Strategic Plan and Economic Upgrade Process 2007 Transmission Summit July 31, 2007 New Orleans, Louisiana

Strategic Plan 10-Year Study 2015 Summer Peak Develop alternate dispatch scenario to more closely reflect real-time dispatch Review historical generation patterns to determine what generation does not typically run Possibly run a minimum load case

Strategic Plan: Goals Address frequently TLR’d flowgates Remove or reduce the need for RMR generation Address frequently constraining flowgates in the AFC process Address long-standing reliability problems Webre-Wells Sheridan South Base case contingency overloads Terminal equipment limited flowgates Existing inter-area transfer limits EES-SPP (ANO-Ft. Smith) EES-SOCO EES-TVA

Strategic Plan: Goals Tie in with SPP 765kV plans Work with other RTO projects Ozark study Accommodate new generation interconnections Improve existing import limits (Amite South, DSG, WOTAB)

Strategic Plan: Specific Focus Areas Acadiana McAdams Webre-Wells DSG Amite South Arkansas 161 kV Stability Limits Mt. Olive – Hartburg Webre – Wells Franklin – McKnight

Strategic Plan: Specific Focus Areas Danville – N. Magazine Mablevale/Little Rock Import Western Region El Dorado Bogalusa ISES, Whitebluff (possible double transformer contingency)

Strategic Plan: This Year High-level Analysis Thermal & Voltage Analyses N-1-1 in Load Pockets Starting Point for Discussion

Strategic Plan: Future Stability Short Circuit More detailed analysis Production Cost

Economic Upgrades ICT will identify potential economic upgrades based on: frequent TLR’s, frequently constrained flowgates, WPP results, RMR’s, etc. Preliminary Analysis will be posted. ICT will provide an estimate of potential benefits: increased MW flow, reduction in congestion, cost savings, etc. Customers may request a study of a specific upgrade, including a Facility Study. Separate Queue NITSA/Pre-888, PTP Request, IOA/LGIA required to proceed with construction

Economic Upgrades Customers may fund upgrades at their discretion. Any new dispatch made possible by an upgrade will be reflected in models. ICT will report to regulators on Economic Upgrade activities.

Super-Regional Summits Continue to hold Entergy ICT Summit Possibility of Entergy / CLECO / SPP / LAFA / ETEC / Other Transmission Owners Summit Possibility of Entergy / SERC Region Summit

Jody Holland Manager, ICT Planning 501-614-3315 jholland@spp.org