Autoresearch: PJM FERC ER26-3380 comment deadline still 2026-08-21 — no new order

Generated by /autoresearch on 2026-08-19. Step-1 gap-fill on pjm-capacity-prices-to-nuclear-premium / the 08-17–08-18 open question "does the PJM collar get made permanent?" Compact one-round scan. Priors skipped (headless). Context: vault/projects/stock-market.

Summary

Nothing material has moved at FERC since the 08-16 SemiAnalysis ingest. Docket ER26-3380-000 (PJM Reliability Backstop Procurement, filed 2026-07-31, accession 20260731-5214) still has comment date 5 p.m. ET 2026-08-21. Requested effective date 2026-09-29. The auction window is still Sep 30 – Oct 21 2026, results by Dec 2 (one week before the 2029/30 BRA opens Dec 9). Cap still $555/MW-day vs the last BRA collar of $325/MW-day.

The additional mechanism already on the wiki — Interim Resource Adequacy Service (IRAS): single-site loads ≥50 MW curtailable from 2026-06-01 2027 unless they bring their own new capacity — remains a filed proposal, not an accepted tariff. FERC has not ruled.

Implication for pjm-capacity-prices-to-nuclear-premium: the 08-16 modeling-artifact challenge (SemiAnalysis: ~$11.6B overcharge; 3.8 GW of uncredited winter gas) is still the live input into this week's docket. SemiAnalysis said it would submit the analysis as a comment. Watch whether FERC requires the 6.8 GW target to be recalculated before contracts to 2043 are signed — that is the falsifier-grade tell for treating PJM capacity prices as a durable structural signal. Do not re-rate CEG on the deadline itself. A comment close is not a ruling.

Findings

Theme 1 — Calendar confirmed, no order

No FERC order, deficiency letter, or comment-period extension turned up in this pass.

Theme 2 — IRAS is the second filing, still proposed

PJM's two-part plan: (1) Reliability Backstop Procurement to buy new supply; (2) IRAS / "connect and manage" so post-2027-06-01 large loads that do not bring their own generation are curtailable before pre-emergency load management, inside a ten-minute window. NRDC's Tom Rutigliano: "Requiring future data centers to bring their own power might be the single best thing they could have done to stabilize the grid" (Utility Dive). That is confirmatory of the siting-gate / stranded-capacity rotation already hypothesized in siting-gate-plus-stranded-capacity-to-demand-side-beneficiary-rotation — not a new chain, and not yet law.

Theme 3 — What would actually move the nuclear-premium chain

The 08-16 SemiAnalysis piece is already ingested. This pass adds no new number to step 1 of pjm-capacity-prices-to-nuclear-premium. The load-bearing near-term event is FERC's response after 08-21, not the deadline. If FERC (a) accepts the $555 cap and 6.8 GW target as filed, the modeling-artifact challenge failed to bite and the capacity-price signal stands (with the SemiAnalysis caveat still on the page). If FERC (b) requires seasonal accreditation / winterization credit before the auction, the 6.8 GW target shrinks and the "record PJM print is scarcity" claim weakens — that would be a calibrate-worthy update for CEG's capacity-payment leg.

Implications for the wiki

• pjm-capacity-prices-to-nuclear-premium: no step-status change. Dated catalyst remains FERC ER26-3380 comments 2026-08-21 / auction Sep 30.
• No new ticker. No new mechanism. No conviction change.
• Do not mint a duplicate "large-load curtailment" chain — IRAS maps onto the existing siting-gate hypothesis.

Provenance

• Fetched: Utility Dive, PJM files backstop at FERC.
• Fetched: Federal Register docket list, ER26-3380-000 comment 8/21/26 (PDF, *.gov-adjacent federalregister mirror).
• Consulted, not re-fetched: 2026-08-16-feed-semianalysis-12b-of-us-ratepayers-money-wasted-on-a-modeling-mistake (already ingested 08-17).
• Grokipedia anchor skipped — docket-status check, not encyclopedic.
• X pass not enabled.
• Failed: none material.

Open questions

• Does SemiAnalysis actually file the winter-rating comment before 17:00 ET Friday?
• Does FERC issue a deficiency letter that slips the Sep 30 auction?