ERCOT·WATCH Search ercot.com  ⌕

Revision Requests

288 of 2394 shown
Type
Status All Pending Approved Rejected Withdrawn
⚑ Urgent only
Title Sponsor Next Filed Last action ▴
NOGRR016 Nodal Operating Guides - Section 8 - Attachment I, Security, Facilities, and Connectivity Requirements of WAN Systems OGRTF Rejected Jun 21 '07 Sep 13 '07
NOGRR017 Nodal Operating Guides - Section 8 - Attachment J, ERCOT Data Sets OGRTF Rejected Jun 21 '07 Sep 13 '07
NOGRR001 Nodal Operating Guides - Section 1, Overview Operating Guides... Approved Jun 21 '07 Oct 5 '07
NOGRR003 Nodal Operating Guides - Section 3, Resource Testing and Qualification Procedures Operating Guides... Approved Jun 21 '07 Oct 5 '07
NOGRR004 Nodal Operating Guides - Section 4, Emergency Operation OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR005 Nodal Operating Guides - Section 5, Planning OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR006 Nodal Operating Guides - Section 6, Disturbance Monitoring and System Protection OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR007 Nodal Operating Guides - Section 7, Telemetry and Communication OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR008 Nodal Operating Guides - Section 8 - Attachment A, Detailed Black Start Information OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR009 Nodal Operating Guides - Section 8 - Attachment B, Relay Misoperation Report OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR010 Nodal Operating Guides - Section 8 - Attachment C, Turbine Governor Speed Tests OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR011 Nodal Operating Guides - Section 8 - Attachment D, Seasonal Unit Net Real Power Capability Verification OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR012 Nodal Operating Guides - Section 8 - Attachment E, Biennial Unit Reactive Limits (Lead and Lag) Verification OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR013 Nodal Operating Guides - Section 8 - Attachment F, Seasonal Hydro Responsive Reserve Net Capability Verification OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR014 Nodal Operating Guides - Section 8 - Attachment G, Load Resource Tests OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR015 Nodal Operating Guides - Section 8 - Attachment H, Unit Alternative Fuel Capability OGRTF Approved Jun 21 '07 Oct 5 '07
NOGRR002 Nodal Operating Guides - Section 2, System Operations and Control Requirements Operating Guides... Approved Jun 21 '07 Feb 7 '08
NOGRR018 Synchronization of OGRR204, Hotline Technology Update OGRTF Approved Mar 3 '08 Jun 26 '08
NOGRR019 Synchronization of OGRR206, Black Start Satellite Phones OGRTF Approved Mar 3 '08 Jun 26 '08
NOGRR020 Synchronization of OGRR198, Firm Load Shed Implementation Time Periods OGRTF Approved Apr 16 '08 Aug 7 '08
NOGRR021 Synchronization of OGRR205, Modify Responsive Reserve Service Obligation OGRTF Approved Apr 16 '08 Aug 7 '08
NOGRR022 EECP Media Appeal Change John Jonte on behalf... Approved Jul 22 '08 Jan 8 '09
NOGRR023 Hotline Changes for QSEs Representing Multiple Entities ERCOT Approved Nov 20 '08 Mar 5 '09
NOGRR024 System Security Response Group (SSRG) ERCOT Rejected Dec 9 '08 Apr 16 '09
NOGRR025 ! Monitoring Programs for QSEs, TSPs, and ERCOT ERCOT Approved Feb 6 '09 Sep 15 '09
NOGRR030 ! Synchronization -- Total Transmission Capacity Correction ERCOT Approved Sep 3 '09 Oct 1 '09
NOGRR026 Change the name of Emergency Electric Curtailment Plan (EECP) to Energy Emergency Alert (EEA) and Synchronization of EEA Steps with Protocols Colleen Frosch Approved Jul 13 '09 Nov 5 '09
NOGRR029 Synchronization of OGRR224, Special Protection System (SPS) Operations Under No Contingency John Dumas Approved Sep 2 '09 Jan 6 '10
NOGRR031 Synchronization with OGRR218, Revise Training Requirements for QSEs Shell Energy Approved Oct 9 '09 Feb 4 '10
NOGRR027 Revise the Process for Submitting Biennial Unit Reactive Limits (Lead and Lag) LCRA Approved Jul 17 '09 Apr 8 '10
NOGRR032 Use of Consistent Rating Terminology NDSWG Approved Dec 3 '09 May 6 '10
NOGRR033 Alignment with NPRR203, Amend Telemetry Bus Accuracy Requirements Ebby John on behalf... Approved Dec 22 '09 May 6 '10
NOGRR040 Administrative Changes for June 1, 2010 Nodal Operating Guides ERCOT Approved May 14 '10 May 14 '10
