To facilitate discussion this afternoon, I would like to assert my opposition to ERCOT negating trades that were entered correctly in the systems.  Rather, I would prefer to take the following approach:


If the overage in Load Resources providing RRS exist:

1.       ERCOT prorates all LR providers of RRS to the acceptable, with no penalty for short supply.

2.       ERCOT calculates the oversupply of LR by any and all knuckleheads and deducts those overage values from their RRS credit.

3.       Settlements calculates A/S coverage based on the revised values.

4.       The resulting values will also contribute to any RUC Short liability that may exist for the knucklehead as well.


There is probably a lot I’m leaving out, but this was what I was trying to convey at the last meeting.


From: Mereness, Matt [mailto:[log in to unmask]]
Sent: Monday, November 04, 2019 3:00 PM
To: [log in to unmask]
Subject: RTCTF subgroup AS Trades on Thursday Nov 7 (Webex only 2-4pm)


***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. *****


As discussed at the October 30 RTCTF, ERCOT is hosting a WebEx for more input on Ancillary Service Trade logic for RTC implementation.  The meeting and WebEx are as follow:


RTCTF Subgroup Discussion of Ancillary Service Trades by WebEx Only

Thursday, Nov 7, from 2pm-4pm


Apologies for the short notice, and this is one of the two sub-groups to convene before the next RTCTF on November 19th.


Best regards,

Matt Mereness

[log in to unmask]

O: 512.248.3089

M: 512.565.8939




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