| # | Title | Description | Date Posted | Sponsor | Urgent | Protocol Sections | Current Status | Effective Date(s) |
|---|---|---|---|---|---|---|---|---|
| OGRR101 | Facilities With Federal License | This revision obligates the ERCOT control area authority and local TDSP to uphold a generating facility's federal licensing requirements. | 08/28/2001 | Austin Energy | No | 3.2.4 | Approved | |
| OGRR102 | Change Process Update | Update the Change Control Process. | 08/28/2001 | ERCOT | No | 1.4 | Approved | |
| OGRR103 | ERCOT Planning Criteria Revision | The proposed ERCOT Planning Criteria revision recognizes changes to ERCOT organization names, structures, and relationships that have been implemented to accommodate retail access and single control area operation. | 08/28/2001 | TXU | No | Appendix Section B.2 | Approved | |
| OGRR104 | References Update | Requested change of all references pertaining to Form 1 Appendix C6.1 to Relay Misoperation Report Appendix A Report A2.2. This is a suggested correction to an incorrect reference from the previous ERCOT Guides. | 10/03/2001 | LCRA | No | Appendix B, Sections 4.2 & 4.3 | Approved | |
| OGRR105 | ERCOT staff can submit OGRRs | 10/03/2001 | CPS-San Antonio | No | 1.4 | Withdrawn | ||
| OGRR106 | Generator Test Form Revisions | Remove control area references, add additional details for units to aid in identification. Test-related content unchanged, except for quick start tests changed to 30 minute instead of 10. | 01/09/2002 | ERCOT | No | Appendix A | Approved | |
| OGRR107 | SPWG Recommendations | Address the potential for ice-related attenuation of power line carrier blocking signals (B.4.5.2) and the potential for a catastrophic failure during a sync check relay assisted reclosing attempt (B.4.5.3). | 02/08/2002 | LCRA | No | Appendix B.4.5.2 & B.4.5.3 | Approved | |
| OGRR108 | ERCOT Reactive Standards | Addition of ERCOT Reactive Standards to address minimum reactive capabilities of generating units - including co-generators and self-serve generators, minimum reactive compensation at existing and future substations and minimum dynamic reactive reserve margins in the ERCOT electric network. | 02/08/2002 | ERCOT | No | 2.13 | Withdrawn | |
| OGRR109 | SPTF Revisions | Minor revisions to Appendix A and B to specify requirements for NERC, add language for dynamic disturbance recorders, | 03/14/2002 | ERCOT | No | Appendix A & B | Approved | |
| OGRR110 | Rename & Expand Operating Guides to Include Planning | Rename Guides to ERCOT Operation & Planning Guide. Create new Planning section to include Planning Criteria, Planning Process, Generation Interconnection Request Procedures, Reactive Standards, Evaluation of Transmission Project Submissions, etc. | 05/06/2002 | ERCOT | No | All sections & add sections for Planning | Withdrawn | |
| OGRR111 | EECP Step 2 | Update EECP Step 2 to reflect current procedures. | 01/15/2015 | OGRTF | Yes | 4.5.3.2 | Approved | |
| OGRR112 | Block Load Transfers | Update OG to reflect current Protocol language, which language from PRR289 & PIP209. | 06/26/2002 | AEP | No | 4.5 | Approved | |
| OGRR113 | Responsibility Transfers Availability | OG update due to PRR215. | 06/26/2002 | CPS-San Antonio | No | 3.2.7 | Approved | |
| OGRR114 | RPC & AVR Responsibility Assignment | OG update due to PRR218. | 07/26/2002 | CPS-San Antonio | No | 3.1.4.2 | Approved | |
| OGRR115 | Frequency Level Deviation | Update frequency deviation revised in Protocols by PRR219. | 06/26/2002 | LCRA | No | 1.6 | Approved | |
| OGRR116 | Day Ahead Scheduling & ERCOT Responsibilities | OG update due to PRRs 268 & 294 & PIP144. | 07/26/2002 | OGRTF | No | 2.5.1, 2.6.1 & 3.2.2.1 | Approved | |
| OGRR117 | Appendix C Revision | Adds "Communicating with ERCOT" document to Appendix C. | 07/18/2002 | Oncor | No | Appendix C | Approved | |
| OGRR118 | Black Start | Updates language & adds consistency to the Black Start section of Part 4: Emergency Operations. The Black Start section of the Operating Guides is meant to contain general Black Start instruction, whereas, the Annual Black Start Plan contains the specific plan for Black Start recovery. | 07/29/2002 | Reliant | No | 4.6 | Approved | |
| OGRR119 | QSE Scheduling Center Backup Plan | Establishes the requirements for a backup plan in the event of a loss of the QSE's scheduling center. | 07/26/2002 | Reliant | No | 3.1.3.1 | Approved | |
| OGRR120 | TO Backup Plan | Establishes the requirements for a backup plan in the event of a loss of the TO's scheduling center. | 07/26/2002 | Reliant | No | 1.7.3 | Approved | |
| OGRR121 | Fault Recording Equipment | Modifies wording that allows manual and automatic triggers to count as a functional test as well as recorder event waveform analysis and verifications to count as calibration checks. | 09/20/2002 | CPS-San Antonio | No | B2.2.5 | Approved | |
| OGRR122 | Unit Specific Dispatch Instructions Under Testing | Revise OG Sections 4.5 and 4.5.3.2 to update EECP Step 1 to include Resource performance the testing language found in PRR 322 [Protocols Section 5.6.7]. | 12/11/2002 | Reliant | No | 4.5, 4.5.3.2 | Approved | |
| OGRR123 | Increase Maximum UFR Percentage | Increases amount of interruptible load on high-set under-frequency relays (UFR) participation Resources can provide as Responsive Reserve Service (RRS) from 25 to 35%. | 12/11/2002 | Reliant | Yes | 2.6.2.4 | Approved | |
| OGRR124 | Section 2 Update Protocol References | Update Protocols references to more recent Protocols language. | 12/23/2002 | OGRTF | No | 2.4.2, 2.8 | Approved | |
| OGRR125 | Section 3 Update Protocol References | Update references made to Protocols and remove duplicate text. | 12/23/2002 | OGRTF | No | 3.1.3.2, 3.2.1.2, 3.2.2.1, 3.2.6 | Approved | |
| OGRR126 | Section 3.2.6 Duplicate Text | Delete text duplicated from the Protocols reference. | 12/23/2002 | OGRTF | No | 3.2.6 | Approved | |
