March Summary:CR Data Extract Variance Reporting

February CR DEV Reporting

• 5 of 115 Competitive Retailers reported numbers by the due date for February Reports (03/02/06).

• 3 of 12 Competitive Retailers that filed DEV Issues within the 90 days proceeding the reporting deadline reported numbers.

• Numbers for April RMS (March Reports) are due by April 4, 2006.

TOTALS

Non-ERCOT Service History ESI IDs submitted

Non-ERCOT Usage Non IDR ESI IDs submitted

Non-ERCOT Usage IDR ESI IDs submitted

ERCOT LSE Relationship ESI IDs submitted

In Progress < 75 days 13,829 3,951 495 2,985

In Progress > 75 days 92,305 7,391 1,763 35,146

Resolved < 75 days resulting in change 25,297 19,329 835 111,505

Resolved < 75 days no change 135,916 47,916 1,892 20,753

Resolved > 75 days resulting in change 958 8,172 728 3,176

Resolved > 75 days no change 1,443 16,429 761 53

AEP

Non-ERCOT Service History ESI IDs submitted

Non-ERCOT Usage Non IDR ESI IDs submitted

Non-ERCOT Usage IDR ESI IDs submitted

ERCOT LSE Relationship ESI IDs submitted

In Progress < 75 days 115 2,838 29 88

In Progress > 75 days 3,515 846 75 1,477

Resolved < 75 days resulting in change 163 4,253 61 532

Resolved < 75 days no change 948 1,956 287 4,243

Resolved > 75 days resulting in change 177 1,782 4 3

Resolved > 75 days no change 455 687 119 19

CenterPoint

Non-ERCOT Service History ESI IDs submitted

Non-ERCOT Usage Non IDR ESI IDs submitted

Non-ERCOT Usage IDR ESI IDs submitted

ERCOT LSE Relationship ESI IDs submitted

In Progress < 75 days 164 37 46 203

In Progress > 75 days 1,171 327 124 1,164

Resolved < 75 days resulting in change 45 5,363 91 676

Resolved < 75 days no change 484 1,822 223 6,155

Resolved > 75 days resulting in change 41 4,000 58 2

Resolved > 75 days no change 104 618 116 16

TXU Electric Delivery

Non-ERCOT Service History ESI IDs submitted

Non-ERCOT Usage Non IDR ESI IDs submitted

Non-ERCOT Usage IDR ESI IDs submitted

ERCOT LSE Relationship ESI IDs submitted

In Progress < 75 days 13,538 1,073 415 2,678

In Progress > 75 days 87,523 5,935 1,561 32,281

Resolved < 75 days resulting in change 25,083 9,641 683 110,108

Resolved < 75 days no change 134,467 43,488 1,371 9,443

Resolved > 75 days resulting in change 730 2,299 666 3,169

Resolved > 75 days no change 858 14,408 508 14

Sharyland

Non-ERCOT Service History ESI IDs submitted

Non-ERCOT Usage Non IDR ESI IDs submitted

Non-ERCOT Usage IDR ESI IDs submitted

ERCOT LSE Relationship ESI IDs submitted

In Progress < 75 days 0 0 0 0

In Progress > 75 days 0 0 0 0

Resolved < 75 days resulting in change 0 0 0 0

Resolved < 75 days no change 0 0 0 0

Resolved > 75 days resulting in change 0 0 0 0

Resolved > 75 days no change 0 0 0 0

TNMP

Non-ERCOT Service History ESI IDs submitted

Non-ERCOT Usage Non IDR ESI IDs submitted

Non-ERCOT Usage IDR ESI IDs submitted

ERCOT LSE Relationship ESI IDs submitted

In Progress < 75 days 5 3 5 16

In Progress > 75 days 96 283 3 224

Resolved < 75 days resulting in change 6 72 0 186

Resolved < 75 days no change 17 650 11 909

Resolved > 75 days resulting in change 10 91 0 2

Resolved > 75 days no change 26 716 18 4