NOGRR #226 · Revision Request
NOGRR226 Addition of Supplemental UFLS Stages
ReasonAddresses current operational issues
Created2021-06-03
Approved2023-01-26
Sections Affected
2.6.1
Summary
This Nodal Operating Guide Revision Request (NOGRR) adds provisions for Transmission Operator (TO) “anti-stall” automatic firm Load shedding at 59.5 Hz in order to improve reliability by mitigating the risk of a total system-wide Blackout.
Timeline
- May 14 '21
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Jun 3 '21
ROS ROS Meeting by Webex OnlyROSDeferred/Tabled Tabled Referred → DWG Referred → OWG Referred → PDCWG“to table NOGRR226 and refer the issue to the DWG, OWG, and PDCWG” — Passed→ Language Consideration
- Jun 16 '21
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Jun 17 '21
Listed without action at 3 meetings (Jun 17 '21 – Jul 13 '21)
- Aug 5 '21
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Aug 19 '21
Listed without action at 13 meetings (Aug 19 '21 – Feb 7 '22)
- OWG Meeting by Webex Only
- ROS Meeting by Webex Only
- OWG Meeting by Webex Only
- ROS Meeting by Webex Only
- OWG Meeting by Webex Only
- ROS Meeting by Webex Only
- PDCWG Meeting by Webex Only
- OWG Meeting by Webex Only
- ROS Meeting by Webex Only
- OWG Meeting by Webex Only
- ROS Meeting by Webex Only
- OWG Meeting by Webex Only
- ROS Meeting by Webex Only
- Feb 17 '22
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Mar 3 '22
Listed without action at 11 meetings (Mar 3 '22 – Aug 10 '22)
- Aug 18 '22
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Sep 1 '22
ROS ROS MeetingROSRecommended for Approval Recommended for approval Amended by the Aug 31 '22 CenterPoint Energy comments“to recommend approval of NOGRR226 as amended by the 8/31/22 CenterPoint Energy comments as revised by ROS” — Passed→ Impact Analysis
- Sep 14 '22
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Sep 29 '22
ROS ROS Meeting by Webex OnlyROSDeferred/Tabled Tabled“to table NOGRR226” — Passed→ Impact Analysis Consideration
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Nov 7 '22
ROS ROS Meeting by Webex OnlyROSRecommended for Approval Recommended for approval Forwarded → TAC priority 2023 · rank 3900“to endorse and forward to TAC the 9/1/22 ROS Report and 11/1/22 Impact Analysis for NOGRR226, with a recommended priority of 2023 and rank of 3900” — Passed→ Revision Request Consideration
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Nov 11 '22
PRS PRS Meeting by Webex Only“To waive notice for NOGRR226. To endorse the ROS-recommended priority of 2023 and rank of 3900 for NOGRR226”
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Dec 5 '22
TAC TAC MeetingTACRecommended for Approval Recommended for approval Amended by the Nov 30 '22 ERCOT comments“to recommend approval of NOGRR226 as recommended by ROS in the 11/7/22 ROS Report as amended by the 11/30/22 ERCOT comments as revised by TAC; with a proposed effective date of January 20, 2023” — Passed→ Revision Request Consideration
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Dec 20 '22
BOARD Board of Directors MeetingBOARDRecommended for Approval Recommended for approval“to recommend approval of NOGRR226 as recommended by TAC in the 12/5/22 TAC Report with a proposed effective date of January 27, 2023” — Passed→ Revision Request Consideration
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Jan 26 '23
PUCTPUCTApproved Approved“to approve NOGRR226 and accompanying ERCOT Market Impact Statement as presented in Project No. 54445, Review of Rules Adopted by the Independent Organization” — Passed
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Posted since the last meeting