Title: Required Telemetry for Operational Awareness and PDCWG Analysis
Next Group:
Next Step:
Status: Approved on 06/09/2015
Effective Dates:


Date Gov Body Action Taken Next Steps
06/09/2015 BOARD Approved
05/28/2015 TAC Recommended for Approval Board for consideration
05/14/2015 PRS Recommended for Approval TAC for consideration
04/16/2015 PRS Recommended for Approval PRS for Impact Analysis consideration

Voting Record

Date Gov Body Motion Result
06/09/2015 BOARD To approve NPRR687 as recommended by TAC in the 5/28/15 TAC Report Passed
05/28/2015 TAC To recommend approval of NPRR687 as recommended by PRS in the 5/14/15 PRS Report Passed
05/14/2015 PRS To endorse and forward to TAC the 4/16/15 PRS Report and Impact Analysis for NPRR687 Passed
04/16/2015 PRS To recommend approval of NPRR687 as amended by the 4/14/15 ERCOT comments 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: Mar 20, 2015
Sponsor: GDF SUEZ Energy Marketing NA
Urgent: No
Sections: 2.1 and
Description: This Nodal Protocol Revision Request (NPRR) requires the telemetry of any Non-Frequency Responsive Capacity (NFRC) to ERCOT for operational awareness. This NPRR allows the Performance, Disturbance, Compliance Working Group (PDCWG) to accurately measure the Primary Frequency Response (PFR) of Generation Resources while using ERCOT collected data necessary to analyze each Measurable Event. Revisions to the User Guide, “ERCOT Nodal ICCP Communications Handbook” will be required as a result of this NPRR.
Reason: NPRR527, Required Combined Cycle Telemetry for Operational Awareness and PDCWG Analysis, required the telemetry of NFRC for combined cycle units only. However, as recognized in North American Electric Reliability Corporation (NERC) Reliability Standard, BAL-001-TRE-1, and within Nodal Operating Guide Section 2.2.8, Performance/Disturbance/Compliance Analysis, other generator types may also have power augmentation that is not frequency responsive. ERCOT should have the same operational awareness of this NFRC and the PDCWG should have the clarification for when this power augmentation is to be considered in PFR calculations.

Key Documents

Related Content