1. DEWG Jackie Ashbaugh ERCOT
Market Data Transparency ESIID Service History & Usage Extract Re-baselines
DEWG
Jackie Ashbaugh
ERCOT
08/27/2007

2. SCR 727 ESIID Service History & Usage Extract Background
SCR 727 ESIID Service History & Usage Extract History
October 2003 – January 2004 extract files provided
Historical file made available for CRs, TDSPs and MREs containing all records owned by the MP with ADDTIMEs through 08/26/ :21:43 for data records with a STOPTIME > 07/30/2001
Incremental 1 file
Additional ESIIDUSAGE file
Additional ESIIDSERVICEHIST_DELETE file
LSCHANNELCUTHEADER and DATA replacement file
Incremental 2 file
Daily range file for 12/2/2003 – 12/18/2003
Dim_Sync file to baseline public tables
Daily 12/19/2003 forward to current
LSCHANNELCUTDATA incremental format file
Contains all service history and usage data with STOPTIME > 2001 to date for ESIIDs owned by MP
08/27/2007

3. SCR 727 ESIID Service History & Usage Extract Re-baselines
SCR 727 ESIID Service History & Usage Extract Re-baseline requests
Currently, for MPs to re-baseline their SCR 727 databases, all extract files must be requested and reloaded from 2003 (or applicable date) to current <4 years of files>
SCR 740 – Market Data Transparency (ESIID Web Services)
Go-Live 4/26/2007
Outstanding defect with extract refresh web service to compile and compress CSVs
Designed to provide all service history and usage data for ESIIDs owned by MP
Web Service to be made available for MPs to request one time per calendar year
Re-baseline files will be available for 10 days only
Considerations and Questions:
Do MPs need all service history and usage data for ESIIDs owned by MP?
18 months of consecutive usage is needed to calculate the profile
12 months of usage is needed for data aggregation
Any concerns with the amount of data that would have to be downloaded/uploaded?
If the date range for the amount of data that ERCOT provides in the re-baselines is changed, there would be a change on the daily extract to provide inserted/deleted/changed data for the same date range.
How often should this be evaluated by DEWG?
08/27/2007

4. Questions?
08/27/2007