Client Data Reports (Zonal)Survey Results

July 18, 2008

Art Deller – WCS

2

CDR Survey

• Summary:

– ERCOT sent a 5 question survey to all current recipients of the CDR files and all QSE Primary contacts. (~147 entities, ~230 QSEs and sub-QSEs)

– 58 Responses, 47 Entities (~20%)

– ERCOT sends 140 CDRs for every statement.

3

Survey Questions

1. ERCOT Client Data Reports continue to be used by my company (True or False).

2. ERCOT may remove our company from the list to receive CDR files (True or False).

3. Our company depends primarily on the Data Extracts downloaded from Texas Market Link (True or False).

4. What measures would your company need to accomplish if the ERCOT CDRs were not available (Please Comment)?

5. Our company will be deploying a business solution for using Nodal Market data extracts (True or False).

4

Results – Question 1

ERCOT Client Data Reports continue to be used by my company

TRUE

FALSE

0

5

10

15

20

25

30

35

40

45

89%

11%

5

Results – Question 2

ERCOT may remove our company from the list to receive CDR files

TRUE

FALSE

0

5

10

15

20

25

30

35

40

45

50

9%

91%

6

Results – Question 3

Our company depends primarily on the Data Extracts downloaded from Texas Market Link

TRUE

FALSE

19

20

21

22

23

24

25

26

54%

46%

7

Results – Question 5

Our company will be deploying a business solution for using Nodal Market data extracts

TRUE

FALSE

0

5

10

15

20

25

30

68%

32%

8

Results – Question 4

• “No additional measures because we primarily rely on Data Extracts”

• “XX does not use the Data Extracts at all. The lack of this information may cause XX to make assumptions that may result in additional and unnecessary disputes.”

• “We would have to revamp our processes which would take time and money.”

• “It will take a business solution to process various information, which is not desirable for us”

• “Nothing, they are just for backup purposes for our Settlements Dept”

9

Results – Question 5

• “We are not planning to deploy our own solution but will do so if necessary.”

• “True -if the extracts are all that will be available.”

• “If Client Data Reports will no longer be provided, we will need to determine a solution for using the extracts.”

• “Nodal business solution has not been determined”

10

Where do we go from here?

• CDRs can not be produced in the Nodal Market due to volume of data, time, security, etc.

• New Settlements MODE and CODE extracts will provide MP’s load, generation and settlements data by Operating Day

• Continue producing CDRs for Zonal Settlements until Zonal market is no longer settled.