| OGRR127 | Changes Due to PRR 341 Transmission Facility Status Change Notification | Protocol references update and remove redundant language. | 01/31/2003 | CenterPoint | No | 2.6.2 | Approved | |
| OGRR128 | Change Process Regarding Protocol Revisions | Several sections of the Protocols were quoted verbatim in the Operating Guides. This OGRR would allow that those Protocols excerpts that are in the Operating Guides, be changed administratively as directed by ROS. | 01/31/2003 | Reliant | No | 1.3 | Approved | |
| OGRR129 | TO/TDSP Emergency Communication | Adds requirement for Transmission Operators to notify the appropriate TDSPs of ERCOT declared emergency events. | 04/16/2003 | Reliant | No | 4.1, 4.2.2, 4.2.3, 4.5.3, 4.5.3.1, 4.5.3.3, 4.6.4 | Approved | |
| OGRR130 | AVR and PSS Status Reporting Requirements | Corrects AVR reference and inconsistent AVR/PSS status reporting requirements in the Operating Guides. Adds Protocol Reference 6.5.7 (9) to Operating Guide Section 2.2.4 | 04/16/2003 | Reliant | No | 2.2.4, 3.1.4.1 and 3.1.4.5 | Approved | |
| OGRR131 | LaaR Qualification Procedure for RPRS/NSRS/RRS | Specifies LaaR requirements to qualify as a provider of Responsive Reserve Service, Non-Spin Service and Replacement Reserve Service. | 04/16/2003 | Reliant | No | 2.5.2.3 | Approved | |
| OGRR132 | Transmission Operator Clarification | Clarifies the responsibilities for Transmission Operators. | 06/18/2003 | CenterPoint | No | 1.7.3 | Approved | |
| OGRR133 | Section 1 Clarification | Operating Guide language revision. | 06/18/2003 | CenterPoint | No | 1 | Approved | |
| OGRR134 | Calculation of Transmission Equipment Limits | Defines equipment ratings for TDSP's facilities and ERCOT's use of the ratings. | 04/18/2003 | ERCOT | No | 3.1.6 | Approved | |
| OGRR135 | ADMINISTRATIVE CHANGE | 06/19/2003 | OGRTF | No | 4.6 | Approved | ||
| OGRR136 | ADMINISTRATIVE CHANGE | 06/30/2003 | OGRTF | No | 4.5.3.2 | Approved | ||
| OGRR137 | Revision due to PRR 415 Establish 50% as Limit for LaaRs Providing RRS | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3 Change Control Process. | 07/28/2003 | OGRTF | No | 2.5.2.3; 2.5.2.4 | Approved | |
| OGRR138 | Reactive Curves Requirement | Remove the requirement that Generator Reactive Design Curves be submitted to ERCOT each time that a Reactive Limit Test is performed and submitted. | 07/28/2003 | TXU | No | 6.2.3 | Withdrawn | |
| OGRR139 | Black Start Back Up Communication Facility Criteria | There was little or no specification in the Operating Guides for emergency back up communication facilities during a blackout. | 08/18/2003 | BSTF | No | 4A.1(b); 4.6.5 [new] | Approved | |
| OGRR140 | Remedial Action Plan (RAP) and Special Protection Scheme (SPS) Coordination | Update Operating Guides' RAP/SPS criteria to be consistent with the coordination and review requirements found in the ERCOT System Planning Procedures. Correct out-of-date section references. Rearrange sections for clarity. | 10/02/2003 | CPS-San Antonio | No | 4.3, 4.3.1 [new], 7.2.2 | Approved | |
| OGRR141 | Section 2 Corrections and Clarifications | Implements Protocol and Operating Guides Reference Corrections, Section title corrections, punctuation corrections, corrections to pre deregulation language, and defined term corrections. | 12/01/2003 | AEP | No | 2 | Approved | |
| OGRR142 | DOE and NERC Reporting | Changes the reporting processes by having TDSPs and QSEs provide required disturbance data for DOE/NERC reportable events to the ERCOT Control Area Authority, who will distribute the report to the DOE and NERC. | 12/08/2003 | OWG | No | 2.1; 3.1.3.4 [new]; 3.1.5.1 | Approved | |
| OGRR143 | Change Control Process | Revises the OGRR process to require only one review by ROS, unless comments are made on the ROS Recommendation Report. Modifies comment periods to be more similar to the Protocol revision comment periods. | 01/06/2004 | ERCOT | No | 1.3 | Approved | |
| OGRR144 | Tripping Generators for Low Frequency Events | Clarifies Operating Guide requirements for coordinating generation under frequency trip points with firm Load shed trip points. | 01/14/2004 | CenterPoint | No | 2.9.2, 3.1.4.6, 7.2.5.3 | Approved | |
| OGRR145 | Reactive Standards | This OGRR is intended to make the Operating Guides conform to the Reactive Standards adopted by TAC. Those portions of the standards that are most appropriately contained in the Operating Guides are included in this OGRR. | 01/15/2004 | CPS-San Antonio | No | 2.10.2, 3.1.4.1, 3.1.4.3, 3.1.4.5, 3.1.4.6, 5.1.1, 5.1.4, 5.1.6 | Approved | |
| OGRR146 | Annual Evaluation Forms for LaaRs Providing Ancillary Services | Changes the Protocol Reference from seasonal LaaR testing to an annual evaluation of the telemetry attributes. In addition, a biennial test of the under frequency relays for LaaRs providing Responsive Reserve Service will be required if not verified through an actual event. This OGRR also adds an enforcement section comparable to Generation Resource requirements. | 01/19/2004 | ERCOT | No | 3.1.4.1, 3.4.8, 6.1.3, 6.2.6, 6.2.7 | Approved | |
| OGRR147 | System Fuel Availability | Change to maintain Operating Guide consistency with Protocols. This would be an administrative change except that the Operating Guide changes are not exclusively Protocol references. | 02/02/2004 | ERCOT | No | 4.2.1, 4.2.2, 4.2.4 | Approved | |
| OGRR148 | Remove Reference to PARWG | Update to Section 5.1.1 to remove reference to PARWG. | 02/23/2004 | CPS | No | 5.1.1 | Approved | |
| OGRR149 | Types of Responsive Reserve | Update to Section 2.5.2.3 to add language. | 05/17/2004 | CPS | No | 2.5.2.3 | Approved | |
| OGRR150 | UF Relay Trip Time for Load Shedding | Update to Section 1.5, Conformance to NERC Policies and Procedures | 06/15/2004 | CPS | No | 1.5 | Approved | |
| OGRR151 | Operator Emergency Training | Adds new mandatory NERC requirements for Operator Training for the Control Area Authority and Transmission Operators, as directed by ROS. | 07/20/2004 | OGRTF | No | 1.8 | Approved | |
