SCR741

The essence of the request is for ERCOT to set up a data repository that can receive balanced schedules for future operating days for which a market has not yet been opened. As ERCOT opens markets each day the relevant data from the repository would be pulled into ERCOT’s EMMS system.

Basic requirements:

• Allow submission of balanced schedules up to 7 days prior to operating day
• Clearing should remain limited to the next operating day (as we do currently), unless ERCOT needs to clear a two Day Ahead market for reliability reasons.
• The expectation is that this data is not validated until it is pulled from the repository into the EMMS system.

There are several justifications for this capability:

• Market participants would have the ability to input schedules early, allowing this data entry to occur at a time that conflicts least with other business priorities
• It would provide data input flexibility in case of an emergency situation that impacts operations at QSE facilities
• It would allow more flexibility for market participants who have skeleton staffs on weekends and holidays