The SO performs security analyses on a Day Ahead and Real-Time basis and ensures that all Forced Outages are entered into the Outage Scheduler. The SO shall obtain or arrange to provide Emergency Energy over the DC Tie(s) on behalf of ERCOT. The SO shall issue appropriate OCN’s, Advisories, Watches, and Emergency Notices, and coordinate the reduction or cancellation of clearances, re-dispatch of generation, and request, order, or take other action(s) that the SO determines necessary to maintain safe and reliable operating conditions on the ERCOT System in accordance with ERCOT Protocols, Operating Guides, and NERC Reliability Standards. The SO will implement and terminate ERCOT Corrections, and will determine the need for and implement the operation of a QSE on Constant Frequency Control for loss of ERCOT’s Load Frequency Control System. 2.2 Communication Procedure Purpose: To ensure proper communication is used to reduce the possibility of miscommunication that could lead to action or inaction harmful to the reliability of the grid.. Protocol Reference 6.5.7.8 6.5.8 Guide Reference 3.1.3 NERC Standard COM-002-4 Version: 1 Revision: 5 Effective Date: May 1, 2018 Step Action Three-Part Communication NOTE Operating Instructions and Dispatch Instructions are synonymous and both require ‘three-part communication’. to the Communications Protocols document for requirements. 1 When issuing Operating Instructions, use three-part communication: Issue the Operating Instruction Receive a correct repeat back Give an acknowledgement 2 Many scripts have been placed throughout the procedures as a reminder of communication. However, a script cannot be provided for every scenario. Effective three-part communication skills are mandatory. Hotline Call Communication
Consider requesting Operations Support Engineer to manual SCADA values (be aware that this could skew the results), If it is determined to delay HRUC, follow the “HRUC Failure/Timeline Deviation” procedure. E-Tags REVIEW REFERENCE DISPLAY: Market Operation>Reliability Unit Commitment> HRUC Displays> DSI Displays> DSI Data Processes> DSI DC Tie Schedule Market Operation>Reliability Unit Commitment> HRUC Displays> DSI Displays> External Input Data> MI COP Verify that E-tags are being imported into the MMS: IF: Individual schedules need to be reviewed; THEN: Go to the MI COP display and filter ‘ERCOT’ as the QSE name. Verify REVIEW REFERENCE DISPLAYS: Market Operation>EMS Interface>EMSI Workflow Parameters Market Operation>EMS Interface>EMSI Workflow Messages EMSI has completed successfully within the last hour Market Operation>Reliability Unit Commitment>HRUC Displays>UC Displays>HRUC UC Execution Control Parameters Market Operation>Reliability Unit Commitment>HRUC Displays>NSM Displays>NSM Execution Control Parameters Market Operation>Reliability Unit Commitment>HRUC Displays>DSI Displays>DSI Execution Control Parameters “Retrieve MF Interface Data” flag set to “Yes”. “Retrieve MI Interface Data” flag set to “Yes”. “Retrieve EMS Interface Data” flag set to “Yes”. “Check Market Status set to “Yes”, “Use Save case set to “No” DSI EXECUTE: The DSI sequence; VERIFY: For error or warning messages and take necessary action if needed to correct the errors, The input data is properly transferred. If NOT: Contact Help Desk immediately to determine the cause and expected time of resolution. Manual Commitment REVIEW REFERENCE DISPLAYS: Market Operation>Reliability Unit Commitment>HRUC Displays>DSP Displays> DSP RUC Commitment/Decommitment Summary Market Operation>Reliability Unit Commitment>HRUC Displays>DSI Displays> External Data>MF Generator Parameters
4.3 Review, Approve and Post DRUC Results Procedure Purpose: To work collaboratively with Market Operations Support Personnel in reviewing, and if necessary, modifying DRUC data, to approve and post the final DRUC results. Protocol Reference 4.4.8 5.1 (9) 5.3(3) 5.5.1(9) 5.5.2 5.5.3(2) 6.4.9.1(3) Reference NERC Standard IRO-008-2 R1, R2, R3 TOP-002-4 R1, R2, R3, R4, R4.1, R4.2, R4.3, R4.4, R5, R7 Version: 1 Revision: 27 Effective Date: December 28, 2018 Step Action NOTE See Desktop Guide Common to Multiple Desks Section 2.16 if the savecase function fails when running RUC Monitor REVIEW REFERENCE DISPLAYS: Market Operation>Reliability Unit Commitment>DRUC Displays>Workflow>DRUC Workflow Market Operation>Reliability Unit Commitment>DRUC Displays>Workflow>DRUC Workflow Messages Review REVIEW REFERENCE DISPLAY: Market Operation>Reliability Unit Commitment>DRUC Displays>UC Displays>Output Display Menu>System Outputs>Summary When DRUC has completed. If necessary, work with Market Operations and Operations Support Engineer to review the results. Monitor the DRUC Workflow display to determine when it is complete, ENSURE: The workflow has completed before the study is approved and published, IF: The study is approved before it completes, Incorrect RUC deployments are sent to QSE’s THEN: Make hotline call to notify QSE’s that deployments for DRUC are invalid, Notify the Manager of System Operations and/or Control Room Operations Manager immediately,
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Manual Change History Procedure Ver/Rev Reason for Effective Date All Sections 1.0 / 0 New procedures for all sections for Nodal implementation November 28, 2010 2.3 2.4 3.2 3.3 4.3 1.0 / 1 1.0 / 1 1.0 / 1 1.0 / 1 1.0 / 1 Added new procedure “Phase Shifter Tap Settings” Updated Note Updated step “Monitor” Updated steps “Commit/De-Commit”, “Violated Constraints” and “HRUC Committed” Updated step “Review”, “A/S Insufficiency from DAM” and “DRUC Committed” December 1, 2010 2.3 4.2 4.3 4.4 1.0 / 2 1.0 / 1 1.0 / 2 1.0 / 1 Updated “Review Weather Data Information” step 2 Added steps “DRUC Committed for Capacity Shortage” and “Projected Reserve Capacity Shortage” Updated steps “DAM Timeline Deviation, DAM Failure, DRUC Delay & Software Failure” change to step 1 December 15, 2010 3.2 4.3 4.1 4.4 6.1 1.0 / 2 1.0 / 3 1.0 / 2 / 2 1.0 / 1 Updated step “HRUC Committed Units”, “Manual Commitment”, added steps “Excess Generation” and “Canceling RUC commitments” Updated step DRUC Committed Units”, “Manual Commitment, added steps “Excess Generation” and “Canceling RUC commitments” Updated step “DAM Timeline Deviation”, DAM Failure”, DRUC Delay” Updated scripts Updated script January 31, 2011 3.2 3.3 3.5 4.3 4.4 6.1 1.0 / 3 1.0 / 2 / 0 /4 / 3 1.0 / 2 Updated step Canceling RUC Commitments Deleted HRUC Timeline Deviation and updated HRUC Failure/Timeline Deviation Added new section Updated step Canceling RUC Commitments Updated step DAM Timeline Deviation in DAM Timeline Deviation/Failure Timeline not Met in section DRUC Timeline Deviation/Failure Updated Watch and Emergency Notice March 25, 2011 2.5 3.2 3.3 4.3 6.1 1.0 / 1 1.0 / 4 1.0 / 3 1.0 / 5 1.0 / 3 Updated Monthly MIS Posting Updated step Canceling RUC Commitments Updated step Failure Updated step Canceling RUC Commitments Updated step 1 in Watch and Emergency Notice April 22, 2011