Title: Synchronization with NPRR258 and Alignment of Primary Frequency Response Test Procedures
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    Next Step:
    Status: Approved on 12/01/2011
    Effective Date: 01/01/2012


    Date Gov Body Action Taken Next Steps
    12/01/2011 TAC Approved
    11/10/2011 ROS Approved ROS Language Consideration

    Voting Record

    Date Gov Body Motion Result
    12/01/2011 TAC To approve NOGRR082 as recommended by ROS in the 11/10/11 ROS Report and the Impact Analysis for NOGRR082 Passed
    11/10/2011 ROS To grant NOGRR082 Urgent status Passed

    Vote tallies here reflect individual votes, not the weight of the votes by market segment. Affirmative votes are not recorded in these vote tallies. For additional details on the voting record, please consult the Recommendation or Action Report, or the official vote tally if available, as posted in the key documents.


    Status: Approved
    Date Posted: 10/07/2011
    Sponsor: ERCOT
    Urgent: Yes
    Sections: 8C
    Description: This Nodal Operating Guide Revision Request (NOGRR) synchronizes the Nodal Operating Guides with Nodal Protocol Revision Request (NPRR) 258, Synchronization with PRR824 and PRR833 and Additional Clarifications, and revises the frequency response test procedure to be applicable to Intermittent Renewable Resources (IRRs).
    Reason: Upon implementation of NPRR258, Protocol Section, Regulation Service and Generation Resource/Controllable Load Resource Energy Deployment Performance, ERCOT will use High Sustained Limit (HSL) for calculating Estimated Primary Frequency Response (EPFR) which is a component of Generation Resource Energy Deployment Performance (GREDP) calculation. This NOGRR will align the EPFR requirement with how the test shall be conducted for IRRs since IRRs can have significant difference between installed capacity and HSL.

    Key Documents