Title: As-Built Hub and Load Zone Calculation
Next Group:
Next Step:
Status: Approved on 04/10/2018
Effective Dates:


Date Gov Body Action Taken Next Steps
04/10/2018 BOARD Approved
03/22/2018 TAC Recommended for Approval Revision Request Consideration
03/08/2018 PRS Recommended for Approval Revision Request Consideration

Voting Record

Date Gov Body Motion Result
04/10/2018 BOARD To approve NPRR868 as recommended by TAC in the 3/22/18 TAC Report. Passed
03/22/2018 TAC To recommend approval of NPRR868 as recommended by PRS in the 3/8/18 PRS Report with a proposed effective date of upon Board approval. Passed
03/08/2018 PRS To grant NPRR868 Urgent status; to recommend approval of NPRR868 as submitted and to forward NPRR868 and the Impact Analysis to TAC. 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 1, 2018
Sponsor: ERCOT
Urgent: Yes
Sections: 2.1, 3.4,,,,,, 4.5.1,, and 7.5.1
Description: This NPRR modifies the Hub Bus and Load Zone definitions and price calculations to account for the current usage of power flow buses as opposed to Electrical Buses in the DAM and CRR Auction systems. In some cases there can be differences between power flow buses and Electrical Buses, and it is more suitable for power flow buses to be used. Real-Time currently uses Electrical Buses for the Hub and Load Zone calculations. Further, the rewritten formulas provide clarification for the scenario when buses are de-energized in contingency analysis.
Reason: Addresses current operational issues

Key Documents

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