Title: HASL Offset Provision
Next Group:
Next Step:
Status: Withdrawn


Date Gov Body Action Taken Next Steps
03/22/2012 PRS Deferred/Tabled PRS consideration
01/19/2012 PRS Deferred/Tabled PRS consideration
12/15/2011 PRS Deferred/Tabled PRS consideration

Voting Record

Date Gov Body Motion Result
03/22/2012 PRS To table NPRR429 and to refer the issue to WMS. Passed
01/19/2012 PRS To table NPRR429 and refer the issue to ROS. Passed
12/15/2011 PRS To table NPRR429 for one month. 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Status: Withdrawn
Date Posted: Nov 22, 2011
Sponsor: Morgan Stanley
Urgent: No
Sections: 2.1, 3.9, 3.9.1,,
Description: This Nodal Protocol Revision Request (NPRR) creates a High Ancillary Service Limit (HASL) Offset option that allows Qualified Scheduling Entities (QSEs) to move their HASL to a lower MW value if desired. The HASL Offset is added to other Ancillary Services being provided by the Resource to develop the HASL change.
Reason: Currently the HASL calculation is performed by ERCOT and may require the Resource to operate in an undesirable range. The only current method of correcting this is to artificially move the High Sustained Limit (HSL) of the Resource down. The HSL change artificially limits the quantity of Responsive Reserve (RRS) the Resource can provide. This offset will allow the QSE to reflect an accurate HSL and still operate the Resource in a desirable range.

Key Documents

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