Title: Addition of System Lambda Information
Next Group:
Next Step:
Status: Approved on 03/19/2013
Effective Dates:


Date Gov Body Action Taken Next Steps
03/19/2013 BOARD Approved
03/07/2013 TAC Recommended for Approval ERCOT Board for consideration
12/13/2012 PRS Recommended for Approval TAC for consideration.
11/15/2012 PRS Recommended for Approval PRS for Impact Analysis review.

Voting Record

Date Gov Body Motion Result
03/19/2013 BOARD To approve NPRR492 as recommended by TAC in the 1/3/13 TAC Report. Passed
03/07/2013 TAC To recommend approval of NPRR492 as recommended by PRS in the 12/13/12 PRS Report. Passed
12/13/2012 PRS To endorse and forward the 11/15/12 PRS Report and the Impact Analysis for NPRR492 to TAC with a recommended priority of 2013 and rank of 820. Passed
11/15/2012 PRS To recommend approval of NPRR492 as revised by PRS. 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: Oct 26, 2012
Sponsor: Jackie Ashbaugh on behalf of Market Information System User Group (MISUG)
Urgent: No
Sections: 2.1, 4.5.1, 6.3.2, 6.6.1
Description: This Nodal Protocol Revision Request (NPRR) accounts for the addition of the System Lambda to the Locational Marginal Price (LMP) by Resource Node, Load Zone and Trading Hub report and display; and defines System Lambda within the Protocols and applies the defined term throughout.
Reason: System Lambda is the missing component needed by Market Participants to accurately calculate and shadow LMP prices.

Key Documents

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