| OGRR152 | Transmission Vegetation Management and Outage Reporting | Adds new mandatory NERC requirements on vegetation management planning and reporting transmission outages caused by vegetation, as directed by ROS. | 07/20/2004 | OGRTF | No | 3.1.5 | Approved | |
| OGRR153 | Reactive Capability Testing | Revision of Operating Guide Section 3.1.4.3 and Section 6.2.3 form to conform to ERCOT Generator Reactive Testing Procedures | 08/20/2004 | GRTPTF | No | 3.1.4.3; 6.2.3 | Approved | |
| OGRR154 | Generator Protection Requirements | Describes the operating conditions under which generators should stay connected | 08/27/2004 | OGRTF | No | 3.1.4.6 | Approved | |
| OGRR155 | Section 3 Corrections and Clarifications | Implements Protocol and Operating Guides Reference Corrections, Section title corrections, punctuation corrections, corrections to pre deregulation language, and defined term corrections. Removes redundant and unnecessary language. | 08/27/2004 | OGRTF | No | 3 | Withdrawn | |
| OGRR156 | Reactive Considerations due to PRR409 (Voltage Support Service from Generating Resource) | Adds appropriate language to ensure the timely response of Generation Resources to ERCOT instructions for Voltage Support Service. | 10/25/2004 | OGRTF | No | 2.10.4 [new] | Approved | |
| OGRR157 | Delete Test Form For Non-Spinning Reserve Service | This PRR removes the unit specific non-spin test form from Operating Guides. | 10/27/2004 | Reliant | No | 6.2.5 | Approved | |
| OGRR158 | Consistent Under-frequency Relay Trip Time Language | Revises Operating Guide 2.9.1 (Automatic Firm Load Shedding) to be consistent with approved OGRR150 (Clarification of UF Relay Trip Time for Load Shedding), which was a revision of Operating Guide 1.5.9 (Conformance to NERC Policies and Procedures). | 10/27/2004 | OGRTF | No | 2.9.1 | Approved | |
| OGRR159 | Clarification of QSE Schedule Control Error equation Bias Setting and Turbine Speed Governors | Clarifies QSE Schedule Control Error equation Bias Setting and reference to Protocol Section 5.8.2. Defines Governor dead band per NERC Policy 1 and governor free to respond to all frequency deviations. | 11/11/2004 | PDCWG | No | 2.2.3.1; 2.2.5 | Approved | |
| OGRR160 | ADMINISTRATIVE CHANGE | 12/01/2004 | OGRTF | No | 3.1.4.3, 3.2.1.2, 8.2.6, 8.2.7, 8.2.9 | Approved | ||
| OGRR161 | Responsive Reserve MW Limit | Change the limit of RRS on an individual Generation Resource from 20% of Net Generation Capability to 20% of Net Generation Capability or 50MW, whichever is greater. | 12/21/2004 | Occidental | No | 2.5.2.3 | Withdrawn | |
| OGRR162 | Revisions to Disturbance Monitoring | Makes GPS time synchronization a requirement, and clarifies location requirements to exclude 69kV lines but include generator owned transmission above 100kV. | 02/02/2005 | SPWG | No | 7.1.2 | Approved | |
| OGRR163 | State Estimator Observability and Redundancy Requirements | Updates the Operating Guide to include State Estimator Observability and Redundancy Requirements | 02/15/2005 | OGRTF | No | 8.1.6 | Approved | |
| OGRR164 | Responsive Reserve MW Limit | Change the limit of RRS on an individual Generation Resource from 20% of Net Generation Capability to 20% of Net Generation Capability or 50MW, whichever is greater. | 03/25/2005 | ANP | No | 2.5.2.3 | Rejected | |
| OGRR165 | Update Unit Telemetry Requirement | This revision proposes to add a requirement for QSEs to submit real-time AGC status and Ramp Rate for all units in their portfolio. | 04/01/2005 | ERCOT | No | 3.1.3.1, 8A | Withdrawn | |
| OGRR166 | Double Circuit Contingencies | This change would allow ERCOT to consider double circuits as a single contingency for capacity commitment decisions, ERCOT would not consider the double circuit as a single contingency for energy deployment except under spec | 04/26/2005 | TXU | No | 4.3 | Approved | |
| OGRR167 | Clarification of LaaR Underfrequency Relay Interruption Time | Adds LaaR interruption total time limit of 30 cycles including all relay and breaker interruption times. | 04/26/2005 | Reliant Energy | No | 2.5.2.3 | Approved | |
| OGRR168 | Administrative Changes for June 2005 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3 Change Control Process. | 05/31/2005 | OGRTF | No | 1.5, 2.2.4, 2.3.2.2, 2.4.5.1, 2.4.5.3, 2.5.1, 2.6.2, 3.1.3.2, 3.1.5, 4.5.3.2, 4.6 | Approved | |
| OGRR169 | Reporting of Reserve Capability Under Severe Gas Curtailments | Adds a requirement that Resources provide additional data describing their alternative fuel capability during the winter months. | 06/14/2005 | ERCOT | No | 3.1.4.1, 6.2.7 | Approved |
06/01/2006
|
| OGRR170 | Administrative Changes for July 2005 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3 Change Control Process. | 06/30/2005 | OGRTF | No | 2.4.5.3, 2.8.1 | Approved | |
| OGRR171 | Testing of Quick Start Units in the Balancing Energy Market | This OGRR establishes the test by which a quick start unit can demonstrate its ability to perform in the BES market, as required by PRR588. | 06/30/2005 | ERCOT | No | 2.5.5 | Approved | |
| OGRR172 | Special Protection System Obligations | The changes permit the sharing of limited TDSP operating information with Generation Entities subject to SPS control as necessary to avoid SPS operations. The changes also propose differences in the SPS review and approval process between new SPSs that involve Generation Entities or affect a wide area, and other SPSs. | 07/28/2005 | TXU Electric Delivery | No | 7.2.2 | Approved |
04/01/2006
|
| OGRR173 | Administrative Changes for September 2005 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3 Change Control Process. | 08/31/2005 | OGRTF | No | 2.5.1 | Approved | |
| OGRR174 | Definition of a Single Generating Unit | Defines the meaning of the term "single generating unit" when considering a Combined Cycle Combustion Turbine (CCCT) in light of the requirements specified in Operating Guide 5.1.4 Transmission Reliability Testing. Also requires Generation Entities that own a CCCT to supply information to ERCOT to justify the use of an exception to the definition of a "single generating unit." | 09/02/2005 | TXU Wholesale | No | 5.1.4 | Approved |
