Grid Operator Watchlist — Sources & Citations

ERCOT — Electric Reliability Council of Texas, Inc. (ERCOT)

9 rulings & filings · 4 transmission items · 8 dated milestones

Queue: ~474 GW of large-load interconnection requests (ERCOT deck: 474.1 GW by 2031, 474.7 GW by 2033) — more than 5x the all-time peak demand record. Of that, only ~205 GW was preliminarily eligible for… · ~90% data centers — ERCOT's deck shows 90.2% (420,812 MW) of large-load MW identified as data center as of June 2026; ERCOT's June 18, 2026 release cited… (as of 2026-07-29) ercot.com →
Texas Senate Bill 6 — large-load interconnection, curtailment, and remote-disconnect standards (SB 6, 89th Texas Legislature (2025)) — (2025-06-20) utilitydive.com →
Batch Zero large-load interconnection framework (PGRR145 + NPRR1325) (ERCOT Planning Guide Revision Request 145; Nodal Protocol Revision…) — (2026-06-18) ercot.com →
PUCT proposed rule 16 TAC §25.194 — large load interconnection standards (SB 6 implementation) (PUCT Project No. 58481) — (2026-03-12) dlapiper.com →
PUCT order in Docket 59220 — first SB 6 net-metering/co-location ruling, affirming curtailment authority over co-located data… (PUCT Docket No. 59220) — (2026-07-23) utilitydive.com →
Gov. Abbott directive — comprehensive verification and audit of data centers in the ERCOT queue; pause on new data center… (Gubernatorial directive to PUCT Chairman Thomas Gleeson and ERCOT…) — (2026-08-03) utilitydive.com →
ERCOT Market Notice M-A080326-01 — suspension of Batch Zero classification deadline (ERCOT Market Notice M-A080326-01) — (2026-08-03) ercot.com →
ERCOT good-cause-exception filing and PUCT approval; audit timeline set (RFIs now, reports due December 10, 2026) (PUCT Control No. 59142 (Item 42)) — (2026-08-10) utilitydive.com →
PUCT Project 58484 — evaluation of transmission cost recovery (4CP methodology) for large loads (PUCT Project No. 58484) — (2025-08-01) klgates.com →
SB 6 companion rulemakings: Project 58479 (co-location net metering), Project 58480 (large-load forecasting, ≥10 MW definition),… (PUCT Project Nos. 58479, 58480, 58482) — (2026-01) ashurstperkinscoie.com →
Permian Basin Reliability Plan (including Texas's first 765 kV import paths) — approved; TSPs (including AEP Texas, LCRA) routing and constructing utilitydive.com →
Texas 765 kV Strategic Transmission Expansion Plan (STEP) — plan adopted via ERCOT 2024 RTP; component projects moving through Regional Planning… epeconsulting.com →
765 kV STEP Eastern Backbone (AEP Texas, CPS Energy, Oncor, CenterPoint Energy) — ERCOT Board approved Dec 9, 2025; CCN filings and construction phases follow rtoinsider.com →
Batch Zero actionable transmission plan (large-load interconnection study output) — in progress; timeline under revision due to the audit pause ercot.com →
2026-08-31 — Original deadline for developers to return corrected dynamic model data (no extensions under PGRR145) — subject to the good-cause-exception extension of deficiency notifications granted August 20,… gibsondunn.com →
2026-09 — ERCOT issues Requests for Information (RFIs) to data center developers through TSPs/DSPs for the Batch Zero eligibility audit (≥75 MW) and community impact review (≥25 MW computational loads);… utilitydive.com →
2026-11-01 — Quarterly Stability Assessment — up to 17 large-load projects (mostly data centers, ~6.6 GW peak over a five-year ramp) may participate under the PUCT-approved good cause exception utilitydive.com →
2026-12-10 — ERCOT's target to file the Batch Zero Eligibility Verification Report and Community Impact Review Report with the PUCT — the gate for the interconnection pause to lift and Batch Zero… utilitydive.com →
2026-12-31 — SB 6 statutory deadline for the PUCT to amend wholesale transmission cost-allocation rules (4CP review, Project 58484) ashurstperkinscoie.com →
2027 — Planned opening of Batch 1 applications (summer 2027) and publication of the final transmission plan for the entire batch (fall 2027), per ERCOT's June 18, 2026 announcement — timing now dependent… ercot.com →
2027-04-09 — Original Batch Zero Interconnection Study results deadline (2028–2032 MW allocations + transmission plan) — ERCOT has stated 'We will not have the study done by April 9, 2027'; replacement date not… utilitydive.com →
2027-06-08 — Original deadline for Interconnecting Large Load Entities to execute interconnection agreements and meet financial security and site-control standards to confirm Batch Zero capacity allocations… ercot.com →

PJM — PJM Interconnection, L.L.C.

