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NOTICE DATE: July 31, 2019

NOTICE TYPE: R-A073119-01 Testing

SHORT DESCRIPTION: Retail Market Qualification Testing (Flight 1019) begins September 17, 2019, initial steps deadline of August 21, 2019 and a registration deadline of September 11, 2019

INTENDED AUDIENCE: Existing and potential new Competitive Retailers (CRs) and Transmission Distribution Service Providers (TDSPs)

LONG DESCRIPTION: ERCOT and the Texas Standard Electronic Transaction (TX SET) Working Group announce preparations are underway for the next round of Retail Market Qualification Testing, Flight 1019. Flight 1019 tests for TX SET Version 4.0 and is scheduled to begin September 17, 2019.

Registration for this Flight will be completed in the FlighTrak system.

Testing is required for:

Participation in Ad Hoc Testing is limited to existing Market Participants (CRs and TDSPs) that did not make the deadline for the actual Flight Test and is subject to Flight Administrator and TDSP approval. Ad Hoc Period testing includes testing additional business functionality, changing service providers, changing banking information, or adding another entity to their business umbrella (adding an entity must follow the New CR schedule for signup).

ACTION REQUIRED: Please see the "Approved Updated 2019 Test Flight Schedule" on Texas Retail Market Testing page for all deadlines for Flight 1019.

Deadlines are:

New CRs participating in Flight 1019 are requested to have their banking information established prior to the Flight deadline, September 11, 2019 at 17:00 CPT.

ADDITIONAL INFORMATION: Available documents for Texas SET Version 4.0 are on ERCOT.com.

"Retail Market Testing Orientation information" is found on the Texas Retail Market Testing page of ERCOT.com.

The Flight Testing information is found in the "Texas Market Test Plan 051819" on the Texas Standard Electronic Transaction Working Group page on ERCOT.com.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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