1. 2008-2010 Base Plan Development Overview 2007 Transmission Summit July 31, 2007 New Orleans, Louisiana

2. www.spp.org 2 2008-10 Base Plan Development Process Reliability Assessment LTTIWG Status Update Construction Plan Evaluation Post Initial Construction Plan Receive & Review Final CP Transmission Summit Formal Stakeholder Comment Period LTTIWG Present Draft Base Plan LTTIWG Discuss Summit Comments Post Base Plan, Construction Plan LTTIWG Base Plan Review Mar 1 – Apr 12, 2007Apr 11 Apr 13 – May 24May 28 – Jun 15 June 26July 31 Aug 1 – 21Sept 11 Oct 16Dec 3 - 7 Dec 14 Jan 2008 Entergy’s CP Revision Period Base Plan Development Base Plan Development, cont. Tentative Dates

3. www.spp.org 3 Develop List of Projects to Evaluate Entergy Construction Plan Stakeholder & Regulator Input on Potential Upgrades ICT’s Reliability Assessment Evaluate Projects Base Plan Identify Opportunities for Regional Optimization Base Plan Development

4. www.spp.org 4 Timeline for 2008-10 Base Plan 8/1-21 Stakeholder Comments Period 8/1 Begin BP Development 9/11 LTTIWG Discuss Summit Comments 10/16 LTTIWG Present Draft BP 12/14 Receive the Final Construction Plan 12/3-14 Finalize and Post the Base Plan and Construction Plan

5. www.spp.org 5 Contact Info Steve Purdy spurdy@spp.org 501-614-3371 415 N. McKinley, Suite 140 Little Rock, AR 72205 Jason Russell jrussell@spp.org 501-614-3514 415 N. McKinley, Suite 140 Little Rock, AR 72205