NOGRR028 Synchronization - Backup Control Plan Submission Process OWG Approved Aug 14 '09 Jul 1 '10
NOGRR035 Synchronization -- Special Protection System Monitoring Requirements ERCOT Approved Feb 17 '10 Jul 1 '10
NOGRR036 Synchronization with PRR821 and PRR804 ERCOT Approved Mar 19 '10 Jul 1 '10
NOGRR037 Synchronization with OGRR217, Relay Misoperation Report Format Change Glenn Hargrave on... Approved Mar 23 '10 Jul 1 '10
NOGRR038 Synchronization with OGRR243, Disturbance Monitoring Requirements Clarification SPWG Approved Mar 26 '10 Aug 5 '10
NOGRR039 Synchronization of Section 1 with Nodal Protocols NOGRRTF Approved May 10 '10 Sep 2 '10
NOGRR034 Rescind Telemetry Performance Calculation Exclusions ERCOT Approved Jan 22 '10 Sep 21 '10
NOGRR041 Synchronization of Section 2 with Nodal Protocols NOGRRTF Approved May 27 '10 Oct 7 '10
NOGRR042 Synchronization of Section 3 with Nodal Protocols NOGRRTF Approved May 27 '10 Oct 7 '10
NOGRR043 Synchronization with OGRR208,Voltage Ride-Through (VRT) Requirement Warren Lasher Approved Jun 4 '10 Oct 7 '10
NOGRR045 Synchronization of OGRR219, Time Error Correction ERCOT Approved Jun 10 '10 Oct 7 '10
NOGRR046 Synchronization of Sections 4 and 5 with Nodal Protocols NOGRRTF Approved Jun 11 '10 Oct 7 '10
NOGRR047 Synchronization of Sections 6 and 7 with Nodal Protocols Brad Calhoun on... Approved Jun 24 '10 Oct 7 '10
NOGRR051 ! Synchronization with OGRR192 and OGRR238 ERCOT Approved Aug 17 '10 Oct 7 '10
NOGRR053 ! Synchronization with OGRR226, Generation Resource Response Time Requirement Frank Owens on... Approved Sep 15 '10 Oct 7 '10
NOGRR048 ! Synchronization with OGRR240, CREZ Facility Protection and Control Requirements AEPSC Approved Jul 23 '10 Nov 4 '10
NOGRR049 Alignment with NERC Reliability Standard PRC-001-1, System Protection Coordination SPWG Approved Aug 6 '10 Dec 6 '10
NOGRR059 Administrative Changes for March 1, 2011 Nodal Operating Guides ERCOT Approved Feb 1 '11 Feb 1 '11
NOGRR044 Clarification of a PSS In-Service and Improved Communication Process for Changes in PSS Status (formerly "Clarification of a PSS In-Service") LCRA Approved Jun 3 '10 Feb 3 '11
NOGRR057 ! Daily Report Containing Loss of Generation Greater than 450 MW LCRA Approved Jan 6 '11 Mar 22 '11
NOGRR055 Deletion of an Invalid Reference to a Non-Existent NERC Term ERCOT Approved Dec 21 '10 Apr 7 '11
NOGRR062 ! Require Voltage Ride-Through Capability for IRRs ERCOT Approved Mar 3 '11 Apr 7 '11
NOGRR056 Synchronization with NPRR291, Reduce the Comment Period for NPRRs and SCRs ERCOT Approved Dec 27 '10 May 5 '11
NOGRR072 Administrative Changes for June 1, 2011 Nodal Operating Guides ERCOT Approved May 16 '11 May 16 '11
NOGRR054 Change in Facilitator for the Annual Operations Training Seminar CenterPoint Energy Approved Dec 21 '10 May 17 '11
NOGRR065 Authorize ERCOT to Procure Additional RRS During Severe Cold Weather TNMP Withdrawn Mar 9 '11 May 18 '11
NOGRR052 Conductor/Transformer Transmission Facility Rating ERCOT Approved Sep 9 '10 Jun 2 '11
NOGRR060 Updating the Term Resource Plan to Current Operating Plan Luminant Energy Approved Feb 1 '11 Jun 2 '11
NOGRR061 Posting Requirement for Hydro-Responsive Testing ERCOT Approved Feb 4 '11 Jun 2 '11
NOGRR063 Additional Method for Submitting Back-up Control Plans ERCOT Approved Mar 4 '11 Jul 7 '11
NOGRR064 QSE Acknowledgement of VSS Dispatch Instructions Luminant Energy Approved Mar 8 '11 Jul 7 '11
NOGRR066 ERCOT WAN Connection Termination Requirement Luminant Energy Approved Mar 9 '11 Jul 7 '11
NOGRR068 ! Hydro-Responsive Reserve ERCOT Approved Mar 31 '11 Jul 7 '11
NOGRR075 Synchronization with NPRR363, Revision to EEA Level 2B ERCOT Requirements During the EILS VDI APX Power Markets Rejected May 19 '11 Aug 11 '11
NOGRR058 Deletion of Section 5, Planning Rob Lane on behalf... Approved Jan 18 '11 Sep 1 '11
NOGRR069 ! Relay Misoperation Reporting Changes for Consistency with ERO-RAPA Proposal SPWG Approved Apr 6 '11 Sep 1 '11
NOGRR070 Synchronization with NPRR356, EEA Changes Related to Dispatch Instructions and BLTs ERCOT Approved May 4 '11 Sep 1 '11
NOGRR071 Synchronization with NPRR362, Changes to PRC Calculation ERCOT Approved May 4 '11 Sep 1 '11
NOGRR073 Entity Responsible for Load Shed During EEA Level 3 Frank Owens on... Withdrawn May 17 '11 Sep 1 '11
NOGRR079 Administrative Changes for the October 1, 2011 Nodal Operating Guides ERCOT Approved Sep 12 '11 Sep 12 '11