04/01/2006
|
| OGRR175 | Emergency Storm Drill Participation | To facilitate good communications between ERCOT, QSE (that provide Ancillary Services), and Transmission Operators, an annual emergency storm drill will be conducted with appropriate emergency scenarios to provide a realistic simulation of emergency conditions to operators. This emergency storm drill will be followed by a critique by all participants to ensure that communication paths worked as expected and operators received proper emergency training. | 09/07/2005 | OTF | Yes | 1.8.5 | Approved | |
| OGRR176 | MP Use of DNS or ERCOT Web-Based Front Page for Site Failover | This OGRR requires a Market Participant possessing a backup site to utilize a WAN (Wide Area Network) Domain Name Service (DNS) server or an ERCOT provided Web-Based DNS service to facilitate the API (Application Program Interface) failover process when moving to or from their backup site. | 10/24/2005 | ERCOT | No | 1.7.3, 3.1.3.1, 8.3.1.1 | Approved |
06/01/2006
|
| OGRR177 | Administrative Changes for November 2005 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3, Change Control Process. | 10/31/2005 | Operating Guide Revision Task Force | No | 2.8.1 | Approved | |
| OGRR178 | Revision to Reactive Limits Verification Form | Revise the form to include minimum value on the CURL Curve, add notes on auxiliary load, add contact phone numbers, add a diagram showing the measurement locations and correct the note on calculated Net Generator Reactive. | 11/03/2005 | CenterPoint Energy | No | 6.2.3 | Approved |
06/01/2006
|
| OGRR179 | Under-Voltage Load Shedding Protection Systems | Requirements for under-voltage Load shedding protection systems and minor modifications for references to supporting Sections of the Operating Guide (regarding protection system maintenance). | 01/05/2006 | System Protection Working Group | No | 7.2.5.3 | Approved |
08/01/2006
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| OGRR180 | Administrative Changes for February 2006 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3, Change Control Process. | 01/30/2006 | OGRTF | No | 2.4.1, 3.1.3.4, 3.1.5.1, 8.2.7 | Approved | |
| OGRR181 | Submission of Consistent Data for Planning and Operational Models | This OGRR adds language that will require that data on existing and future ERCOT System components and topology submitted to ERCOT by Transmission and/or Distribution Service Providers (TDSPs) for use in Planning and Operational Models is consistent. | 02/03/2006 | ERCOT | No | 5.1.6, 8.2.7 | Approved |
10/01/2006
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| OGRR182 | Process for Operating Guide Revisions | This OGRR completely revises the OGRR process to be similar to the PRR process in Protocol Section 21. Specifically, this OGRR:1. Adds an Impact Analysis requirement to Operating Guide change control process.2. Allows the submitter to withdraw an OGRR only before OWG issues a recommendation.3. Allows ROS to reject an OGRR and notify TAC, rather than recommend a rejection to TAC.4. Clarifies that if OWG cannot reach a consensus on an OGRR, ROS is required to resolve the issue.5. Transfers responsibility for Protocol consistency determination from PRS to OWG.6. Requires ERCOT Board approval of OGRRs with an ERCOT system or staffing impact. | 02/09/2006 | ERCOT | No | 1.3 | Approved |
06/01/2006
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| OGRR183 | Administrative Changes for April 2006 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3, Change Control Process. | 03/31/2006 | OGRTF | No | 2.4.3.1, 4.5 | Approved | |
| OGRR184 | Administrative Changes for May 2006 Operating Guides | This OGRR updates the Load Shed table in Operating Guide Section 4.5.3.2 as required by Section 4.5.3. | 04/28/2006 | OGRTF | No | 4.5.3.2 | Approved | |
| OGRR185 | Administrative Changes for June 2006 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3 Change Control Process. | 05/24/2006 | OGRTF | No | 2.4.1, 2.4.3.1, 2.5.1, 3.1.3.1, 3.1.3.2, 4.2.1, 4.2.2, 4.2.3, 4.5 | Approved | |
| OGRR186 | Emergency Electric Curtailment Plan (EECP) Event Realignment | The revisions to the Operating Guide Sections stated above are such that process items of EECP reflect the necessary sequence for ERCOT to more appropriately be proactive during certain system events. | 07/31/2006 | Operations Working Group | Yes | Section 1.6, 2.5.2.3, 4.5.3, 4.5.3.1 (new), 4.5.3.1, and 4.5.3.2. | Approved |
10/01/2006
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| OGRR187 | Conforming Emergency Electric Curtailment Plan (EECP) Operating Guide Language with Protocol Language | This OGRR conforms OGRR186 changes with Protocol language revisions set forth in PRR682, EECP Event Realignment to include language that media appeal be subject to issuance at ERCOT management discretion at any time and a requirement of a mandatory media appeal as part of Step 2 of the EECP if a media appeal is not already in effect at that time. | 10/13/2006 | ROS | Yes | 4.5.3 | Approved |
12/01/2006
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| OGRR188 | Generating Facility Model Validation for Conformance with NERC Field Test Standards | This revision proposes to include new subsections for Generating Unit Model Validation requirements made necessary by virtue of ERCOT participation in the NERC Field Test Standards. | 11/21/2006 | Dynamics Working Group | No | 3.1.4.9, 3.1.4.9.1, 3.1.4.9.1.1, 3.1.4.9.1.2, 3.1.4.9.1.3, 3.1.4.9.2, 3.1.4.9.3, 3.1.4.9.4 | Rejected | |
| OGRR189 | Administrative Changes for January 1, 2007 Operating Guides | Administrative change to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3, Process for Operating Guide Revision. | 12/12/2006 | ERCOT | No | 4.5 | Approved | |
