MISO

Seventeen comment windows close in the next seven days: sixteen routine filings in combined notices of filings, and FERC's request for post-technical conference comments on improved market and planning software. Meanwhile two of MISO's large load workstreams are due for their next update today.

Corrected November 7, 2026. The first version of this edition said twelve comment windows closed this week, every one of them a routine filing. It left out other open electricity windows, among them FERC's request for post-technical conference comments, which is not a routine filing. This version lists them and describes the 69 as tracked items rather than open ones.

The through line: large load

Two of MISO's dashboard workstreams, Large Load Interconnection Reliability Requirements and Non-Firm Large Load, both list today, Wednesday, August 12, as their next update. These are scheduled steps, not comment windows. They sit alongside other tracked items on the same theme, among them Reserve Enhancements for Large Load and Operational Reliability Requirement - Large Load Operational Forecasting Requirements, so the theme is worth a standing spot on your watch list this month.

Closing in the next seven days

Sixteen of the seventeen closings are routine per-docket windows. Today, Wednesday, August 12, closes ER26-3240-000 (SA 4803, ITC Midwest and NextEra Energy), and Thursday, August 13 closes ER26-3246-000 (MISO and Michigan Electric Transmission Company), ER26-3247-000 (MISO and Ameren Illinois), and ER26-3248-000 (the NEET Midwest Company Specific Schedule 48). Friday, August 14 is the busiest day: EL14-12-016 (MISO, Great River Energy, and South Mississippi Electric Power Association), the paired Entergy Texas deficiency responses ER26-2373-001 (SA 4748) and ER26-2374-001 (SA 4749), ER26-3259-000 (SA 4809, METC and Heartwood Storage), ER26-3265-000 (American Transmission Company and MISO), and ER26-3267-000 (an Attachment X modification of Order 2023). After the weekend, Monday, August 17 closes ER26-3275-000 (SA 4808, NIPSCO); Tuesday, August 18 closes ER26-3295-000 (Duke Energy Indiana) and ER26-3298-000 (MISO and Southern Indiana Gas); and Wednesday, August 19 closes ER26-3308-000 (SA 4812, ATC-WPL GIA E0037), ER26-3309-000 (SA 4813, Entergy Louisiana), and ER26-3310-000 (SA 4814, NIPSCO and Mayapple Solar).

The seventeenth is not a routine filing: post-technical conference comments on improved market and planning software, Docket AD10-12-017, also close Wednesday, August 19.

Coming up

Comments by Thursday, August 20: two American Transmission Company filings in the same combined notice, plus the FERC-725S information collection extension.

Comments by Friday, August 21: two MISO filings, SA 2680, an NSP second revised GIA (J290) and Attachment GGG on MHVDC Limited Operations, plus NERC's 2023-09 Risk Management for Third-Party Cloud Services.

Comments by Monday, August 24: SA 4817, METC and Hackett Energy Storage GIA (E0004), plus initial comments in the financial forms rulemaking (Docket RM26-12-000) and the FERC-516 information collection extension.

Comments by Tuesday, August 25: the crowded day, with seven windows in one combined notice: SA 4826 (ITC Midwest and Interstate Power and Light), SA 4821 (NSP, E0041), an American Transmission Company filing, SA 4820 (MEC and Beeline Solar, GEN-2018-043), SA 4823 (City of Rochester, E0028), and two Ameren Illinois tariff filings.

Comments by Wednesday, August 26: three windows in another combined notice: an Ameren Illinois filing, SA 4827 (NSP, E0040), and SA 4824 (NIPSCO, E0042).

Comments by Friday, August 28: two more Ameren Illinois filings, one and another, both published today.

Comments by Monday, August 31: NERC's 2025-01 Canadian-Specific Revisions to EOP-012-3.

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

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

Comments by Wednesday, September 23: NERC's 2022-05 Modifications to CIP-008 Reporting Threshold.

Comments by Friday, September 25: the FERC-603 information collection extension.

Tuesday, August 18 (next updates, not deadlines): five dashboard workstreams are due at once: 31+ Day Planned Outage Rule Proposals, Application of Forecasted and Real-time Ambient Adjusted Ratings, Dynamic Regulation Reserve Requirement, Dynamic Ramp Capability Product Requirement (Uncertainty Component), and Primary Frequency Response and GIA Limits.

Wednesday, August 19 (next updates): LBA Transmission Loss Calculation in PRA and Evaluation of Outage Policies in the Resource Adequacy Construct.

Thursday, August 20 (next update): Hybrid Resource Participation Model (fka IR086).

The wide view

MISO's tracked list for this edition stands at 69 items, and 21 items arrived in the last seven days alone, including two notices with no comment deadline attached: a supplemental notice of the Reliability Technical Conference and the institution of a Section 206 proceeding, with refund effective date, for NorthWestern Corporation. This is the first MISO edition, so the week-over-week view of what moved or resolved begins next week.

Dates and documents throughout are the source's own; this edition adds no interpretation. Want the same coverage across several markets? That is the Pro tier.