1.

R. Comstock

9:30 a.m.

2.

Approval of the Draft April 7, 2005 Meeting Minutes (Vote)*

R. Comstock

9:35 a.m.

3.

ERCOT Board Update

R. Comstock

9:40 a.m.

4.

Potomac Recommendations Monthly Update*

N. Lopez

9:50 a.m.

5.

ERCOT Reserve Margin/Generation Adequacy Recommendations (Vote)*

• Treatment of Mothballed Units
• Treatment of DC Ties

H. Durrwachter

10:00 a.m.

6.

Protocol Revisions Subcommittee Report *

• Status of 2005 Projects
• 2006 Capital Budget Timeline
• Protocol Revision Requests
  • PRR 555  -- Modify Number of Sub-QSEs a Single Entity Can Partition (Vote)*
  • PRR 564 -- Clarification of OOME Definition (Vote)*
  • PRR 572 -- Weather Sensitivity Classification(Vote)*
  • PRR 575 -- Mandatory Down Balancing Ramp Rate(Vote)*
  • PRR 576 -- Disclosure of OOME, OOMC, and RMR Service (Vote)*
  • PRR 591 -- Switchable Unit Declaration (Vote)*
  • PRR 594 -- Replacement Reserve Service Payment Formulas (Vote)*
  • PRR 596 -- Mothballed Generation Resource Estimated Return to Service Dates (Vote)*

K. Gresham

11:00 a.m.

Lunch

12:00 p.m.

7.

Revised TAC Procedures (Vote)*

C. Moseley

1:00 p.m.

8.

Retail Market Subcommittee Report*

• SCR 742 -- Automated Retail Transaction Verification (Vote)*
• RMGRR 019 -- Estimated Meter Readings (Vote)*
• Residential Survey for Annual Validation (Vote)*

T. Weathersbee

1:30 p.m.

9.

Commercial Operations Subcommittee Report*

J. Briscoe

2:00 p.m.

10.

Reliability and Operations Subcommittee Report *

R. Keetch

2:15 p.m.

11.

Wholesale Market Subcommittee Report*

B. Helton

2:30 p.m.

12.

Operations Update*

• Update on RMR

S. Jones

2:45 p.m.

13.

Texas Nodal Team Update *

J. Galvin

3:15 p.m.

14.

TAC ADR Taskforce Update*

S. McClendon

3:45 p.m.

15.

Other Business

R. Comstock

4:00 p.m.

16.

Adjourn

R. Comstock

4:30 p.m.

Future TAC Meetings

• May 6, 2005 (Special TAC Meeting)
• June 9, 2005
• July 7, 2005