| OGRR190 | Administrative Changes for February 1, 2007 Operating Guides | This OGRR proposes administrative changes to maintain Operating Guide consistency with Protocols as allowed by Operating Guide Section 1.3, Process for Operating Guide Revision. This OGRR also notes incomplete Protocol References. | 01/19/2007 | ERCOT | No | 1.5, 1.7.4, 2.1, 2.2.4, 2.3.2.2, 2.4, 2.4.3.1, 2.4.5.3, 2.5.1, 2.5.2.3, 2.5.3.1, 2.5.4, 2.5.5, 2.6.1, 2.10.4, 3.1.3.1, 3.1.3.2, 3.1.3.3, 3.1.4.1, 3.1.5, 3.2.1.5, 3.2.2.2, 3.2.5, 3.2.6, 3.2.7, 4.4, 4.5, 4.5.3.3, 4.6, 4.6.5 | Approved | |
| OGRR191 | Administrative Changes for March 1, 2007 Operating Guides | This Operating Guide Revision Request (OGRR) proposes administrative changes to maintain Operating Guide consistency with ERCOT Protocols as allowed by Operating Guide Section 1.3, Process for Operating Guide Revision. | 02/07/2007 | ERCOT | No | 3.1.3.1 | Approved | |
| OGRR192 | Combustion Turbine Governor Performance Test Forms | This OGRR adds two new sections describing Combustion Turbine Governor Performance Testing Procedures based on actual and historical data. | 02/08/2007 | PDCWG | No | 2.2.5, 3.1.4.1, 6.2.1.5(new), 6.2.1.6(new) | Approved |
11/01/2007
|
| OGRR193 | System Voltage Profile Clarification | This Operating Guide Revision Request (OGRR) proposes language to clarify that the ERCOT calculated Voltage Profile is the normally desired scheduled voltage for the specified transmission bus. | 03/02/2007 | LCRA | No | 2.10.1, 2.10.2, 2.10.3, 2.10.4.1 | Withdrawn | |
| OGRR194 | Wording Changes to Make All Parts of Section 7 Consistent | Wording changes to make all parts of Section 7 consistent | 03/12/2007 | Stan Ginsburg w/Brazos Electric Cooperative | No | 7.1.2.4, Data Retention and Reporting Requirements 7.1.4, Equipment Reporting Requirements 7.2.3, Performance Analysis Requirements for ERCOT System Facilities 7.2.5.1, General Protection Criteria | Approved |
10/01/2007
|
| OGRR195 | Administrative Changes for May 1, 2007 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the Operating Guide to reflect the recent NERC name change from North American Electric Reliability Council to North American Electric Reliability Corporation. | 04/13/2007 | ERCOT | No | 1.1, 1.3.1, 1.4, 1.5, 2.1, 2.4.3.1, 2.11.1 | Approved | |
| OGRR196 | Conformance with PRR705, Emergency Interruptible Load Service (EILS) | This Operating Guide Revision Request (OGRR) conforms the Operating Guides with PRR705 to allow for the use of Emergency Interruptible Load Service (EILS) when an Emergency Electric Curtailment Plan (EECP) is declared and all available generation and Loads acting as Resources (LaaRs) have been deployed. | 05/01/2007 | ERCOT | Yes | 4.5, 4.5.3.3 | Approved |
06/08/2007
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| OGRR197 | Conforming Operating Guides to Protocol Section 21 and Other Market Guides | This Operating Guide Revision Request (OGRR) conforms the revision process for the Operating Guide to Protocol Section 21 and other ERCOT market guides by: Requiring that an OGRR associated with an ERCOT project be assigned to the œUnfunded Project Lis€? unless the project can be funded in the current ERCOT budget cycle based upon its priority and ranking; Providing specific guidelines for ROS to use when determining whether a OGRR should be considered urgent; and Proposing other formatting, stylistic, and administrative changes. This OGRR also adds a new subsection pertaining to Nodal Operating Guide Revision | 05/02/2007 | ERCOT | No | 1.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.4.1, 1.3.4.2, 1.3.4.3, 1.3.4.4, 1.3.4.5, 1.3.4.6, 1.3.4.7, 1.3.4.8, 1.3.4.9, 1.3.4.10, 1.3.4.11, 1.3.4.12, 1.3.5, 1.3.6, 1.3.7 | Approved |
10/01/2007
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| OGRR198 | Firm Load Shed Implementation Time Periods | This Operating Guide Revision Request (OGRR) adds language to the current ERCOT Operating Guides to provide maximum time periods allowed for firm load shed implementation by Transmission and/or Distribution Service Providers (TDSPs) at the request of ERCOT System Operators when in EECP Step 4. | 05/09/2007 | CenterPoint Energy | No | 4.5.3 | Approved |
04/01/2008
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| OGRR199 | Administrative Changes for June 1, 2007 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the ERCOT Load Shed Table for 2007. | 05/16/2007 | ERCOT | No | 4.5.3.3 | Approved | |
| OGRR200 | 48 Hour Restoration (Companion to PRR722) | This Operating Guide Revision Request (OGRR) proposes language so that in the unlikely event of an ERCOT System shut down, ERCOT will return 90% of ERCOT peak load to pre-disturbed condition at or near 48 hours if a viable solution is available. This OGRR is a companion to PRR722, 48 Hour Restoration. | 05/23/2007 | Dennis Starbuck on behalf of the ERCOT Black Start Task Force | No | 4.6, 4.6.1 | Withdrawn | |
| OGRR201 | Administrative Changes for July 1, 2007 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the Operating Guides to conform references to Protocol sections to the current Protocol language. This OGRR also updates references to instances of the "NERC Policies and Procedures" to include "NERC Reliability Standards" where applicable. | 06/22/2007 | ERCOT | No | 1.1, 1.2, 1.5, 1.7.1, 2.1, 2.2.3.6, 2.4, 2.4.3.1, 2.4.5.2, 2.5.2.3, 2.5.3.1, 2.5.4, 2.5.5, 3.1.3.1, 3.2.1.3, 3.2.2.2, 3.2.6, 4.5, 4.6, 4.6.4, 4A.3, 4A.4, 5.1.1, 5.1.4, 7.2.1, 7.2.2, 8.1, 8.1.5, 8.2.6, 8.2.7, 8.2.9 | Approved | |
| OGRR202 | Clarification of Responsibility for Switching of Transmission Elements | This Operating Guide Revision Request (OGRR) is proposed to address NERC Standard requirements. NERC Standards require the development, maintenance, and implementation of formal policies and procedures to provide for transmission reliability. Specifically to be included is designation of responsibility for switching transmission elements. The specific requirement is Requirement # R6.3 of NERC Standard TOP-004-0, presently in effect, and the same requirement number in NERC Standard TOP-004-1 to be effective October 1, 2007. | 06/27/2007 | ERCOT | Yes | 1.7.3 | Approved |
