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RTCTF participants,

We appreciate your review of the materials that Dave Maggio and team posted last week from the May 13th meeting.  We offer 2 deadlines in preparation for the Friday June 7th meeting.


Friday May 31:  Seven day deadline for submitting comments and alternatives  ahead of June 7th meeting.

-          Key Principle 1.4 – Systems that Input into the Real-Time Optimization (Resource Limit Calculator)

-          Key Principle 1.5 – Process for Deploying Ancillary Services (Load Frequency Control, Resource Specific Deployment, AS Manager to use RTC for AS responsibility)

-          Key Principle 1.6 – Ancillary Service Imbalance Settlement with RTC

-          Key Principle 3 – Reliability Unit Commitment

-          Key Principle 4 – The Supplemental Ancillary Service Market Process (retirement)


Friday May 24:  Soft deadline for any comments or questions where participants will be looking for additional clarification or information from ERCOT staff ahead of the meeting on June 7th. 


Please submit any materials and questions to [log in to unmask] and [log in to unmask].


Thanks for the support,



Matt Mereness

ERCOT Compliance Director

[log in to unmask]

O: 512.248.3089

M: 512.565.8939




From: Maggio, Dave
Sent: Wednesday, May 15, 2019 5:51 PM
To: [log in to unmask]
Cc: Mereness, Matt <[log in to unmask]>
Subject: Formatted RTC Principle Concepts Posted for Comment


Per the RTCTF meeting this past Monday, ERCOT has posted the principle concepts points for review and comment.  All of the documents are posted on the meeting page for this last Monday’s meeting in the zip file titled “RTC Key Principles 051519” (http://www.ercot.com/calendar/2019/5/13/179716-RTCTF).


There are two primary places for people to focus their review when looking at the documents.  First is the key principle sentence at the top at the page.  This is the high-level principle statement.  Second is the set of bullets under the header “Principle Concepts for Voting.”   This is the section that captures the key points that were discussed during the last meeting.   Please note that the document for SASM only has the first of these two sections. 


The remaining sections in the documents will be used to capture issues for future discussion and, eventually, capture principle concepts where there has already been an affirmative vote from TAC.


For any comments on the key principles or principle concepts, please track your changes in the posted files and send those documents to myself and Matt Mereness ([log in to unmask]).  Otherwise, let Matt and I know if you have any questions.





Dave Maggio

Sr. Manager, Market Analysis & Validation

2705 West Lake Drive | Taylor, TX 76574

O: 512-248-6998 | M: 773-458-3215 


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