1. SPP.org 1

2. Regional and Inter-Regional Planning Update Entergy Transmission Summit July 29, 2008 Astor Crown Plaza New Orleans, Louisiana

3. SPP.org 3 SERTP/RPSG: Southeast Regional Transmission Planning / Regional Planning Stakeholder Group www.southeasternrtp.com SIRPP: Southeast Inter-Regional Participation Process www.southeastirpp.com JCSP: Joint Coordinated System Plan Presentation Overview

4. SPP.org 4 SERTP / RPSG Meetings 3/24/2008 Formation of RPSG and Selection of Sensitivity Studies for 2008 6/25/2008 Preliminary 10-Year Expansion Plans of SE Region Transmission Owners 9/23/2008 Preliminary Results November Transmission Summit Final Study Results

5. SPP.org 5 RPSG Sensitivity Studies 1000 MW MobileAtlanta EntergyGITS AlabamaFlorida EntergyAlabama GITS Santee Cooper SCEG 2000 MW 1000 MW

6. SPP.org 6 Southeastern Region Reliability Planning Load Forecast External Models Generation Resources Regional Assess. & Trans Exp Plans Inter-Regional Simultaneous Assessment of System Plans Inter-Regional Issues Identified Coordinated Planning Through Reliability Coordination Agreements Stakeholder Input Stakeholder Input Stakeholder Input

7. SPP.org 7 SIRPP Activity April 3, 2008- Stakeholders Organizational Meeting June 10, 2008 Meeting Stakeholder Group was formed Economic Studies selected Coordinate on study assumptions October, 2008 Conference Call Review preliminary study results January, 2009 Review final study results and draft report February, 2009- Final report issued

8. SPP.org 8 SIRPP Step 1 Economic Studies for 2008 2000 MW EntergyGITS PJM+MISOSouthern PJM PJM (classic)Southern SPP (JCSP) 2000 MW 3000 MW 5000 MW Southern

9. SPP.org 9 Joint Coordinated System Plan Scope of Work Perform Eastern Interconnect wide study 1.Reliability Study – 2018 model 2.Economic Analysis – 2024 model Incorporate DOE Eastern Wind Integration & Transmission Study objectives Future Scenarios 1.Reference (today’s reference values) 2.20% Wind (by 2024)

10. SPP.org 10 Joint Coordinated System Plan Timeline Initial Meeting – November 1, 2007 Economic Analysis – March 1, 2008 HV Transmission Overlay Development– December, 2008 Reliability Assessment – August 2009 Cost Allocation Analysis – October, 2009

11. SPP.org 11 Joint Coordinated System Plan Current Status Preliminary transmission plans for each future have been completed Beginning to test transmission plans for robustness Testing and consolidation of transmission plans to be completed by December, 2008

12. Questions / Comments spp.issuetrak.com Quick Pick: ICT Planning – Base Plan spp.issuetrak.com Steve Purdy Lead Engineer, ICT Planning 501-614-3371 SPurdy@SPP.org SPurdy@SPP.org Doug Bowman Lead Engineer, ICT Planning 501-688-1640 DBowman@SPP.org DBowman@SPP.org