1.5 General Duties  Operate the DAM market every day including weekends and ERCOT Holidays from 0500 to 1330 one day prior to the Operating Day.  Respond to Market Participant questions and issues after being screened internally. o Receive questions and issues from Market Participants as they are funneled to the DAM Desk. Escalate issues to ERCOT Management as needed to resolve issues prior to market deadlines. o Respond/provide answers to Market Participant questions and issues when appropriate information is available. o Maintain record of Market Participant questions, issues, and resolutions. o Refer any unresolved questions or issues to DAM Support or the DAM Desk Supervisor.
DAM Energy-Only Offers DAM Energy Bids PTP Obligation Bids PTP Obligation Bids with Links to an Option Self-Schedules Capacity, Energy, and AS trades 3 VERIFY transactions for affected QSEs w/Resources have been cancelled. 2.7.3 Day-Ahead Market Step # Procedural Steps NOTE: This task includes performing the following activities:  Check DAM clearing market application system status  Check DAM clearing market application configurations  Verify that submission validations, including AS resubmission validations the condition of Ancillary Service Insufficiency, has completed  Verify the input data  Perform/monitor the executions of the DAM clearing application functions  Take any actions necessary to ensure on-time completion of the DAM clearing process  Review the DAM clearing solutions  Take necessary actions to ensure validity/clarity of the DAM Clearing results  Check for Ancillary Service Insufficiency  Check for Electrically Similar Settlement Point List  Approve the DAM Clearing and Market Participant award solutions  Publish/store the DAM clearing solutions to the MIS database Notify Market Participants of awarded energy and AS
11 IF during the first run AS Insufficiency is observed and the AS Insufficiency Quantity is greater than the MW listed below for that AS Type for any hour, THEN decrease the Phase 1 ‘Maximum Run Time (Sec)’ in DAM UC Execution Control Parameters and ‘Maximum number of overall NSM/NCUC Iterations’ in NSM Execution Control appropriately. IF this is not the first run or there is no AS insufficiency, then proceed to Step 12. NSPIN – 2 MW REGDN – 2 MW REGUP – 2 MW RRS – 2 MW 12 CHECK to see if SCUC Convergence is set to ‘Yes’ on the “DAM Workflow” display. If Yes, go to Step 13. If not, ADJUST MIP Relative & Absolute parameters according to UC MIP PHASE 1 Objective Function as needed and go back to Step 10. 13 Navigate to UC Displays > Output Display Menu Resource Outputs > “Reduced AS Plan and AS Insufficiency”. CHECK that AS Insufficiency Status is set to “S” for all AS types for all hours. IF there is an AS Insufficiency Status of “I” and the AS Insufficiency Quantity is greater than the MW listed below for that AS Type for any hour and this is the first DAM run, go to Step 14. Otherwise, go to Step 22. NSPIN – 2 MW REGDN – 2 MW REGUP – 2 MW RRS – 2 MW 14 SET “Publish Data to MI” to “YES” and re-execute the DSP module and verify the DSP execution is completed successfully for each of the DAM hours. 15 VERIFY a save case for the Day-Ahead AS insufficiency was created. If the save case was not created, manually create the SAVECASE. If this does not run correctly, refer to Manage Day-Ahead Issues. 16 VERIFY the AS insufficiency notification is sent to QSEs and INFORM the RUC Desk. The notification messages can be viewed by going to “Participant Messages” in the “Monitoring” folder. If messages are not sent, refer to Manage Day-Ahead Issues.
VERIFY and create a HelpDesk ticket, as needed, to delete any of the following reports are posted on MIS if a DAM with AS Insufficiency publishes after 1200: Ancillary Service Offers (NP4-179CD) Aggregate Ancillary Service Offer Curve (NP4-19CD) DAM Electrically Similar Settlement Points (NP4-158CD) 17 DAM_RECLOSE time which shall be automatically set by the system to DSP completion time plus 30 minutes. 18 REVIEW / MONITOR QSE resubmission of AS offers. 19 AFTER 30 minutes, CHECK the status of “DAM Reclose” event. 20 MONITOR the status change for this event until the status shows “Completed”. Ensure that all of the recent submissions have completed their validations, before proceeding. 21 Repeat Steps 1 through 13 of this section. 22 NAVIGATE to UC Displays > Output Display Menu > System Outputs > “AS MCPC” and verify that there are no penalty costs in the “Shadow Prices” column. Penalty costs will be $1,000,000.00 or higher. If there are penalty costs, go to Step 23 to perform a Pricing Run. Otherwise, go to Step 33. 23 NAVIGATE to “DAM Workflow”. 24 SET Execution Mode to “Constrained” and “Pricing Run/Sensitivity Analysis”. 25 SET the following parameters on the “DAM Workflow” display for this Pricing Run. “Relax AS Limit” – Yes “Epsilon Threshold” – 0.500 “Relax Transmission Limit” – No “Epsilon Threshold” – 0.500 26 RUN “QP/PR/SA” and monitor its execution and completion. If this does not run successfully, contact EMMS Production Support. 27 Run “NSM Post Processing” and monitor its execution. If this does not run successfully, contact EMMS Production Support. Once completed successfully, NAVIGATE to UC Displays > Output Display Menu > System Outputs > “AS MCPC” and verify that there are no penalty costs in the “Shadow Prices” column.
28 If all DAM processes are successful, check that the results are consistent with DAM inputs at “Output Display Menu” of “UC Displays”. 29 Run “DSP/DSP2/SAV” by clicking the “DSP/DSP2/SAV” button and monitor its execution. If this does not run successfully, refer to Manage Day-Ahead Issues. 30 NAVIGATE to DAM PVT Data display and click on “PVT DATA” button. If this does not run correctly, refer to Manage Day-Ahead Issues. CLICK on the “NSM TAB DATA” button. If this does not run correctly, refer to Manage Day-Ahead Issues. VALIDATE the DAM solution. Refer to Validate / Correct DAM Prices. 31 LOG any DAM AS Insufficiency. 32 SET “Publish Data to MI” to “YES” RE-RUN “DSP/DSP2/SAV” by clicking the “DSP/DSP2/SAV” button and VERIFY save case was created. If this does not run correctly, refer to Manage Day-Ahead Issues. Then, Shut-DOWN DAM Workflow and proceed to Step 37. 33 If all DAM processes are successful, check that the results are consistent with DAM inputs at “Output Display Menu” of “UC Displays”. NAVIGATE to DAM PVT Data display and click on “PVT DATA” button. If this does not run correctly, refer to Manage Day-Ahead Issues. CLICK on the “NSM TAB DATA” button. If this does not run correctly, refer to Manage Day-Ahead Issues. VALIDATE the DAM solution. Refer to Validate / Correct DAM Prices. If any part of the solution appears to be inconsistent from expected results, the inputs and network data. After data correction and Supervisor approval: NAVIGATE to DSI Execution Control Parameters CHANGE “Retrieve MI Interface data” to ‘No’ THEN go back to step#1. 34 SET “Publish Data to MI” to “YES” 35 re-execute the DSP module and verify the DSP execution is completed successfully for each of the DAM hours.