Southwest Power Pool

A Resource Advisory for the West Balancing Authority Area headed this week's grid conditions, and Markets+ tariff revisions fill part of the comment calendar from today through November 4.

Corrected November 7, 2026. The first version of this edition said seven comment windows closed this week and 11 items arrived, put the first Markets+ window on October 30, and left out other open electricity windows. This version lists them, corrects those counts and that date, describes the 169 as tracked items rather than open ones, and repairs the revision request links.

Grid conditions this week

October 21: SPP declared a Resource Advisory for the West Balancing Authority Area (BAA), to take effect Wednesday, October 21, at 5 p.m. CT until an anticipated end time of Thursday, October 22, at 1 a.m. CT.

October 25: KCPL GMOC hub reached $365/MWh in the interval ending 6:00 PM CT.

October 25: 3 constraints bound at a shadow price of $500/MWh or more; the largest was TEMP90 26027 (LN MONETT - AUR1241) at $1,389/MWh, 9:15 PM CT.

October 24: GSEC hub reached $288/MWh in the interval ending 3:00 AM CT.

October 24: 18 constraints bound at a shadow price of $500/MWh or more; the largest was TMP555 29231 (XFMR POTTER S - POTTER S) at $1,482/MWh, 2:10 AM CT.

October 23: 8 constraints bound at a shadow price of $500/MWh or more; the largest was TMP842 31429 (LN VBI5 - ADABELL) at $1,494/MWh, 7:05 PM CT.

October 22: SPPNORTH hub reached $278/MWh in the interval ending 10:30 AM CT.

October 22: 4 constraints bound at a shadow price of $500/MWh or more; the largest was TP1213 33525 (LN SKST - IDALIA) at $1,479/MWh, 8:15 AM CT.

October 21: SPPNORTH hub reached $346/MWh in the interval ending 5:00 PM CT.

October 21: 7 constraints bound at a shadow price of $500/MWh or more; the largest was TP1298 33546 (LN RLND PRK - MIDTOWN) at $1,477/MWh, 10:30 AM CT.

The through line: Markets+ on the comment calendar

Markets+ runs through the comment calendar from today on. The first Markets+ window to close is ER27-50-000, revisions to the Markets+ Tariff to add co-located resource functionality, today, Monday, October 26. ER27-97-000, revisions to the Markets+ Tariff to enhance the Market Storage Resource Design, follows on Friday, October 30. Comments are then due Wednesday, November 4 on three more: revisions to remove Real-Time capability (to be effective 12/31/9998), revisions to properly reflect Greenhouse Gas Pricing Comp., and an update to the Markets+ Transmission Service Provider OASIS Queue. A separate tariff filing to add Marginal GHG Price in Day-Ahead Market Results takes comments until Tuesday, November 3.

Closing this week

Today, Monday, October 26: SPP Dynamic modeling Requirements and the FERC-725S information collection.

Today, Monday, October 26: Standards Processes Manual Revisions | Modernization of Standard Processes and Procedures Implementation.

Routine filings also close this week. Today, Monday, October 26: ER26-2764-000, the 1628R32 Western Farmers Electric Cooperative refund report, and ER27-50-000, the Markets+ filing above. On Wednesday, October 28: ER26-3625-001, an amended tariff filing on revisions for SPP generating facilities, and ER27-61-000, revisions to clarify outage documentation references. On Friday, October 30: ER26-2947-000, the refund report on the Amended and Restated Emergency Energy Transactions Agreement; ER26-3068-000, the 3474R2 Clarksville Connected Utilities refund report; and ER27-97-000, the Markets+ filing above.

What moved

Comment windows closed on October 23 for the Short-term Reliability Project (STRP) Agreement and FERC Order 881 RDS Revisions, and on October 19 for the 2030 Planning Reserve Margin and Bilateral Settlement Schedules Clarification of Limitation Language. SPP-RR0700, SPP-RR0701, SPP-RR0754, SPP-RR0756, SPP-RR0796, and SPP-RR0799 are no longer on the tracked list.

Notices published this week, none of them a comment window: Sunshine Act Meetings (October 22), the third supplemental notice of the Commissioner-Led Reliability Technical Conference (October 20), and a notice of joint meeting of the Federal Energy Regulatory Commission and the Nuclear Regulatory Commission (October 20).

Coming up

Tuesday, November 3: comments due on the Revision Request Update: Intermediate Planning Manual and the Marginal GHG Price in Day-Ahead Market Results filing.

Wednesday, November 4: comments due on the three Markets+ filings above, plus non-substantive revisions to Attachment H of the Tariff (to be effective 4/1/2026) and the 5014, 5015, and 5016 Public Service Company of Oklahoma GIAs (each to be effective 9/23/2026), and on SPP Tariff Attachment O, Addendum 4: FERC Order No. 1920 SERTP Interregional Coordination and SPP Tariff Attachment O, Addendum 6: FERC Order No. 1920 Western Interregional Coordination.

Thursday, November 5: comments due on the FERC-603 information collection extension.

Friday, November 6: comments due on DPP Window Extension Clarification.

Monday, November 16: comments due on Focused Portfolio and on Commission Information Collection Activities (FERC-725A, 725L, and 725Z).

Friday, November 20: comments due on the Standard Authorization Request for NERC's Project 2026-03 Computational Loads Disturbance Performance, in a comment period open since October 22.

Monday, December 14: comments due on Commission Information Collection Activities (FERC-725B).

The wide view

Ten comment windows close this week, 15 items arrived in the last seven days, and 169 items sit on the tracked list for this edition, among them Multi-Day Economic Commitment.

Dates and documents are the source's own. For the same coverage across several markets, with the weekly written edition, see the Pro tier.