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SCR768

Summary

Title Automatic Non-Spin Redeployment and Deployment Based on Resource Availability
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Next Step
Status Approved on 04/17/2012

Action

Date Gov Body Action Taken Next Steps
04/17/2012 BOARD Approved
03/01/2012 TAC Recommended for Approval ERCOT Board consideration of SCR768
02/23/2012 PRS Recommended for Approval TAC consideration of SCR768
01/19/2012 PRS Recommended for Approval PRS Impact Analysis review
11/17/2011 PRS Deferred/Tabled PRS initial consideration

Voting Record

Date Gov Body Motion Result
04/17/2012 BOARD To approve SCR768 as recommended by TAC in the 3/1/12 TAC Report. Passed
03/01/2012 TAC To recommend approval of SCR768 as recommended by PRS in the 2/23/12 PRS Report. Passed
02/23/2012 PRS To endorse and forward the 1/19/12 PRS Report and Impact Analysis for SCR768 to TAC with a recommended priority of 2012 and rank of 680. Passed
01/19/2012 PRS To recommend approval of SCR768 as submitted. Passed
11/17/2011 PRS To table SCR768. Passed

Background

Status: Approved
Date Posted: Nov 2, 2011
Sponsor: ERCOT
Urgent: No
Sections:
Description: This System Change Request (SCR) modifies the Market Management System (MMS) Automatic Redeployment function such that it accounts for the delay involved in deployment of Off-Line Non-Spinning Reserve (Non-Spin) Resources.
Reason: The current automatic redeployment implementation results in periods of reduced Non-Spin capacity during deployment as newly deployed Resources may take 25 minutes to show as deployed while recalled Resources may remove their deployment immediately. As such, it is not used. Since the current implementation deploys shortly after the start of each hour based on telemetry only, it also prevents a full hour deployment of Off-Line Non-Spin Resources, which could occur if the system provided advanced notice of deployment.

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