 2016, and 2019) Conway (Arkansas) Area Little Rock Truman

22. SPP.org 22 Low Hydro (cont)

23. SPP.org 23 Low Hydro (cont)

24. SPP.org 24 Load Pocket Criteria 2016 Summer Application of Specific Load Pocket Criteria Western Amite South Downstream of Gypsy (DSG) G-1, N-1 No new problems identified.

25. SPP.org Mississippi CPE Results 25 Eric Burkey

26. SPP.org 26 (2016)Getwell Area Improvements: Construct new 230 kV line from Getwell to new Senatobia Industrial 230-115 kV substation. Add new 230-115 kV autotransformer at new Senatobia Industrial substation. Cut in Senatobia to Sardis 115 kV line into new substation.

27. SPP.org 27 (2013)Ray Braswell - Wyndale 115kV Line

28. SPP.org 28 (2013)Ray Braswell - Wyndale 115kV Line (2017)Braswell to Forest Hill 115 kV Line Upgrade (2014)Rankin Industrial – Airport 115 kV Line Upgrade (Target)Upgrade South Jackson - East Jackson 115kV line

29. SPP.org 29 (2016)Lake Village Bagby to Reed 115 kV Line Upgrade

30. SPP.org Louisiana CPE Results 30 James Lyle

31. SPP.org 31 Vatican-Scott 138kV (2015)Vatican 138 kV Substation: Cut in Scott to Acadia 138 kV line to Vatican 138 kV, and add breakers at Vatican.

32. SPP.org 32 (2019) Champagne – Add 138kV Capacitor Bank

33. SPP.org 33 (2015) Port Hudson – Zachary REA 69kV Upgrade Line (2014) Jackson – Tejac 69kV Line (2014) McManus to Brady Heights – Upgrade 69kV Line (2015) Port Hudson – 69kV Area Improvement

34. SPP.org 34 (2015) Coly Area Improvement – Upgrade 230/69kV Autotransformers (2015) Port Hudson – Zachary REA 69kV Upgrade Line (2014) McManus to Brady Heights – Upgrade 69kV Line (2014) Jackson – Tejac 69kV Line

35. SPP.org 35 (2015) St. James – Add 230kV Capacitor Bank (2016) Sorrento Upgrade 138/115kV Auto & upgrade Gonzales-Sorrento 138kV Line

36. SPP.org 36 Valcherie – Waterford 230kV (2018) Raceland – Cut Waterford to Valentine 230kV line in/out of Raceland

37. SPP.org 37 Cleco Project: Var support

38. SPP.org 38 (2016) Mt. Olive to Arcadia – Construct new 230kV line (Operate at 115kV)

39. SPP.org 39 (2016) Mt. Olive to Arcadia – Construct new 230kV line (Operate at 115kV) (2019) Arcadia to Sailes – Construct new 230kV line (Operate at 115kV)

40. SPP.org 40 Lake Charles Bulk Transformers (2017) LC Bulk: Construct 230kV facilities & add 230/69kV Autotransformer

41. SPP.org 41 Chlomal - Lacassine Canal-LA - Mossville

42. SPP.org Texas CPE Results 42 Eddie Filat

43. SPP.org 43 Create normally open point at Batson

44. SPP.org 44 Create normally open point at Batson

45. SPP.org 45 Transfer of load from Atlantic Bulk 69 kV to the 230 kV system at Gulfway.

46. SPP.org 46 (2016) China – Stowell 138 kV Line South Beaumont to Lovells Lake

47. SPP.org 47 (2016) Conroe Area Switching Station

48. SPP.org 48 (2015) Upgrade Jacinto-Splendora 138 kV Line

49. SPP.org 49 (2012) New Caney capacitor bank expansion (2018) Expand cap bank at Dayton Bulk

50. SPP.org 50 Questions? Brandon Hentschel Engineer II, ICT Planning 501-688-1603 bhentschel@spp.org bhentschel@spp.org