NOGRR067 Review and Analysis of Turbine Speed Governor Performance Luminant Approved Mar 10 '11 Oct 6 '11
NOGRR076 Synchronization with NPRR298 and New Format for Black Start Plans Black Start Working... Approved Jul 5 '11 Oct 6 '11
NOGRR077 Synchronization with NPRR379, EILS Dispatch Sequence and Performance Criteria Upgrades ERCOT Approved Jul 5 '11 Oct 6 '11
NOGRR078 Real-Time Security Analysis Language Clean Up to Reconcile Operating Guides with Current Operation Practice Luminant Energy Withdrawn Sep 7 '11 Oct 19 '11
NOGRR074 Clarified Responsible Entities for Reporting Sabotage Information to NERC Frank Owens on... Approved May 18 '11 Dec 1 '11
NOGRR082 ! Synchronization with NPRR258 and Alignment of Primary Frequency Response Test Procedures ERCOT Approved Oct 7 '11 Dec 1 '11
NOGRR087 ! Reinsertion of Network Operations Modeling Requirements Planning Working Group (PLWG) Approved Nov 30 '11 Jan 5 '12
NOGRR080 Inadvertent Interchange and Inadvertent Energy Clarification Frank Owens on... Approved Sep 21 '11 Feb 2 '12
NOGRR081 Synchronization with NPRR374, Modification of SCR Process and Urgency Requirements ERCOT Approved Oct 4 '11 Feb 2 '12
NOGRR083 Removal of Reporting Requirements for Vegetation-Related Line Outages OWG Approved Oct 10 '11 Feb 2 '12
NOGRR085 Replace TML References with MIS ERCOT Approved Nov 1 '11 Mar 1 '12
NOGRR090 Change in Entity Responsible for Reporting Participation in Severe Weather Drills Operations Working... Approved Jan 10 '12 Apr 5 '12
NOGRR094 Administrative Changes for June 1, 2012 Nodal Operating Guides ERCOT Approved May 2 '12 May 2 '12
NOGRR084 Daily Grid Operations Summary Report Jackie Ashbaugh on... Approved Oct 27 '11 May 15 '12
NOGRR088 Synchronization with NPRR424, Reactive Capability Testing Requirements for IRRs ERCOT Approved Dec 12 '11 Jun 7 '12
NOGRR092 ! Synchronization with NPRR451 ERCOT Approved Apr 5 '12 Jun 7 '12
NOGRR089 Clarification of Responsibilities for Black Start Resources and QSEs Luminant Approved Dec 14 '11 Jun 28 '12
NOGRR103 Administrative Changes for October 1, 2012 Nodal Operating Guides ERCOT Approved Aug 27 '12 Aug 27 '12
NOGRR086 Clarification of Seasonal Unit Capability Testing Requirements ERCOT Approved Nov 1 '11 Sep 7 '12
NOGRR091 Criteria for the Selection of Operators ERCOT Approved Apr 4 '12 Sep 7 '12
NOGRR096 Clarification of RRS Obligation the Nodal Protocol... Approved May 22 '12 Sep 7 '12
NOGRR097 New Section 8I, Black Start Resource Availability Test Form ERCOT Approved May 25 '12 Sep 7 '12
NOGRR098 Change of Facility Submission Time Lines to Align with Protocols ERCOT Approved May 25 '12 Sep 7 '12
NOGRR099 ! SPS Procedure Changes for Consistency with NERC Reliability Standards NPGRTF Withdrawn May 30 '12 Sep 7 '12
NOGRR100 Extending Manual Time Error Correction Threshold ERCOT Approved Jun 13 '12 Oct 4 '12
NOGRR095 ! Type 2 Special Protection System Submissions Calpine Rejected May 10 '12 Nov 1 '12
NOGRR093 Synchronization with NPRR365 OWG Approved May 1 '12 Nov 13 '12
NOGRR104 Removal of Transmission Operator Definition From the Nodal Operating Guide ERCOT Withdrawn Oct 10 '12 Nov 14 '12
NOGRR106 Delegation of Firm Load Shedding Responsibility Bryan Texas Utilities Withdrawn Oct 30 '12 Nov 14 '12
NOGRR102 Synchronization with NPRR454, Removal of Unfunded Project List Language ERCOT Approved Jul 31 '12 Nov 29 '12
NOGRR108 QSE and TSP Hotline Responsibilities ERCOT Approved Dec 3 '12 Mar 7 '13
NOGRR101 Market Transparency for DC Tie Outage Information Tenaska Power Services Co. Approved Jul 26 '12 Mar 19 '13
NOGRR105 Generation Resource Frequency Response Test Procedure Performance,... Approved Oct 30 '12 Mar 19 '13
NOGRR107 Disturbance Monitoring Requirements Clarification SPWG Approved Nov 12 '12 May 2 '13
NOGRR117 Administrative Changes for June 1, 2013 Nodal Operating Guides ERCOT Approved May 9 '13 May 9 '13
NOGRR119 ! Revisions to Load Shed Table ERCOT Approved Jun 18 '13 Jul 2 '13
NOGRR112 Synchronization with NPRR517, Revisions to the Telemetry Standards and State Estimator Standards Approval Process ERCOT Approved Apr 2 '13 Sep 5 '13
NOGRR115 Update to List of CREZ Circuits and Stations OWG Approved Apr 26 '13 Sep 5 '13
NOGRR118 Hydro Responsive Test Reporting ERCOT Approved Jun 3 '13 Sep 5 '13
NOGRR120 Black Start Plan Template Revision BSWG Approved Jul 2 '13 Oct 3 '13