9 rulings & filings · 3 transmission items · 6 dated milestones

Queue: 715 projects, 201.5 GW nameplate accepted for study (Cycle 1) · 811 proposals received before the window closed (as of Aug 3, 2026) insidelines.pjm.com →
PJM Interim Resource Adequacy Service (IRAS), Large Load Registry, and Bring Your Own New Capacity filing (ER26-3515-000) — (2026-08-13) federalregister.gov →
PJM Reliability Backstop Procurement (RBP) (ER26-3380-000) — (2026-07-31) pjm.com →
FERC show-cause order to PJM on large-load interconnection (FPA Section 206) (EL26-67-000) — (2026-06-18) foley.com →
FERC order directing PJM co-located load tariff reform (EL25-49-000) — (2025-12-18) bdlaw.com →
FERC order on PJM co-location compliance filing (accepting in part, rejecting in part) (EL25-49-002) — (2026-06-18) hklaw.com →
PJM Expedited Interconnection Track (EIT) — (2026-06-09) climatesolutionslaw.com →
Talen-Amazon Susquehanna co-location saga (amended ISA rejection and front-of-meter restructuring) (ER24-2172) — (2024-11-01) utilitydive.com →
Capacity auction price records driven by data-center load (2025/26 through 2028/29 Base Residual Auctions) — (2024-07-30) utilitydive.com →
DOE emergency orders during July 2026 heat wave (data-center curtailment authority) — (2026-07) utilitydive.com →
2024 RTEP Window 1 awards (765-kV west-east backbone: MARL and Valley Link) — Approved Feb. 25, 2025; in development utilitydive.com →
2025 RTEP Window 1 awards ($11.8B, including Dominion 525-kV HVDC to Data Center Alley) — Approved Feb. 12, 2026; in development, completion by June 2032 (Dominion HVDC) utilitydive.com →
Cycle 1 interconnection process and queue acceleration (supply side) — In progress (cited in PJM's July 2026 EL26-67 informational report) climatesolutionslaw.com →
2026-09-03 — Comments due at FERC (5 p.m. ET) on PJM's Interim Resource Adequacy Service / Large Load Registry / BYONC filing, Docket ER26-3515-000 federalregister.gov →
2026-09-16 — Interested-party responses due on the six RTO/ISO show-cause responses in EL26-67 through EL26-72, including PJM's EL26-67 filing hklaw.com →
2026-09-30 — Reliability Backstop Procurement central bid window (ER26-3380), pending FERC approval; PJM said it would seek approval to run the backstop in September electroneconomics.substack.com →
2026-10-12 — Requested effective date for IRAS, Large Load Registry, and BYONC tariff revisions (ER26-3515) — FERC action expected on or before this date under PJM's 60-day request federalregister.gov →
2026-12-02 — Reliability Backstop Procurement results due, before the next Base Residual Auction opens electroneconomics.substack.com →
2027-06-01 — New Large Load cutoff: loads entering service or adding incremental demand (≥50 MW at a single electrical site) after this date without sufficient capacity become subject to IRAS curtailment… datacenterknowledge.com →

MISO — Midcontinent Independent System Operator, Inc. (MISO)

