VCMRR #42 · Revision Request

VCMRR042 SO2 and NOx Emission Index Prices Used in Verifiable Cost Calculations

Approved sponsor Luminant posted 2024-07-23 ercot.com

WMS Feb 5 '25
TAC Feb 27 '25
BOARD Apr 8 '25
PUCT May 15 '25

ReasonStrategic Plan Objective 2

Created2024-08-07

Approved2025-05-15

Sections Affected

2.6 and Appendix 5

Summary

This Verifiable Cost Manual Revision Request (VCMRR) adds the use of seasonal sulfur dioxide (SO2) and nitrogen oxide (NOX) prices obtained from indices to calculate emission costs from May through September. Annual prices would continue to be used from October through April.

Timeline

2024
Jul 23
WMSFiled by Luminant
- 042VCMRR-01 SO2 and NOx Emission Index Prices Used in Verifiable Cost Calculations 072324 Jul 23 '24 · Revision Request
Aug 7
WMS WMS Meeting
WMSDeferred/Tabled Referred → RCWG
“to table VCMRR042 and refer the issue to the Resource Cost Working Group (RCWG).” — Passed

→ Language Consideration

Motion Carries 7.5–0 roll call
- 042VCMRR-02 ERCOT Comments 080224 Aug 2 '24 · Revision Request Comments
Aug 8
Listed without action at 1 meeting
- PRS Meeting Aug 8 '24
Sep 4
RCWG RCWG Meeting - Webex Only
- 042VCMRR-03 WMS Ballot 080724 Aug 12 '24 · Revision Request Ballot
- 042VCMRR-04 WMS Report 080724 Aug 12 '24 · Committee Report
Sep 11
Listed without action at 5 meetings (Sep 11 '24 – Nov 6 '24)
- WMS Meeting Sep 11 '24
- PRS Meeting Sep 12 '24
- WMS Meeting - Webex Only Oct 7 '24
- PRS Meeting Oct 17 '24
- WMS Meeting Nov 6 '24
Nov 14
PRS PRS Meeting
- 042VCMRR-05 Luminant Comments 111124 Nov 11 '24 · Revision Request Comments
Nov 15
Listed without action at 1 meeting
- RCWG Meeting - Webex Only Nov 15 '24
Dec 4
WMS WMS Meeting
WMSRecommended for Approval Amended by the Nov 11 '24 Luminant comments
“to recommend approval of VCMRR042 as amended by the 11/11/24 Luminant comments” — Passed

→ Impact Analysis Consideration

Motion Carries 7.5–0 roll call
Dec 12
PRS PRS Meeting
- 042VCMRR-06 WMS Ballot 120424 Dec 9 '24 · Revision Request Ballot
- 042VCMRR-07 WMS Report 120424 Dec 9 '24 · Committee Report
2025
Jan 8
WMS WMS Meeting - Webex Only
WMSDeferred/Tabled
“to table VCMRR042” — Passed

→ Impact Analysis Consideration

Motion Carries 7.5–0 roll call
- 042VCMRR-08 ERCOT Comments 121924 Dec 19 '24 · Revision Request Comments
Feb 5
WMS WMS Meeting
WMSRecommended for Approval Forwarded → TAC Amended by the Feb 4 '25 ERCOT comments priority 2026 · rank 4720
“to endorse and forward to TAC the 12/4/24 WMS Report, as amended by the 2/4/25 ERCOT comments as revised by WMS, and the 1/31/25 Impact Analysis for VCMRR042, with a recommended priority of 2026 and rank of 4720” — Passed

→ Revision Request Consideration
- 042VCMRR-09 WMS Ballot 010825 Jan 13 '25 · Revision Request Ballot
- 042VCMRR-10 WMS Report 010825 Jan 13 '25 · Committee Report
- 042VCMRR-11 Impact Analysis 013125 Jan 31 '25 · Staff Report
- 042VCMRR-12 ERCOT Comments 020425 Feb 4 '25 · Revision Request Comments
Feb 12
PRS PRS Meeting
Motion Carries 7–0 roll call

“To endorse the WMS-recommended priority of 2026 and rank of 4720 for VCMRR042”
- 042VCMRR-13 WMS Ballot 020525 Feb 10 '25 · Revision Request Ballot
- 042VCMRR-14 WMS Report 020525 Feb 10 '25 · Committee Report
Feb 27
TAC TAC Meeting
TACRecommended for Approval
“to recommend approval of VCMRR042 as recommended by WMS in the 2/5/25 WMS Report” — Passed

→ Revision Request Consideration

Motion Passes 30–0 roll call
- 042VCMRR-15 PRS Ballot 021225 Feb 20 '25 · Revision Request Ballot
- 042VCMRR-16 PRS Comments 021425 Feb 20 '25 · Revision Request Comments
Apr 7
BOARD Board of Directors Meeting
- 042VCMRR-17 TAC Ballot 022725 Mar 4 '25 · Revision Request Ballot
- 042VCMRR-18 TAC Report 022725 Mar 28 '25 · Committee Report
Apr 8
BOARDEmail Vote / Unlisted Meeting
BOARDRecommended for Approval
“to recommend approval of VCMRR042 as recommended by TAC in the 2/27/25 TAC Report” — Passed

→ Revision Request Consideration
May 15
PUCT
PUCTApproved
“to approve VCMRR042 and accompanying ERCOT Market Impact Statement as presented in Project No. 54445, Review of Protocols Adopted by the Independent Organization” — Passed
- 042VCMRR-19 Board Report 040825 Apr 10 '25 · Committee Report
—
Posted since the last meeting
- 042VCMRR-20 PUCT Report 051525 May 20 '25 · Committee Report