NOGRR111 Synchronization with NPRR527, Required Combined Cycle Telemetry for Operational Awareness and PDCWG Analysis ERCOT Approved Apr 2 '13 Nov 7 '13
NOGRR113 Synchronization with NPRR536, ERS Time Obligation Certainty Tim Carter on behalf of DSWG Approved Apr 25 '13 Dec 3 '13
NOGRR121 ERCOT Operator Certification Program and ERCOT Fundamentals Manual ERCOT Approved Aug 9 '13 Dec 3 '13
NOGRR122 CRR Network Model Clarification for Accepted Outages ERCOT Approved Aug 16 '13 Dec 3 '13
NOGRR126 Deletion of the Regulatory Required Incident and Disturbance Reports ERCOT Withdrawn Dec 16 '13 Jan 27 '14
NOGRR109 Revisions to Definition of Credible Single Contingency for Operations Planning Operations Working... Approved Mar 5 '13 Jan 28 '14
NOGRR110 Synchronization with NPRR529, Congestion Management Plan ERCOT Approved Mar 6 '13 Jan 28 '14
NOGRR114 Synchronization with NPRR540, Clarification of Credible Single Contingency Frank Owens on behalf of OWG Approved Apr 25 '13 Jan 28 '14
NOGRR116 Synchronization with NPRR542, Clarification of the Use of Emergency Condition Operations Working... Approved Apr 30 '13 Jan 28 '14
NOGRR123 Revisions to Misoperations Reporting Requirements OWG Approved Aug 29 '13 Jan 28 '14
NOGRR125 Minimum Notice for Coordinated Reactive Testing Luminant Approved Sep 27 '13 Jan 28 '14
NOGRR128 Administrative Changes for March 1, 2014 Nodal Operating Guides ERCOT Approved Feb 15 '14 Feb 15 '14
NOGRR127 ! Synchronization with NPRR564, Thirty-Minute Emergency Response Service (ERS) and Other ERS Revisions ERCOT Approved Jan 21 '14 Feb 27 '14
NOGRR124 Additional VRT Requirement for IRRs ERCOT Approved Aug 30 '13 Apr 24 '14
NOGRR130 ! Alignment with NPRR555 and NPRR434 ERCOT Approved Mar 13 '14 Apr 24 '14
NOGRR133 Administrative Changes for the June 1, 2014 Nodal Operating Guides ERCOT Approved May 14 '14 May 14 '14
NOGRR129 Implement Operational Preparedness for Geomagnetic Disturbances GMDTF Approved Mar 12 '14 Jun 26 '14
NOGRR131 Clarification for Generation Resources During an EEA ERCOT Approved Apr 30 '14 Jul 31 '14
NOGRR134 Posting Process for Black Start Plans ERCOT Approved May 22 '14 Aug 28 '14
NOGRR141 Administrative Changes for December 1, 2014 Nodal Operating Guides ERCOT Approved Nov 10 '14 Nov 10 '14
NOGRR137 Rescind NOGRR034 and Maintain Current Telemetry Performance Reporting Practices ERCOT Approved Aug 25 '14 Nov 20 '14
NOGRR140 ! Posting of the ERCOT Geomagnetic Disturbance Operating Plan CenterPoint Energy Approved Nov 4 '14 Jan 29 '15
NOGRR132 Automatic Under-Voltage and Under-Frequency Load Shedding Protection Systems --Load Restoration ERCOT Approved May 13 '14 Feb 26 '15
NOGRR136 Verifying QSE Capability to Operate in CFC ERCOT Approved Jul 30 '14 Feb 26 '15
NOGRR139 Under/Over-Frequency Relaying Requirements ERCOT Approved Sep 30 '14 Mar 26 '15
NOGRR135 Constraint Management During Energy Emergency Alert ERCOT Approved Jul 23 '14 Apr 23 '15
NOGRR138 Delete Grey Box for Reporting of Back-up Control Plan Submittal MIS User Group Approved Sep 24 '14 Apr 23 '15
NOGRR142 Phasor Measurement PMTF Approved Dec 17 '14 May 28 '15
NOGRR148 Administrative Changes for August 1, 2015 Nodal Operating Guides ERCOT Approved Jul 8 '15 Jul 8 '15
NOGRR144 Incorporation of “Manual Deployment and Recall of Responsive Reserve Service during Scarcity Conditions” into the Nodal Operating Guides ERCOT Approved Apr 24 '15 Jul 30 '15
NOGRR145 Alignment with NPRR705, Provides Consistency for References to the End Date of the Generation Interconnection Process ERCOT Approved May 20 '15 Dec 16 '15
NOGRR146 Clarifying ERCOT Actions During Energy Emergency Alerts ERCOT Approved May 26 '15 Dec 16 '15
NOGRR147 Reactive Power Testing Requirements Luminant Approved Jun 29 '15 Feb 9 '16
NOGRR143 Alignment of Nodal Operating Guides with NERC Reliability Standard, BAL-001-TRE-1 PDCWG Approved Apr 6 '15 Feb 25 '16
NOGRR152 Restore Synchrony Between Contingency Planning for Minimum Level of Responsive Reserve Service and Real Time Contingency Analysis Apex CAES, LLC,... Rejected Jan 6 '16 Apr 7 '16
NOGRR151 Alignment with NPRR748, Revisions associated with COM-002-4 and Other Clarifications Associated with Dispatch Instructions ERCOT Approved Nov 25 '15 Apr 28 '16
NOGRR153 Maintenance of Duplicate EEA Language via Alignment NOGRR Process ERCOT Approved Jan 27 '16 Apr 28 '16