09/01/2007
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| OGRR203 | Conforming Changes to Address Current NERC Terminology and the Texas Regional Entity (TRE) Terminology | This Operating Guide Revision Request (OGRR) corrects and updates references to NERC standards, policies, requirements, etc. This OGRR also changes references from "ERCOT Compliance" to "Texas Regional Entity" and "ERCOT Control Area" to "ERCOT Balancing Authority" where applicable. | 08/10/2007 | ERCOT | No | 1.1, 1.2, 1.3.1, 1.4, 1.5, 1.6, 1.7.1, 1.8.5, 2.1, 2.2.6, 2.11.1, 2.11.2, 3.1.4, 3.1.4.3.5, 3.1.5, 3.1.5.2, 3.1.5.3.1, 4.6.1, 4.6.4, Attachment 4A, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.7, 5.1.7.1, 5.1.7.2, 7.2.1, 7.2.2, 7.2.3 | Withdrawn | |
| OGRR204 | Hotline Technology Update | Section 8.3.3 of the Operating Guides states that the "Hotline must be a 500 set not attached to the Market Participant’s Phone system." Proposed language will allow continued use of either older, 500 set or any newer technology which operates independently from Market Participant’s commercial market communications (settlement) phone system. | 09/20/2007 | Henry Durrwachter | No | 8.3.3 | Approved |
03/01/2008
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| OGRR205 | Modify Responsive Reserve Service Obligation | In this Operating Guide Revision Request (OGRR) Qualified Scheduling Entity (QSE) Managers Working Group is requesting to modify the ERCOT Operating Guides requirement mandating that the ERCOT Responsive Reserve Obligation is 2300 MW. The request is to increase the Responsive Reserve Obligation to 2800 MW. QSE Managers Working Group does not recommend modifying the MW thresholds for which Alerts or Emergency Electric Curtailment Plan (EECP) action is taken. | 10/03/2007 | BTU | No | 1.5, Conformance to NERC Policies, Procedures, and Reliability Standards 2.5.2.1, Obligation | Approved |
05/01/2008
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| OGRR206 | Black Start Satellite Phones | This Operating Guide Revision Request (OGRR) will require Transmission Service Providers (TSPs) that have contracted Black Start resources or designated Black Start transmission corridors located within their transmission system to have a satellite phone as a backup communication system that is compatible with ERCOT’s satellite phone. | 10/18/2007 | Dennis Starbuck on behalf of the Black Start Task Force | Yes | 4.6.5, Emergency Back Up Communication Facilities Criteria | Approved |
03/01/2008
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| OGRR207 | Administrative Changes for May 1, 2008 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) corrects and updates internal and Protocol section references in the Operating Guides. | 04/10/2008 | ERCOT | No | 1.3.1, 1.3.7, 1.1.1.4, 1.8.4, 2.2.3.1, 2.3.1, 2.5.2.2, 2.5.2.3, 2.5.3.1, 2.7.1, 2.7.2.2, 3.1.1, 3.1.4.3.2, 3.1.4.3.3, 3.1.4.6, 3.1.5, 4.1, 4.3.1, 4A.3, 6.2.3, Attachment 8A | Approved | |
| OGRR208 | Voltage Ride-Through (VRT) Requirement | This Operating Guide Revision Request (OGRR) proposes a requirement for VRT capability for all new generating units. | 04/15/2008 | Walter Reid on behalf of Wind Coalition | No | 3.1.4.1, 3.1.4.6 | Approved |
11/01/2008
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| OGRR209 | Administrative Changes for June 1, 2008 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the ERCOT Load Shed Table for 2008. | 01/15/2015 | Leo Villanueva on behalf of ERCOT | No | 4.5.3.3, EECP Steps | Approved | |
| OGRR210 | Administrative Changes for June 1, 2008 Operating Guides -- Second Set | This Administrative Operating Guide Revision Request (OGRR) updates Protocol references in the Operating Guides. | 05/19/2008 | ERCOT | No | 2.4.1, 2.4.3.2, 2.4.5.3, 2.5.1, 3.1.4.1, 4.2.4, 4.5 | Approved | |
| OGRR211 | Deletion of References to Back-to-Back Import Capacity | This OGRR deletes obsolete references to Back-to-Back (BtB) import capacity from the list of tasks ERCOT is responsible for under Emergency Electric Curtailment Plan (EECP) Step 1. It also replaces references to a "unit" in the EECP Steps with the defined term "Resource," and makes minor language corrections consistent with previous revisions to the ERCOT Protocols made pursuant to PRR726, DC Tie Scheduling Clarifications, which became effective on October 1, 2007. | 05/22/2008 | ERCOT | No | 4.5.3.3 | Approved |
10/01/2008
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| OGRR212 | EECP Media Appeal Change | This Operating Guides Revision Request (OGRR) removes required energy conservation media appeal from EECP Step Two and allows ERCOT management to issue a media appeal for energy conservation at management’s discretion. | 07/22/2008 | John Jonte on behalf of the Operations Working Group (OWG) | No | 4.5, 4.5.3, 4.5.3.1, 4.5.3.3 | Approved |
02/01/2009
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| OGRR213 | Synchronization with 775PRR, Change the name of Emergency Electric Curtailment Plan (EECP) to Energy Emergency Alert (EEA) | This Operating Guide Revision Request (OGRR) changes the name of the Emergency Electric Curtailment Plan (EECP) to Energy Emergency Alert (EEA). This OGRR also changes the defined term "Alert" to "Watch." | 10/14/2008 | ERCOT | No | 1.3.1, 1.6, 2.2.1, 2.2.2, 2.2.7.2, 3.1.4.1, 3.1.4.2, 4.1, 4.2.1, 4.2.3, 4.4, 4.4.1, 4.5, 4.5.1, 4.5.3, 4.5.3.1, 4.5.3.2, 4.5.3.3, 4.5.3.4 | Approved | |
| OGRR214 | Hotline Changes for QSEs Representing Multiple Entities | This Operating Guide Revision Request (OGRR) changes the requirement for Market Participants who represent other Entities through a Qualified Scheduling Entity (QSE) Agency Agreement to have only one (1) dedicated Hotline circuit. | 11/03/2008 | ERCOT | Yes | 8.3.3, QSE and TDSP Responsibilities | Approved |
01/01/2009
