1. EDS 3 Release 5 and 6 Friday Market Updates Jan 23, 20091

2. Focused Input Testing Update Q&A / Open Forum (including API Subgroup)
Agenda
Antitrust Admonition
Updates / Reminders
Focused Input Testing Update
Q&A / Open Forum (including API Subgroup)
Roll Call 2

3. Antitrust Admonition ANTITRUST ADMONITION
ERCOT strictly prohibits Market Participants and their employees who are participating in ERCOT activities from using their participation in ERCOT activities as a forum for engaging in practices or communications that violate the antitrust laws. The ERCOT Board has approved guidelines for members of ERCOT Committees, Subcommittees and Working Groups to be reviewed and followed by each Market Participant attending ERCOT meetings. If you have not received a copy of these Guidelines, copies are available at the Client Relations desk. Please remember your ongoing obligation to comply with all applicable laws, including the antitrust laws. 3

4. Updates / Reminders Unplanned Environment Outages
1/18 – 1/19 – Sandbox server certificate expired along with ERCOT public key. The public key only affected those that are verifying the ERCOT signature on synch responses and notifications. The updated public key is located at:
1/18 – Present – Market Manager Query Capability not functioning. Certificate used to validate EIS responses (public key) expired. This will be resolved EOB 1/22.
Planned Outages
2/1 (Sunday Morning – 2pm) – Firewall maintenance on the EDS environment. All market submissions will fail during this period.
UPDATE: EDS Program Schedule Update
COMPLETE: Preliminary Nodal Integrated Schedule released
COMPLETE: TAC initial review 12/4/08
COMPLETE: TPTF initial review 12/10/08 3:30-5:30pm (WebEx) Materials:
COMPLETE: TPTF detailed discussion on 12/16 Materials:
COMPLETE: TPTF all day workshop on 1/07 Materials:
COMPLETE: TPTF session Monday 1/12 in the afternoon continuing Tuesday 1/13 all day Materials:
TPTF session 1/26 – continued discussions on the Nodal Integrated schedule Agenda to be posted at: 4

5. Focused Input Testing Update
ALL TIMES ARE CENTRAL
Duration
Start date and time
End date and time
27 hrs
(3x9)
January :00 am
January :00 pm
February :00 am
February :00 pm
February :00 am
February :00 pm
March :00 am
March :00 pm
March :00 am
March :00 pm
Next testing will take place 1/27 – 1/29
FIT II Assessment reports will be posted at:
Reminder: remaining FIT windows will only review telemetry and state estimator convergence. SCED inputs will be removed from FIT until further notice. 5

6. Q&A
Q&A / Open Forum 6