NOGRR157 Administrative Changes for June 1, 2016 Nodal Operating Guides – Load Shed Table ERCOT Withdrawn May 16 '16 May 16 '16
NOGRR050 ! Resolution of Reporting Issues Related to NPRR219 DeAnn Walker on... Approved Aug 12 '10 Jun 14 '16
NOGRR160 Administrative Changes for July 1, 2016 Nodal Operating Guide – Load Shed Table ERCOT Approved Jun 15 '16 Jun 15 '16
NOGRR161 Administrative Changes for July 1, 2016 Nodal Operating Guide – Section 21 Alignment ERCOT Approved Jun 16 '16 Jun 16 '16
NOGRR156 Alignment with NPRR762, Removal of Language Related to Responsive Reserve Provided by DC Ties ERCOT Approved Mar 18 '16 Jun 29 '16
NOGRR163 Administrative Changes for August 1, 2016 Nodal Operating Guide – Load Shed Table ERCOT Approved Jul 15 '16 Jul 15 '16
NOGRR155 Voltage Ride-Through Requirements Clarification ERCOT Approved Mar 9 '16 Jul 28 '16
NOGRR150 Alignment with NPRR747, Revision of Voltage Control Requirements ERCOT Approved Nov 25 '15 Aug 25 '16
NOGRR158 Alignment with Protocol Limits on RRS Provided by Hydro Resources ERCOT Approved May 25 '16 Aug 25 '16
NOGRR154 Alignment with NPRR755 and Requirements for ERCOT WAN Installation and Exchange of Resource-Specific XML Data ERCOT Approved Jan 27 '16 Oct 27 '16
NOGRR159 Alignment with NPRR779, Clarifies References to Texas Reliability Entity and Independent Market Monitor ERCOT Approved May 27 '16 Oct 27 '16
NOGRR162 Process for Resolving Real-Time Data Discrepancies ERCOT Approved Jul 6 '16 Dec 1 '16
NOGRR164 ! Alignment with NPRR792, Removing Special Protection System (SPS) and adding Remedial Action Scheme (RAS) ERCOT Approved Jul 27 '16 Dec 15 '16
NOGRR165 Emergency Operations Plans as Required by NERC Reliability Standards ERCOT Approved Oct 12 '16 Jan 26 '17
NOGRR166 Removal of the Daily Grid Operations Summary Reports ERCOT Approved Oct 14 '16 Mar 23 '17
NOGRR167 Alignment with NPRR776, Voltage Set Point Communication ERCOT Approved Oct 31 '16 Apr 26 '17
NOGRR171 Administrative Changes for June 1, 2017 Nodal Operating Guide – Load Shed Table ERCOT Approved May 11 '17 May 11 '17
NOGRR168 Nodal Operating Guide Revision Request Process ERCOT Approved Jan 30 '17 May 25 '17
NOGRR172 Alignment Changes for July 1, 2017 Nodal Operating Guide – NPRR824 ERCOT Approved Jun 14 '17 Jun 14 '17
NOGRR170 Alignment with NPRR824, Alignment of EEA Level 3 with NERC Reliability Standards EOP-011-1 and BAL-001-2 ERCOT Approved Mar 29 '17 Jun 28 '17
NOGRR173 Monthly RRS Reporting Clean Up ERCOT Approved Jun 23 '17 Sep 28 '17
NOGRR175 Administrative Changes for February 1, 2018 Nodal Operating Guide – Load Shed Table ERCOT Approved Jan 4 '18 Jan 4 '18
NOGRR169 Disturbance Monitoring Requirements Update to Align with NERC Reliability Standard PRC-002-2 SPWG Approved Mar 16 '17 Jan 25 '18
NOGRR149 Revision to Definition of Transmission Operator SPPG Rejected Nov 11 '15 Apr 10 '18
NOGRR179 Administrative Changes for June 1, 2018 Nodal Operating Guide – Load Shed Table ERCOT Approved May 11 '18 May 11 '18
NOGRR176 Hotline Call Participation ERCOT Approved Jan 17 '18 May 24 '18
NOGRR174 AVR and PSS Testing Requirements Luminant Generation Approved Dec 27 '17 Aug 7 '18
NOGRR180 Exemption of Governor Dead-Band and Droop Setting Requirements for Steam Turbines of Combined Cycle Generation Resources ERCOT Approved Jun 26 '18 Sep 26 '18
NOGRR181 Transmission Operator (TO) Black Start Plan Submittals ERCOT Approved Jun 27 '18 Sep 26 '18
NOGRR177 Related to NPRR857, Creation of Direct Current Tie Operator Market Participant Role ERCOT Approved Mar 19 '18 Oct 9 '18
NOGRR178 Clarification of Automatic Under-Frequency Load Shed Requirement ERCOT Approved Mar 21 '18 Nov 29 '18
NOGRR182 Transmission Operator (TO) Emergency Operations Plan Submittals ERCOT Approved Sep 10 '18 Nov 29 '18
NOGRR186 Alignment Changes for March 1, 2019 Nodal Operating Guide – NPRR863 ERCOT Approved Feb 19 '19 Feb 19 '19
NOGRR192 Administrative Changes for June 1, 2019 Nodal Operating Guide – Load Shed Table ERCOT Approved May 10 '19 May 10 '19
NOGRR188 WAN Technology Updates ERCOT Approved Mar 19 '19 May 22 '19
NOGRR189 Align Disturbance Monitoring Requirements Deadline with NERC Reliability Standard PRC-002-2 System Protection... Approved Mar 20 '19 May 22 '19
