MISO

Twelve comment windows close this week, every one of them a routine filing in a combined notice of filings. Meanwhile two of MISO's large load workstreams are due for their next update today.

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; nothing closes if you only watch. They sit alongside two more open items on the same theme, 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 this week

All twelve of this week's closings are routine per-docket windows, and 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).

Coming up

Comments by Thursday, August 20: two American Transmission Company filings in the same combined notice.

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).

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 Wednesday, September 23: NERC's 2022-05 Modifications to CIP-008 Reporting Threshold, the long-runway item on the list.

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 list stands at 69 items still open and tracked, 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.