Title Gross and Net MW/Mvar Data Reporting
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Status Approved on 01/16/2007


Date Gov Body Action Taken Next Steps
01/16/2007 BOARD Approved
12/01/2006 TAC Recommended for Approval Board consideration
11/16/2006 PRS Recommended for Approval TAC consideration
09/21/2006 PRS Recommended for Approval Review of Impact Analysis
03/23/2006 PRS Referred Analysis
01/19/2006 PRS Referred ROS review and report back to PRS in March

Voting Record

Date Gov Body Motion Result
01/16/2007 BOARD Approved as recommended by TAC. Passed
12/01/2006 TAC Recommend approval of PRR647 as recommended by PRS and to have this PRR implemented as soon as practicable within 18 months, but no later than 1/1/09, if such delay is necessary to accommodate nuclear plants. Passed
11/16/2006 PRS Motion to forward the IA, CBA and Recommendation Report to TAC for consideration. Passed
09/21/2006 PRS Recommend approval as revised by OWG comments. Passed
03/23/2006 PRS Instruct ROS to develop a cost benefit assessment to include an assessment of the effect on system reliability, and to investigate potential alternatives to implementing this PRR Passed
01/19/2006 PRS Refer PRR647 to ROS for determination of ERCOT needs and identification of data already being reported to ERCOT by Market Participants, and direct ROS to report to PRS at its March meeting Passed


Status: Approved
Date Posted: Dec 5, 2005
Sponsor: ERCOT
Urgent: No
Description: Adds a requirement for a QSE representing a Resource to supply both gross and net MW and Mvar data to ERCOT for use in the operations model.
Reason: (1) In order to correctly model reactive capability and assess voltage security with ERCOT™s Voltage Stability Analysis Tool (VSAT), it is necessary to know the gross (generator terminal) output of Generation Resources, both MW and Mvar. (2) This PRR provides for compliance with NERC Standard VAR-001-0: R9, which states€“ Each Generator Operator shall provide information to its Transmission Operator on the status of all generation reactive power resources, including the status of voltage regulators and power system stabilizers.

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