NOGRR185 Related to NPRR921, RTF-2 Elimination of the Terms All-Inclusive Generation Resource and All-Inclusive Resource ERCOT Approved Jan 28 '19 Jun 11 '19
NOGRR193 Administrative Changes for July 1, 2019 Nodal Operating Guide – Load Shed Table ERCOT Approved Jun 14 '19 Jun 14 '19
NOGRR190 Related to NPRR937, Distribution Voltage Level Block Load Transfer (BLT) Deployment Golden Spread... Withdrawn Apr 26 '19 Jul 11 '19
NOGRR187 Related to NPRR863, Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve STEC Approved Mar 6 '19 Aug 13 '19
NOGRR184 Related to NPRR919, Exemption from Governor Primary Frequency Response Control for Certain Resources in Private Use Networks Formosa Utility Venture, Ltd Rejected Jan 18 '19 Sep 5 '19
NOGRR191 Related to NPRR939, Modification to Load Resources Providing RRS to Maintain Minimum PRC on Generators During Scarcity Conditions ERCOT Approved Apr 30 '19 Oct 8 '19
NOGRR194 Relocate Black Start Training Attendance Requirements to Nodal Operating Guides ERCOT Approved Jul 24 '19 Oct 8 '19
NOGRR198 Alignment Changes for November 1, 2019 Nodal Operating Guide – NPRR939 ERCOT Approved Oct 11 '19 Oct 11 '19
NOGRR197 ! Align Responsive Reserve (RRS) Manual Deployment Requirements with Current Practice ERCOT Approved Oct 1 '19 Oct 23 '19
NOGRR201 Administrative Changes for January 1, 2020 Nodal Operating Guide – Load Shed Table ERCOT Approved Dec 10 '19 Dec 10 '19
NOGRR203 Alignment Changes for January 1, 2020 Nodal Operating Guide – NPRR937 and NPRR968 ERCOT Approved Dec 13 '19 Dec 13 '19
NOGRR206 Administrative Changes for February 1, 2020 Nodal Operating Guide – Load Shed Table ERCOT Approved Jan 15 '20 Jan 15 '20
NOGRR183 Remedial Action Scheme (RAS) Submittal and Review Requirements ERCOT Approved Oct 24 '18 Feb 11 '20
NOGRR213 Alignment Changes for May 1, 2020 Nodal Operating Guide – NPRR998 ERCOT Approved Apr 16 '20 Apr 16 '20
NOGRR204 ! Related to NPRR989, BESTF-1 Energy Storage Resource Technical Requirements ERCOT Approved Dec 16 '19 Jun 9 '20
NOGRR202 Align Nodal Operating Guide with the Posting Timeline in Other Binding Document Procedure for Calculating Responsive Reserve (RRS) Limits for Individual Resources STEC Approved Dec 13 '19 Jun 24 '20
NOGRR205 Clarification to Grey-boxed Language in Section 4.8.1 ERCOT Approved Jan 8 '20 Jun 24 '20
NOGRR195 Generator Voltage Control Tolerance Band ERCOT Approved Aug 20 '19 Aug 11 '20
NOGRR196 Related to NPRR973, Add Definitions for Generator Step-Up and Main Power Transformer ERCOT Approved Sep 25 '19 Aug 11 '20
NOGRR200 Delete Remaining Grey-Boxed Language Associated with NOGRR025, Monitoring Programs for QSEs, TSPs, and ERCOT ERCOT Approved Nov 20 '19 Aug 11 '20
NOGRR208 Related to NPRR1002, BESTF-5 Energy Storage Resource Single Model Registration and Charging Restrictions in Emergency Conditions ERCOT Approved Feb 25 '20 Aug 11 '20
NOGRR209 Related to NPRR1003, Elimination of References to Resource Asset Registration Form ERCOT Approved Feb 26 '20 Aug 11 '20
NOGRR212 Related to NPRR1016, Clarify Requirements for Distribution Generation Resources (DGRs) and Distribution Energy Storage Resources (DESRs) ERCOT Approved Mar 25 '20 Aug 11 '20
NOGRR216 Alignment Changes for September 1, 2020 Nodal Operating Guide – NPRR1002 ERCOT Approved Aug 18 '20 Aug 18 '20
NOGRR214 Geomagnetic Disturbance (GMD) Measurement Data Reporting ERCOT Approved May 20 '20 Sep 23 '20
NOGRR218 ! Removal of Annual Disturbance Monitoring Equipment Database Submission Requirement System Protection... Approved Aug 19 '20 Sep 23 '20
NOGRR220 Greybox Baseline Updates re NOGRR212 ERCOT Approved Sep 23 '20 Nov 18 '20
NOGRR207 Related to NPRR1001, Clarification of Definitions of Operating Condition Notice, Advisory, Watch, Emergency Notice, and Related Clarifications ERCOT Approved Feb 24 '20 Dec 8 '20
NOGRR211 ! RTC – NOG 2 and 9: System Operations and Control Requirements and Monitoring Programs ERCOT Approved Mar 25 '20 Dec 8 '20
NOGRR217 Related to NPRR1039, Replace the Term MIS Public Area with ERCOT Website ERCOT Approved Aug 18 '20 Dec 8 '20
NOGRR221 Alignment Changes for January 1, 2021 Nodal Operating Guide – NPRRs 1010 and 1039 ERCOT Approved Dec 15 '20 Dec 15 '20
NOGRR222 Administrative Changes for February 1, 2021 Nodal Operating Guide – Load Shed Table ERCOT Approved Jan 14 '21 Jan 14 '21
NOGRR224 Administrative Changes for March 1, 2021 Nodal Operating Guide – Load Shed Table ERCOT Approved Feb 11 '21 Feb 11 '21