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| OGRR215 | Administrative Changes for December 1, 2008 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates Protocol references in the Operating Guides. | 11/12/2008 | ERCOT | No | 2.8, 2.11, 3.1.3.2 | Approved | |
| OGRR216 | System Security Response Group (SSRG) | This Operating Guide Revision Request (OGRR) adds requirements for the System Security Response Group (SSRG), which helps to satisfy the CIP-001-1 North American Electric Reliability Corporation (NERC) Standard. | 12/09/2008 | ERCOT | No | 3.1.7 (New) | Rejected | |
| OGRR217 | Relay Misoperation Report Format Change | This Operating Guide Revision Request (OGRR) changes the format for reporting yearly relay misoperations from a report format to a data format. | 01/06/2009 | System Protection Working Group (SPWG) | No | 6.1.2 | Approved | |
| OGRR218 | Revise System Operator Training Requirements | This Operating Guide Revision Request (OGRR) changes the five (5) day (40 hours) emergency training requirements to one (1) day (8 hours) for Qualified Scheduling Entities (QSEs) that do not operate the Generation Resource(s) they are scheduling. This OGRR also allows the actual time operating in real emergencies, such as working from a backup office during a hurricane, to satisfy the emergency training requirements. | 01/30/2009 | Shell Energy North America (US), L. P. | No | 1.8.2 | Approved | |
| OGRR219 | Time Error Correction | This Operating Guide Revision Request (OGRR) removes the requirement that ERCOT perform time error corrections for accumulated time errors exceeding five (5) seconds. | 02/04/2009 | ERCOT | Yes | 1.5 | Approved |
04/01/2009
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| OGRR220 | Synchronization with PRR799, ERCOT CEO Approval of NPRRs and SCRs Prior to Posting on MIS | This Operating Guide Revision Request (OGRR) mandates ERCOT CEO approval before NOGRRs may be posted to the Market Information System (MIS). This OGRR also allows an appeal mechanism for the submitter of the NOGRR if the ERCOT CEO’s decision is to reject the NOGRR. | 02/05/2009 | ERCOT | Yes | 1.3.1, 1.3.4.1, 1.3.7 | Approved | |
| OGRR221 | Administrative Changes for April 1, 2009 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates Protocol references in the Operating Guides. | 03/13/2009 | ERCOT | No | 2.1, 2.4.2, 2.5.2.3, 2.5.3.1, 2.5.5, 3.1.4.1, 4.2.1, 4.2.3, 4.4, 4.5, 8.1.5 | Approved | |
| OGRR222 | Allow Frequency Control Data Through ICCP Infrastructure | This Operating Guide Revision Request (OGRR) revises the required communication technology for Qualified Scheduling Entity (QSE) frequency control data from Remote Terminal Unit (RTU)-only to RTU or Inter-Control Center Communication Protocol (ICCP).This OGRR also proposes non-substantive administrative changes, such as correcting acronym and defined term usage. | 03/25/2009 | QSE Managers Working Group | Yes | 2.3.2, 8.1, 8.1.1, 8.1.6.1 | Approved |
06/08/2009
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| OGRR223 | Real Time Production Potential | This Operating Guide Revision Request (OGRR) establishes a requirement for Wind-powered Generation Resources (WGRs) to telemeter a Real Time signal indicating the Real Time Production Potential (RTPP) which will be a function of wind and turbine availability at the time. | 04/17/2009 | Wind Coalition | No | Attachment 8A: ERCOT Data Sets | Approved | |
| OGRR224 | Special Protection System (SPS) Operations Under No Contingency | This Operating Guide Revision Request (OGRR) adds additional monitoring and control requirements for Special Protection Systems (SPSs) that involve generation reduction. | 04/22/2009 | ERCOT | No | 7.2.2 | Approved | |
| OGRR225 | Quick Start Units Qualification Ramp Period | This Operating Guide Revision Request (OGRR) changes the Balancing Energy ramp period used for qualification of Quick Start Units to fourteen (14) minutes to align with PRR803, Revised Implementation Approach for PRR601. | 04/24/2009 | QMWG on behalf of WMS | No | 2.5.5 | Approved | |
| OGRR226 | Generation Resource Response Time Requirement | This Operating Guide Revision Request (OGRR) adds a new Section which documents the response times required by Generation Resource(s) upon receipt of specified valid instructions from ERCOT or Transmission Service Providers (TSPs) or Distribution Service Providers (DSPs). | 05/01/2009 | Operations Working Group (OWG) | No | 3.1.4.9 (new) | Approved | |
| OGRR227 | Administrative Changes for June 1, 2009 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the ERCOT Load Shed Table for 2009. | 05/06/2009 | ERCOT | No | 4.5.3.3 | Approved | |
| OGRR228 | Administrative Changes for June 1, 2009 Operating Guides -- Second Set | This Administrative Operating Guide Revision Request (OGRR) updates Protocol references in the Operating Guides. | 05/11/2009 | ERCOT | No | 3.1.4.1, 4.2.1, 4.2.3, 4.2.4, 4.4, 4.5 | Approved | |
| OGRR229 | Synchronization of Operating Guides with PRR804, Revisions to Section 21 Appeal Process | This Operating Guide Revision Request (OGRR) revises Section 1.3, to provide that if a motion to approve a request fails, the revision request shall be deemed rejected by the body considering it and subject to appeal, unless at the same meeting that body later votes to recommend approval, remand, or refer the revision request. This OGRR also proposes formatting and administrative changes. | 05/13/2009 | ERCOT | No | 1.3 | Approved | |
| OGRR230 | Administrative Changes for July 1 2009 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates Protocol references in the Operating Guides. | 06/10/2009 | ERCOT | No | 2.4.2, 2.5.5, 2.5.3.1, 3.2.2.2 | Approved | |
| OGRR231 | Administrative Changes for August 1, 2009 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the ERCOT Load Shed Table for 2009. | 07/07/2009 | ERCOT | No | 4.5.3.3 | Approved | |
