Interconnection filings across the US grid operators.
All
ISO-NE120
FERC105
MISO78
PJM47
NYISO39
CAISO18
SPP18
ERCOT16
MISO
04 Dec 2026
MISO issues Large Load modeling requirements for 50 MW+ loads and computational loads (BPM-03X)
MISO’s Business Practices Manual for Large Loads says Large Load facilities are those with “Demand of 50 MW or more” at a single substation behind one or more points of withdrawal, while “Computational Load” is a subset with “25 MW or more of Demand from information technology equipment.” The manual
ISO-NE
10 Nov 2026
ISO-NE agenda includes integration of large loads (Nov. 10, 2026)
At ISO New England’s November 10, 2026 open board meeting, the agenda included management reports on “Integration of Large Loads,” signaling policy discussion relevant to large-load interconnection in Massachusetts and the ISO-NE footprint.
MISO
30 Oct 2026
Issue Submission Report: Generation and Load Alignment
MISO’s Issue Submission Report on “Generation and Load Alignment” says it is “proposing a new process that aligns large load studies with the generation needed to serve those loads,” and that doing so will “apply consistent assumptions, reduce timing mismatches, and produce more optimized network up
FERC
22 Oct 2026
FERC and NRC announce joint meeting on grid reliability and managing load increases (AD06-6-000)
FERC and the NRC will hold a joint public meeting at NRC Headquarters to discuss “grid reliability” and “managing load increases,” with staff from both agencies and the North American Electric Reliability Corporation briefing the Commissioners, according to FERC.
FERC
22 Oct 2026
FERC announces joint FERC-NRC meeting on grid reliability and managing load increases (AD06-6-000)
FERC and the NRC say they will hold a joint public meeting at NRC Headquarters in Rockville, Maryland, to discuss “grid reliability” and “managing load increases,” with staff from both agencies and NERC briefing the Commissioners.
ISO-NE
20 Oct 2026
ISO-NE reduces reserve non-performance factor to 110% (non-performance factor updates)
ISO New England said it will reduce the reserve non-performance factor from 115% to 110% effective Operating Day November 1, 2026, following a review of historical contingency response and reserve performance. The presentation also notes prior and related day-ahead ancillary service changes, includi
ISO-NE
16 Oct 2026
ISO-NE comments on Connecticut CES highlight large loads, interconnection clustering, and FERC reforms
In comments to Connecticut DEEP, ISO New England said it is developing large-load reforms “in response to FERC’s show cause order and the Bring Your Own New Capacity (BYONC) resource adequacy requirement,” including “streamlined application and study procedures,” “enhanced cost transparency and cost
ISO-NE
16 Oct 2026
ISO-NE updates day-ahead ancillary services model effective Nov. 1, 2026
ISO New England’s Oct. 16, 2026 memo says it is updating its day-ahead ancillary services statistical model effective Nov. 1, 2026. ISO-NE explains that the model is used “to calculate hourly strike prices for day-ahead ancillary services” and “the expected close-out component of day-ahead energy op
FERC
FERC Chairman Swett concurs on draft NEPA policy statement for gas project air-emissions review (PL26-3-000)
According to FERC Chairman Swett’s concurrence on the draft policy statement in Docket No. PL26-3-000, FERC is proposing “targeted, strategic, and legally durable reforms” to how it reviews operational air emissions for Commission-jurisdictional natural gas project applications. Swett says the Commi
FERC
FERC Commissioner Chang dissents on air-quality policy statement for gas and LNG certificates (PL26-3-000)
In FERC Commissioner Chang’s dissent in Docket No. PL26-3-000, the Commission’s policy statement would create “a new method for assessing air quality impacts” for pipeline certificate and LNG authorization applications under the NGA and NEPA, and would “no longer require air dispersion modeling for
FERC
FERC Rosner concurrence on Duke Energy Carolinas large-load tariff protections (ER26-2691-000, ER26-2691-001)
FERC Commissioner Rosner’s concurrence in ER26-2691-000 / ER26-2691-001 says Duke Energy Carolinas’ tariff lacked protections “safeguarding residential consumers and small businesses from bearing the costs of transmission for new large loads such as data centers,” and that Duke’s proposal adds “mean
ISO-NE
15 Oct 2026
ISO-NE files Q3 2026 capital budget and project report (ER27-_____-000)
In its October 15, 2026 filing to FERC, ISO New England Inc. said its Third Quarter 2026 Report covers “actual capital expenditures incurred by the ISO through 2025 on multi-year capital projects, year-to-date spending during 2026, forecasts for capital projects for the remainder of 2026, and foreca