NOGRR219 Related to NPRR1045, Transmission Operator Definition and Designation ERCOT Approved Sep 21 '20 Apr 13 '21
NOGRR225 Administrative Changes for June 1, 2021 Nodal Operating Guide – Load Shed Table ERCOT Approved May 14 '21 May 14 '21
NOGRR199 Related to NPRR979, Incorporate State Estimator Standards and Telemetry Standards into Protocols ERCOT Approved Oct 29 '19 Jun 8 '21
NOGRR228 Administrative Changes for July 1, 2021 Nodal Operating Guide – Load Shed Table ERCOT Approved Jun 15 '21 Jun 15 '21
NOGRR210 Related to NPRR1005, Clarify Definition of Point of Interconnection (POI) and Add Definition Point of Interconnection Bus (POIB) ERCOT Approved Feb 26 '20 Aug 19 '21
NOGRR229 Alignment Changes for September 1, 2021 Nodal Operating Guide – NPRR995 ERCOT Approved Aug 10 '21 Aug 19 '21
NOGRR223 Add Phasor Measurement Recording Equipment Requirement to Modified Generating Facilities in Interconnection Process ERCOT Approved Feb 9 '21 Oct 7 '21
NOGRR227 Add Phasor Measurement Recording Equipment Location for Main Power Transformer for Intermittent Renewable Resource (IRR) ERCOT Approved May 19 '21 Oct 7 '21
NOGRR232 ! Related to NPRR1093, Load Resource Participation in Non-Spinning Reserve ERCOT Approved Sep 1 '21 Oct 28 '21
NOGRR231 Update ERCOT Regional Map ERCOT Approved Aug 17 '21 Dec 16 '21
NOGRR233 Related to NPRR1094, Allow Under Frequency Relay Load to be Manually Shed During EEA3 Oncor Approved Sep 1 '21 Dec 16 '21
NOGRR236 ! Related to NPRR1105, Option to Deploy Distribution Voltage Reduction Measures Prior to Energy Emergency Alert (EEA) ERCOT Approved Nov 4 '21 Dec 16 '21
NOGRR237 ! Related to NPRR1106, Deployment of Emergency Response Service (ERS) Prior to Declaration of Energy Emergency Alert (EEA) ERCOT Approved Nov 4 '21 Dec 16 '21
NOGRR238 Alignment Changes for December 17, 2021 Nodal Operating Guide – NPRR1094, NPRR1105, NPRR1106 ERCOT Approved Dec 10 '21 Dec 16 '21
NOGRR235 Combining Greyboxes and Other Corrections ERCOT Approved Oct 20 '21 Feb 10 '22
NOGRR234 Related to NPRR1098, Direct Current Tie (DC Tie) Reactive Power Capability Requirements ERCOT Approved Sep 29 '21 Mar 31 '22
NOGRR239 ! WAN Data Protection Responsibilities ERCOT Approved Jan 19 '22 May 12 '22
NOGRR240 Direct Current Tie (DC Tie) Ride-Through Requirements ERCOT Approved Feb 16 '22 Jun 30 '22
NOGRR242 Update POIB References ERCOT Approved Jun 22 '22 Oct 20 '22
NOGRR241 Related to NPRR1127, Clarification of ERCOT Hotline Uses ERCOT Approved Mar 23 '22 Nov 3 '22
NOGRR244 Alignment Changes for December 1, 2022 Nodal Operating Guide – NPRR1127 ERCOT Approved Oct 20 '22 Nov 3 '22
NOGRR226 Addition of Supplemental UFLS Stages LCRA Approved May 14 '21 Jan 26 '23
NOGRR243 ! Implementation of Seasonal Load Shed Tables Joint TOs Approved Sep 29 '22 Jan 26 '23
NOGRR248 ! Related to NPRR1157, Incorporation of PUCT Approval into Revision Request Process ERCOT Approved Feb 22 '23 May 11 '23
NOGRR253 ! Related to NPRR1178, Expectations for Resources Providing ERCOT Contingency Reserve Service ERCOT Approved May 3 '23 Jun 29 '23
NOGRR246 Related to NPRR1161, Clarify AVR Notification Requirements for IRRs ERCOT Approved Feb 7 '23 Jul 20 '23
NOGRR254 Alignment Changes for August 1, 2023 Nodal Operating Guide – NPRR1143 ERCOT Approved Jun 27 '23 Jul 20 '23
NOGRR256 Related to NPRR1191, Registration, Interconnection, and Operation of Customers with Large Loads; Information Required of Customers with Loads 25 MW or Greater ERCOT Withdrawn Aug 1 '23 Sep 7 '23
NOGRR215 Limit Use of Remedial Action Schemes ERCOT Approved Jun 24 '20 Oct 12 '23
NOGRR230 WAN Participant Security ERCOT Approved Aug 11 '21 Oct 12 '23
NOGRR247 Change UFLS Stages and Load Relief Amounts ERCOT Approved Feb 15 '23 Oct 12 '23
NOGRR249 Communication of System Operating Limit Exceedances ERCOT Approved Mar 17 '23 Oct 12 '23
NOGRR250 Related to NPRR 1171, Requirements for DGRs and DESRs on Circuits Subject to Load Shedding ERCOT Approved Mar 29 '23 Oct 12 '23
NOGRR251 Add Cold Weather Conditions to Template for Emergency Operations Plan ERCOT Approved Apr 17 '23 Oct 12 '23
NOGRR252 Related to NPRR1176, Update to EEA Trigger Levels ERCOT Approved Apr 25 '23 Oct 12 '23
NOGRR259 Alignment Changes for November 3, 2023 Nodal Operating Guide – NPRR1176 ERCOT Approved Sep 26 '23 Nov 2 '23
