Interconnection filings across the US grid operators.
All
ISO-NE79
MISO74
FERC72
PJM37
NYISO34
CAISO17
SPP17
ERCOT16
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
ISO-NE
15 Sep 2026
ISO-NE proposes large-load tariff and queue process under FERC show-cause order (EL26-72)
ISO New England says its proposal is a response to FERC’s June 18, 2026 show-cause order and would add new OATT rules for large loads, including transmission service types, application and study procedures, capacity designation, redispatch, load shedding, and operational arrangements. ISO-NE defines
ISO-NE
15 Sep 2026
ISO-NE proposes Large Load Cost Recovery Agreement (EL26-72)
ISO-NE’s PTO-AC presentation says FERC’s June 18, 2026 Show Cause Order in EL26-72 directed ISO-NE and the PTOs to justify the tariff or propose new large-load rules, including a pro forma cost recovery agreement to address cost shifting. The presentation adds that the Section 205 filing is due on o
ISO-NE
ISO-NE proposes large-load market design and settlement rules for New England (EL26-72)
ISO New England says its New England large-load proposal responds to FERC’s June 18, 2026 show-cause order and would change market rules for metering, price-based re-dispatch, co-located and electrically proximate generators, behind-the-meter generation, and settlement. ISO-NE proposes a Non-Firm La
ISO-NE
ISO-NE proposes new large-load operational requirements in OATT Part II.J (EL26-72)
ISO New England says it is responding to FERC’s June 18, 2026 show cause order by proposing new large-load operational requirements in Part II.J of the OATT, including hourly forecasts, telemetry, communications, monitoring equipment, remote disconnect capability, and a default ramp-rate limit of 20
FERC
FERC MISO Transmission Owners file motion to intervene and comments supporting MISO filing (ER26-3552)
According to FERC eLibrary, this document is a procedural filing: “Motion to Intervene and Comments of MISO Transmission Owners in support of the 08/18/2026 filing by Midcontinent Independent System Operator, Inc. under ER26-3552.” The file itself is titled “MISO Transmission Owners' Motion to Inter
FERC
FERC comments on MISO zero-injection generator interconnection framework (ER26-3552)
FERC’s eLibrary shows Advanced Energy United comments in response to MISO’s proposal to establish a Zero Injection Generator Interconnection Agreement framework under ER26-3552, a policy filing relevant to large-load interconnection and regulatory risk. The document states: “Comments of Advanced Ene
CAISO
10 Sep 2026
CAISO schedules Large Loads Initiative stakeholder meeting and draft final proposal comment period
According to CAISO, the ISO will host a hybrid stakeholder meeting on Oct. 1, 2026 for the Large Loads Initiative, post a draft final proposal on Sep. 24, 2026, and open comments due by Oct. 15, 2026. CAISO also says stakeholders will review the proposal before it goes to the Board of Governors and
ISO-NE
10 Sep 2026
FERC orders ISO-NE to file Tariff fixes for erroneous payments and settlement errors (EL26-45-000)
In a September 10, 2026 order, FERC found ISO New England’s Tariff “unjust and unreasonable” because it lacked provisions to accept and refund erroneous or improper market payments and to make billing corrections, and ordered ISO-NE to file compliance revisions within 120 days. FERC said ISO-NE’s pr
PJM
10 Sep 2026
PJM proposes reliability standards for large-load ride-through (no docket)
PJM Inside Lines reports that PJM has proposed new interconnection reliability requirements for large loads, including data centers and crypto-mining facilities, to require facilities to stay connected during grid disturbances and “riding through” voltage and frequency excursions. The article says t
ISO-NE
ISO-NE summarizes 2026 transmission planning base cases and queue-linked projects (2026 Transmission Planning Base Case Library)
ISO-NE says its 2026 Transmission Planning Base Case Library will be used for Needs Assessments and NERC/NPCC Compliance Assessments, and that the 2028, 2031, and 2029/2036 base cases include reliability upgrades that were “Proposed, Planned, or Under Construction” in the March 2026 RSP Project List
MISO
08 Sep 2026
MISO announces fifth ERAS cycle with 15 projects totaling 7.3 GW (fifth ERAS cycle)
MISO said its fifth Expedited Resource Addition Study (ERAS) cycle includes “15 proposed projects totaling approximately 7.3 gigawatts (GW) of new capacity,” spanning “MISO’s North, Central and South regions” and expected “to be in service by 2029.” MISO also said that since ERAS launched, “58 proje