Southwest Power Pool

Two show cause revision requests landed this week, the large-load thread runs through both, and five comment windows closed in a single day. Eighteen comment windows close in the next seven days. Here is the week, in order of what you can still do about it.

Corrected November 7, 2026. The first version of this edition said the comment window on Show Cause Order Non-Transmission Facilities had already shut on August 7. That window ran through August 21; August 7 is the date SPP's list first showed. The first version also left out other open electricity windows. This version lists them, repairs the revision request links, and describes the 142 as tracked items rather than open ones.

The through line: show cause, twice

SPP posted two new revision requests carrying "Show Cause Order" in the title this week. Show Cause Order - Transmission Service to Large Load is open for comment through September 1, and it is the one to read first: the large-load question has been the running story in this footprint all summer, and this docket puts it squarely into the tariff process. Its sibling, Show Cause Order Non-Transmission Facilities, arrived on the tracked list this week. Its comment window runs through August 21; SPP's list first showed August 7, the day it was posted.

Also new and worth a look: the Storage Reliability and Flexibility Initiative and BP 7700 RFP Criteria Points Weighting, both taking comments through August 24.

Closing in the next seven days

Three rule changes still have their windows open, briefly:

Submission Date Alignment closes today, August 12; if it is on your list, it is a same-day turn.

Tomorrow, August 13: Business Practice 8200 Effective Load Carrying Capability. Accreditation mechanics; if capacity value matters to your fleet, this is the one.

Monday, August 17: VRL Ramp Rates.

FERC's window for post-technical conference comments on improved market and planning software, Docket AD10-12-017, closes Wednesday, August 19.

Fourteen routine FERC filings also close between August 13 and 19, mostly interconnection agreements and service-agreement housekeeping: ER26-3251-000 and ER26-3252-000 (the 4942 Katy Energy Storage and 4732R1 Crooked Creek GIAs, August 13), ER26-2401-001 and ER26-2403-001 (the Incorporated County of Los Alamos deficiency responses, August 14), the Leeward, Blue Valley Grid, and NextEra interconnection filings (August 14), Avangrid's meter agent agreement (August 14), the SPS NITSA cancellation (August 14), ER26-3263-000 (the 2969R5 Associated Electric Cooperative NITSA NOA, August 14), Evergy Metro and North Iowa Municipal NITSA updates (August 17), and two surplus interconnection filings from NextEra Development and Longroad (August 19). Silence on a routine filing is the usual answer.

What moved

August 11 was closing day: five comment windows shut at once. Interchange Transactions Clarification and Enhancement, Uninstructed Load Deviation, Enhance Forecast Submission, BP 1700 Profiling Transmission Service, and Price Adaptive Load Service all move to their working groups with whatever arrived by the deadline. Intermediate Planning closed August 5.

Coming up

August 20: comments due on the Tariff Clean-Up Filing and the FERC-725S information collection extension.

August 21 is a crowded date: the CPP ICS Facility Analysis and Affected System notification and Show Cause Order Non-Transmission Facilities revision requests, ER26-2720-001 (the OMPA NITSA deferral), ER26-3348-000 (Empire District's tariff filing), NERC's Risk Management for Third-Party Cloud Services comment period, and six separate Energy Authority PTP agreements (4927, 4930, 4931, 4939, 4940, and 4941), all due the same day.

August 24: Storage Reliability and Flexibility Initiative, BP 7700 RFP Criteria Points Weighting, initial comments in the financial forms rulemaking (Docket RM26-12-000), the FERC-516 information collection extension, and ER26-2638-001 (amended revisions to adjust the RUC make whole payment distribution).

August 26: a run of SPP tariff revisions starts with the Order 719 LSE attestation clarification and ER26-3425-000 (removing MSRs from the Calibration Adjustment Process). Two surplus interconnection GIAs close the same day, ER26-3424-000 (4978 Blue Valley Grid) and ER26-3428-000 (4934 Beavertail Storage II).

August 27: the run continues with ER26-3447-000 (Order 831 offer caps and GHG adder updates), ER26-3448-000 (the SHOC multiplier update), and ER26-3449-000 (the Markets+ business day definition), plus ER26-2781-001 (the 4193R3 City of Paris NITSA NOA). Several carry an effective date of 12/31/9998, which is tariff shorthand for indefinitely, not a plan for the year 9998.

August 28: ER26-3452-000 (the 4980 Kinsley Solar surplus interconnection GIA) and ER26-3455-000 (the 4058R2 Missouri Electric Commission NITSA NOA cancellation).

August 31: NERC's 2025-01 Canadian-Specific Revisions to EOP-012-3 comment period ends.

September 1: the large-load show cause window closes.

September 8: four information collection extensions, FERC-556, FERC-912, FERC-561, and FERC-555.

September 22: reply comments in the financial forms rulemaking (Docket RM26-12-000).

September 23: NERC's CIP-008 reporting threshold modification comment period ends.

September 25: the FERC-603 information collection extension.

The wide view

142 items sit on the tracked list for this edition, including OnSite Fuel, RC Operating Criteria Clarifications, and DAMKT VER Participation Calculation Clean Up.

Every date and document above is the source's own, linked as published. Want this across several markets, matched to what your organization owns and does? That is the Pro tier.