NOGRR260 Administrative Change for Nodal Operating Guide – Remove Obsolete Reference from List of Appealable TAC Actions ERCOT Approved Oct 12 '23 Dec 14 '23
NOGRR257 Removal of Redundant ERS Reporting Requirement ERCOT Approved Aug 21 '23 Feb 1 '24
NOGRR261 Move OBD to Section 8 – Procedure for Calculating RRS Limits for Individual Resources ERCOT Approved Dec 21 '23 Apr 11 '24
NOGRR255 High Resolution Data Requirements ERCOT Approved Jun 29 '23 Jul 25 '24
NOGRR258 Related to NPRR1198, Congestion Mitigation Using Topology Reconfigurations EDF Renewables, Inc. Approved Aug 31 '23 Jul 25 '24
NOGRR245 ! Inverter-Based Resource (IBR) Ride-Through Requirements ERCOT Approved Jan 11 '23 Sep 26 '24
NOGRR269 Alignment Changes for October 1, 2024 Nodal Operating Guide – NPRR1217 ERCOT Approved Aug 22 '24 Sep 26 '24
NOGRR262 Provisions for Operator-Controlled Manual Load Shed ERCOT Approved Mar 20 '24 Nov 21 '24
NOGRR263 Related to NPRR1244, Clarification of Controllable Load Resource Primary Frequency Response Responsibilities Priority Power Approved Apr 10 '24 Nov 21 '24
NOGRR270 Alignment Changes for December 1, 2024 Nodal Operating Guide – NPRR1221 ERCOT Approved Oct 15 '24 Nov 21 '24
NOGRR266 Related to NPRR1239, Access to Market Information ERCOT Approved Jul 2 '24 Jan 16 '25
NOGRR267 Related to NPRR1240, Access to Transmission Planning Information ERCOT Approved Jul 2 '24 Jan 16 '25
NOGRR268 Related to NPRR1246, Energy Storage Resource Terminology Alignment for the Single-Model Era ERCOT Approved Jul 31 '24 Mar 13 '25
NOGRR271 Related to NPRR1257, Limit on Amount of RRS a Resource can Provide Using Primary Frequency Response ERCOT Approved Oct 21 '24 Mar 13 '25
NOGRR274 ! Conform Nodal Operating Guide to Revisions Implemented for NPRR1217, Remove Verbal Dispatch Instruction (VDI) Requirement for Deployment and Recall of Load Resources and Emergency Response Service (ERS) Resources ERCOT Approved Feb 26 '25 May 15 '25
NOGRR276 Alignment Changes for June 1, 2025 Nodal Operating Guide – NPRR1246 and NPRR1270 ERCOT Approved Apr 8 '25 May 15 '25
NOGRR265 Related to NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities Golden Spread... Approved Jun 26 '24 Jul 31 '25
NOGRR275 Eliminate Scheduling Center Requirements for QSEs That Are Not WAN Participants ERCOT Approved Feb 28 '25 Jul 31 '25
NOGRR277 ! Related to NPRR1282, Ancillary Service Duration under Real-Time Co-Optimization ERCOT Approved Apr 29 '25 Jul 31 '25
NOGRR272 ! Advanced Grid Support Requirements for Inverter-Based ESRs ERCOT Approved Oct 31 '24 Nov 6 '25
NOGRR278 ! Related to NPRR1290, Gap Resolutions and Clarifications for the Implementation of RTC+B ERCOT Approved Jul 16 '25 Nov 6 '25
NOGRR284 Related to NPRR1310, Dispatchable Reliability Reserve Service Plus Energy Storage Resource Participation and Release Factor ERCOT ROS for consideration (ROS) Nov 20 '25 Jan 8 '26
NOGRR279 Deadline Extensions for Recording Equipment Installation Invenergy Approved Jul 23 '25 Jan 15 '26
NOGRR280 Consolidate Redundant Communications Requirements LCRA Approved Sep 17 '25 Jan 15 '26
NOGRR285 Administrative Change for Nodal Operating Guides – NPRR1298 ERCOT Approved Nov 25 '25 Jan 15 '26
NOGRR264 Related to NPRR1235, Dispatchable Reliability Reserve Service as a Stand-Alone Ancillary Service ERCOT Withdrawn May 29 '24 Jan 21 '26
NOGRR273 Related to NPRR1264, Creation of a New Energy Attribute Certificate Program Texas Energy Buyers... Revision Request Consideration (TAC) Dec 19 '24 Jun 4 '26
NOGRR286 Addition of 765-kV Operational Voltage Limits Joint Sponsors Impact Analysis Consideration (ROS) Mar 16 '26 Jun 4 '26
NOGRR287 Load Shed Provisions to Identify and Minimize Overlap of Essential Loads ERCOT Revision Request Consideration (TAC) Apr 22 '26 Jun 4 '26
NOGRR281 Related to NPRR1307, Revised Definition of Mitigation Plan ERCOT Approved Nov 13 '25 Jul 9 '26
NOGRR282 ! Board Priority - Large Computational Load Ride-Through Requirements ERCOT Approved Nov 14 '25 Jul 9 '26
NOGRR283 ! Board Priority - Related to NPRR1309, Dispatchable Reliability Reserve Service Ancillary Service ERCOT Approved Nov 20 '25 Jul 9 '26
NOGRR288 Related to NPRR1340, Dispatchable Reliability Reserve Service Ancillary Service with Energy Storage Resource Participation ERCOT ROS for consideration (ROS) May 29 '26 Jul 9 '26