Title Related to NPRR1178, Expectations for Resources Providing ERCOT Contingency Reserve Service
Next Group
Next Step
Status Approved on 06/29/2023
Effective Dates


Date Gov Body Action Taken Next steps
06/29/2023 PUCT Approved
06/20/2023 BOARD Recommended for Approval PUCT for consideration
05/23/2023 TAC Recommended for Approval Board for consideration
05/04/2023 ROS Recommended for Approval TAC for consideration

Voting Record

Date Gov Body Motion Result
06/29/2023 PUCT To approve NOGRR253 and accompanying ERCOT Market Impact Statement as presented in Project No. 54445, Review of Rules Adopted by the Independent Organization Passed
06/20/2023 BOARD To recommend approval of NOGRR253 as recommended by TAC in the 5/23/23 TAC Report Passed
05/23/2023 TAC To recommend approval of NOGRR253 as recommended by ROS in the 5/4/23 ROS Report Passed
05/04/2023 ROS To grant NOGRR253 Urgent status; to recommend approval of NOGRR253 as submitted; and to forward to TAC NOGRR253 and the 5/3/23 Impact Analysis Passed


Status: Approved
Date Posted: May 3, 2023
Sponsor: ERCOT
Urgent: Yes
Sections: 2.3,,, 4.8.1, and 4.8.2
Description: This Nodal Operating Guide Revision Request (NOGRR) aligns the Nodal Operating Guide language regarding ECRS and Non-Spin with the revisions proposed in NPRR1178, as well as the Protocol language approved in NPRR1096, Require Sustained Two-Hour Capability for ECRS and Four-Hour Capability for Non-Spin. This NOGRR also clarifies that ERCOT may manually deploy Load Resources other than Controllable Load Resources that are providing ECRS or Responsive Reserve (RRS) to maintain a minimum 500 MWs of Physical Responsive Capability (PRC) reserves on SCED-dispatachable Resources to continuously balance the Demand with supply while maintaining the stable grid frequency for smaller disturbances.
Reason: Addresses current operational issues

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