1. Role of Account Management at ERCOT MORO CART Strategic Review Meeting Denise E. Taylor, MODPO Facilitator October 6, 2006

2. | October 6, 2006MORO CART Strategic Review Meeting 2 1.AppWorx-EIS Testing Constraint – Results of vendor’s technical input regarding options and resolution strategy Presenters – Dave Farley / Glen Wingerd 2.ERCOT’s IT Infrastructure Environment Architecture Presenter – Dave Farley 3.Daylight Savings Time 2007 Presenter – Dave Farley 4.Synchronization of RO, MO and EIS Release Schedules for 2007 Presenter – Glen Wingerd Page 2 Strategic Review Discussion Topics

3. | October 6, 2006MORO CART Strategic Review Meeting 3 Strategic Review Discussion Strategic Review Discussion AppWorx-EIS Testing Constraint – Results of vendor’s technical input regarding options and resolution strategy Presenters – Dave Farley / Glen Wingerd Page 3

4. | October 6, 2006MORO CART Strategic Review Meeting 4 AppWorx-EIS Testing Constraint  Presenter: Dave Farley  Description/Proposal: AppWorx-EIS Testing Constraint  PPL Impact (if any): Unknown  Desired Outcome: Communication update, additional requirements Page 4

5. | October 6, 2006MORO CART Strategic Review Meeting 5 AppWorx-EIS Testing Constraint Issue Statement –In our testing environments, we require the ability of running multiple, completely separate, instances of batch (same modules and chains) that point to different instances of a database. Discussion –Enterprise License discussions Ongoing 9-26 discussions with AppWorx Given temporary license key good though Dec. ‘06 –AppWorx Problem ID 67113 Created multiple applications and associated each new instance of all modules and chains to its associated application Requested ability to easily configure and migrate What can we do short term? –Review hardware availability within the environment –Purchase additional hardware Page 5

6. | October 6, 2006MORO CART Strategic Review Meeting 6 Strategic Review Discussion ERCOT’s IT Environment Architecture Presenter - Dave Farley Page 6

7. | October 6, 2006MORO CART Strategic Review Meeting 7 ERCOT’S IT Environment Architecture  Presenter: Dave Farley  Description/Proposal: Environment Architecture  PPL Impact (if any): Unknown  Desired Outcome: Communication update, additional requirements Page 7

8. | October 6, 2006MORO CART Strategic Review Meeting 8 Strategic Matrix Environment Requirements ProductionI-TestP-TestDev Physical Design Fully Redundant Stand-Alone HW & Subnet Market Apps must be Stand-Alone HW & Subnet May be Shared w/ Dev as Logical Env May be Shared w/ P- Test as Logical Env Data IntegrityHigh MediumAs Requested Production Connectivity AbsoluteScheduledManualNone Access ControlOperationsRelease MgtDev & RelMgtDev CapacityFull-Size Partial SizeMinimal SLA / RecoveryMission Critical Daily Operations DevelopmentMinimal Page 8

9. | October 6, 2006MORO CART Strategic Review Meeting 9 Reference Architecture Page 9

10. | October 6, 2006MORO CART Strategic Review Meeting 10 P-Test 2 Prime P-Test 2 Prime Environment Vision Dev 2 (SIR) Dev 2 (SIR) P-Test 3 P-Test 3 Mkt Cert (Lode*) Mkt Cert (Lode*) I-Test Prime I-Test Prime Prod Logical Diagram Dev Mgmt. Operations DR / S-Test Above red line “functions like production” Full Sized Partial Sized Logical Owner: Participant Testing Participant Testing Physical P-Test 2 P-Test 2 P-Test 1 P-Test 1 I-Test I-Test Dev n Dev n Dev 1 (Dev) Dev 1 (Dev) Page 10

11. | October 6, 2006MORO CART Strategic Review Meeting 11 Strategic Review Discussion Daylight Savings Time 2007 Presenter - Dave Farley Page 11

12. | October 6, 2006MORO CART Strategic Review Meeting 12 Daylight Savings Time 2007  Presenter: David Farley  Description/Proposal: Daylight Savings Time 2007  PPL Impact (if any): Unknown  Desired Outcome: Request to pursue capital project Page 12

13. | October 6, 2006MORO CART Strategic Review Meeting 13 Daylight Savings Time 2007 Issue Statement –There is a logical change in DST for 2007. Within our systems, instead of creating a list that must be maintained, the code calculates the DST date based on the premise that DST will begin at 2:00 a.m. on the first Sunday of April and end at 2:00 a.m. on the last Sunday of October. –Under legislation enacted in 1986, DST in the USA begins at 2:00 a.m. on the first Sunday of April and ends at 2:00 a.m. on the last Sunday of October –In 2007, DST will begin at 2:00 a.m. on the second Sunday of March and end at 2:00 a.m. on the first Sunday of November Page 13

14. | October 6, 2006MORO CART Strategic Review Meeting 14 Daylight Savings Time 2007 History –The Uniform Time Act of 1966 (15 U.S. Code Section 260a) signed into Public Law 89-387 on April 12, 1966, by President Lyndon Johnson, created Daylight Saving Time to begin on the last Sunday of April and to end on the last Sunday of October. Any State that wanted to be exempt from Daylight Saving Time could do so by passing a state law. –The Uniform Time Act of 1966 established a system of uniform (within each time zone) Daylight Saving Time throughout the U.S. and its possessions, exempting only those states in which the legislatures voted to keep the entire state on standard time. –In 1972, Congress revised the law to provide that, if a state was in two or more time zones, the state could exempt the part of the state that was in one time zone while providing that the part of the state in a different time zone would observe Daylight Saving Time. The Federal law was amended in 1986 to begin Daylight Saving Time on the first Sunday in April. –Under legislation enacted in 1986, Daylight Saving Time in the USA begins at 2:00 a.m. on the first Sunday of April and ends at 2:00 a.m. on the last Sunday of October Page 14

15. | October 6, 2006MORO CART Strategic Review Meeting 15 Daylight Savings Time 2007 Legislation –On August 8, 2005, President George W. Bush signed the Energy Policy Act of 2005. This Act changed the time change dates for Daylight Saving Time in the U.S. Beginning in 2007, DST will begin on the second Sunday of March and end the first Sunday of November. The Secretary of Energy will report the impact of this change to Congress. Congress retains the right to revert the Daylight Saving Time back to the 2005 time schedule once the Department of Energy study is complete Request –Since we will require a patch upgrade to the LODESTAR application, as well as custom code changes and subsequent regression testing based on the change in Federal Law, request this be considered a systems enhancement and capital funds be allocated appropriately. Page 15

16. | October 6, 2006MORO CART Strategic Review Meeting 16 Next Meeting Friday, 10/13/2006 9am-12noon Voting Items (as requested by staff) –PPL planning/review and portfolio changes –CART performance review (financial/schedule/scope) –Project Tollgate requests –Project Change Control requests –Special Requests (needing vote from CART) –Approval of Previous Minutes Questions? Adjourn Page 16 Meeting Wrap-up