DEWG Jackie Ashbaugh ERCOT

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Presentation transcript:

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

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 08/26/2003 11:21:43 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

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

Questions? 08/27/2007