| OGRR232 | Revise the Process for Submitting Biennial Unit Reactive Limits (Lead and Lag) | This Operating Guide Revision Request (OGRR) deletes Section 6.2.3. The form within that Section is no longer used as results are submitted through the MIS. This OGRR also updates other sections to align with the current process. | 07/09/2009 | LCRA | No | 3.1.4.3.1, 3.1.4.3.2, 3.1.4.3.3, 6.2.3 | Approved | |
| OGRR233 | Backup Control Plan Submission Process | This Operating Guide Revision Request (OGRR) proposes language changes to clarify the frequency and submittal process of backup control plans. | 08/07/2009 | OWG | No | 1.7.3, 3.1.3.1 | Rejected | |
| OGRR234 | EEA Media Appeal Correction | This OGRR corrects the Energy Emergency Alert (EEA) Level in which the media appeal for energy conservation is made. | 08/10/2009 | ERCOT | Yes | 4.5.3.3 | Approved | |
| OGRR235 | Total Transmission Capacity Correction | This Operating Guide Revision Request (OGRR) replaces the acronym Total Transfer Capability (TTC) with Total Transmission Capacity (TTC), as defined in Protocol Section 2.2. | 09/03/2009 | ERCOT | Yes | 2.2.2, 3.1.6, 2.4.1, 4.3.1 | Approved | |
| OGRR236 | Fast Response Distributed Energy Resource (DER) | This Operating Guide Revision Request (OGRR) allows for participation of Distributed Energy Resources (DERs) in Responsive Reserve Service (RRS) on an equivalent basis with synchronous condenser fast-response hydro. | 10/22/2009 | Enchanted Rock | No | 2.5.2.3, 6.2.8 | Withdrawn | |
| OGRR237 | Clarify the WGR Voltage Ride-Through Requirement | This Operating Guide Revision Request (OGRR) clarifies that the VRT clearing-time requirement for relevant WGRs is nine (9) cycles unless a site-specific requirement is documented in conjunction with the SGIAs. These revisions clarify the existing requirements; they do not change the VRT requirement. | 10/30/2009 | ERCOT | Yes | 3.1.4.6.1 | Approved | |
| OGRR238 | WGR Primary Frequency Response | The revision includes: new procedures for testing Wind-powered Generation Resource (WGR) Primary Frequency Response (new section 6.2.1.7); a new definition that applies testing of WGRs to the aggregation of all WGRs at a site; some clarifying wording for all generator’s Primary Frequency Response design requirements (2.2.5, Turbine Speed Governors); and a general change of "governor" to "Governor" in recognition of the fact that Governor is now a defined term in the protocols. | 01/21/2010 | Walter J. Reid on behalf of The Wind Coalition | No | 1.6, 2.2.5, 2.5.1, 3.1.4, 3.1.4.1, 6.2, 6.2.1, 6.2.1, 6.2.1.2, 6.2.1.3, 6.2.1.4, 6.2.1.5, 6.2.1.6, 6.2.1.7 (new), 8 | Approved |
07/01/2010
|
| OGRR239 | Administrative Changes for March 1, 2010 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates Protocol references in the Operating Guides. | 01/15/2015 | ERCOT | No | 2.5.2.3, 3.1.5 | Approved | |
| OGRR240 | CREZ Facility Protection and Control Requirements | This OGRR provides more stringent protection and control requirements for all new CREZ 345 kV Facilities. | 02/15/2010 | American Electric Power Service Corporation (AEPSC) | Yes | 7.2.2, 7.2.4, 7.2.5.1, 7.2.5.2, 7.2.5.3 | Approved | |
| OGRR241 | Special Protection System Monitoring Requirements | This Operating Guide Revision Request (OGRR) requires automated notification of Special Protection System (SPS) status and clarifies SPS arming and reporting requirements. | 03/17/2010 | ERCOT | No | 7.2.2 | Approved | |
| OGRR242 | Section 7 Revisions to Meet Pending NERC Requirements for New Construction | This Operating Guide Revision Request (OGRR) revises Operating Guide to meet the needs of the changes in the ERCOT Transmission System including CREZ requirements. The revised language reflects the majority opinion of the System Protection Working Group (SPWG) and is a result of a collaborative effort. | 03/01/2010 | SPWG | Yes | 7.2.2, 7.2.4, 7.2.5.1, 7.2.5.2, 7.2.5.3 | Withdrawn | |
| OGRR243 | Disturbance Monitoring Requirements Clarification | This Operating Guide Revision Request (OGRR) changes data recording and reporting requirements for equipment operating at 100kV or above at Facilities where fault recording equipment is required. | 03/09/2010 | SPWG | No | 7.1.2.3, 7.1.2.4 | Approved | |
| OGRR244 | Synchronization with PRR821, Update of Section 21, Process for Protocol Revision | This Operating Guide Revision Request (OGRR) revises Section 1.3 to more effectively align with the current stakeholder process. Changes were made to bring consistency between the OGRR process, where applicable; remove arbitrary or conflicting timelines; clarify commenting process; expand on a revision request being deemed rejected to include email voting for the Reliability and Operations Subcommittee (ROS) and Technical Advisory Committee (TAC); and include formatting and administrative changes. | 03/18/2010 | ERCOT | No | 1.3 | Approved | |
| OGRR245 | Alignment with NERC Reliability Standard PRC-001-1, System Protection Coordination | This Operating Guide Revision Request (OGRR) aligns the Operating Guides with the North American Electric Reliability Corporation (NERC) Reliability Standards, specifically PRC-001-1, System Protection Requirements, Section B. Requirements, R2.2. | 03/19/2010 | System Protection Working Group | No | 7.2.4 (New) | Withdrawn | |
| OGRR246 | Administrative Changes for June 1, 2010 Operating Guides | This Administrative Operating Guide Revision Request (OGRR) updates the ERCOT Load Shed Table for 2010. | 04/30/2010 | ERCOT | No | 4.5.3.3 | Approved | |
| OGRR247 | Process for Transition to Nodal Operating Guide Sections | This OGRR authorizes an orderly transition from the zonal Operating Guides to the Nodal Operating Guides. This OGRR provides a transparent mechanism to retire zonal Operating Guide sections and implement Nodal Operating Guide sections. This OGRR also requires two Notices to Market Participants: the first Market Notice 30days prior to the retirement or effective date and the second Market Notice no less than 10 days prior to the retirement or effective date. | 05/14/2010 | NOGRRTF | Yes | 1.3.7 (new) , 1.3.7.1 (new) , 1.3.7.2 (new), 1.3.7.3 (new), 1.3.7.4 (new) | Approved |