12 rulings & filings · 4 transmission items · 6 dated milestones

Queue: Generation interconnection queue: 192 GW of pending interconnection requests plus 87 GW of signed GIAs not yet built (2026 OMS-MISO Survey). Large-load (data center) connection requests: no… · Not disclosed as a queue share. Forecast context: FERC's June 18, 2026 show cause order cited 43% compound annual growth in MISO data center capacity since… (as of 2026-07-09) utilitydive.com →
FERC Order to Show Cause on large-load integration (MISO) (EL26-70-000 (195 FERC ¶ 61,212)) — (2026-06-18) akingump.com →
MISO generation-adequacy informational report (EL26-70) (EL26-70-000) — (2026-07-20) climatesolutionslaw.com →
MISO abeyance motion and FERC grant — show-cause response deadline moved to November 16, 2026 (EL26-70-000) — (2026-08-03) pranavaraparla.com →
Zero-Injection Generator Interconnection Agreement (ZGIA) tariff filing (ER26-3552-000 (accession 20260818-5152)) — (2026-08-18) govinfo.gov →
Large Load Parallel Study Process (planned tariff filing) (Not yet assigned) — (2026-09) climatesolutionslaw.com →
Large Load Interconnection Reliability Requirements (LLWG-2026-3) tariff package (No FERC docket confirmed as of 2026-08-24) — (2026-06-29) cdn.misoenergy.org →
Expedited Resource Addition Study (ERAS) — generation fast lane (ER25-2454 (revised ERAS filing)) — (2025-06) utilitydive.com →
Attachment GGG (Merchant HVDC Connection Procedures) and Improvements (PAC-2024-6) (No 2026 docket confirmed) — (2026-05-12) misoenergy.org →
2026/27 Planning Resource Auction results (n/a (auction under Module E-1)) — (2026-04-28) misoenergy.org →
2026 OMS-MISO Resource Adequacy Survey (n/a) — (2026-06-03) utilitydive.com →
State commissions' complaint against LRTP Tranche 2.1 benefits/cost allocation (EL25-109-000) — (2025-07-30) utilitydive.com →
FERC rulemaking: Interconnection of Large Loads to the Interstate Transmission System (RM26-4-000) — (2026-06-18) ferc.gov →
LRTP Tranche 2.1 — 765 kV Midwest backbone — Approved by MISO Board December 12, 2024; state siting/regulatory approvals in progress;… utilitydive.com →
MTEP24 total package (with Tranche 2.1) — Approved December 12, 2024 utilitydive.com →
2026 LRTP work — Midwest continuation and new LRTP South — In development through the Planning Advisory Committee, 2026 zeroemissiongrid.com →
Expedited Project Review (EPR) — Active per MISO's Large Load Additions page misoenergy.org →
2026-09-08 — Comments due at FERC on MISO's Zero-Injection GIA filing (ER26-3552-000) govinfo.gov →
2026-09-30 — MISO's target for filing the Large Load Parallel Study Process tariff changes at FERC climatesolutionslaw.com →
2026-10-18 — Requested effective date of the ZGIA (ER26-3552-000) if accepted by FERC govinfo.gov →
2026-11 — MISO Large Load Working Group meetings scheduled (framework items: firm service step-up, reliability requirements, telemetry/PMU, forecasting, reserve products) climatesolutionslaw.com →
2026-11-16 — MISO show-cause response due in EL26-70 under the granted 90-day abeyance (answers due December 16, 2026) — the deadline that will produce MISO's binding large-load tariff package pranavaraparla.com →
2027-08-31 — ERAS (generation fast-lane) sunset or 68-project cap, per third-party tracker — relevant to developers pairing new generation with large loads interconnectionqueue.org →

SPP — Southwest Power Pool, Inc.

9 rulings & filings · 4 transmission items · 5 dated milestones

Queue: ERAS (Expedited Resource Adequacy Study) fast-track generation queue: ~13.3 GW across 36 active requests; separately, SPP told FERC that large-load interconnection request submissions peaked at… · Per a consultant analysis (CES), ~26.4 GW of interconnection requests since 2020 from facilities >100 MW, of which ~9 GW are data centers specifically; ~7 GW… (as of 2026-07-20) climatesolutionslaw.com →
High Impact Large Load (HILL) study process, HILLGA, and Load Limited Resource Interconnection Service (LLRIS) (ER26-247-000; order 194 FERC ¶ 61,031) — (2025-10-24) spp.org →
Conditional High Impact Large Load Service (CHILLS) — non-firm bridge transmission service (ER26-1323-000; order 195 FERC ¶ 61,196) — (2026-02-10) spp.org →
Expedited Resource Adequacy Study (ERAS) — one-time fast-track generation interconnection process (ER25-2296-000; order 192 FERC ¶ 61,062) — (2025-07-21) spp.org →
FERC Section 206 show cause order on large and co-located loads (one of six issued to all RTOs/ISOs) (EL26-68-000; order 195 FERC ¶ 61,213) — (2026-06-18) spp.org →
SPP informational report on resource adequacy for large loads (EL26-68 compliance) (EL26-68-000) — (2026-07-20) climatesolutionslaw.com →
Price Adaptive Load / Price Adaptive Load Service (PAL/PALS) market participation model (none yet (FERC filing targeted on or before Nov 16, 2026)) — (2026) climatesolutionslaw.com →
Seasonal planning reserve margins — 36% winter / 16% summer (SPP Planning Criteria Rev. 4.6 (published Feb 10, 2026)) — (2026) spp.org →
Consolidated Planning Process (CPP) — merged transmission/interconnection/load planning (FERC accepted March 13, 2026; effective March 1, 2026 (filed…) — (2026-03-13) hklaw.com →
CHILLS refinement revision requests RR767 / RR768 (SPP stakeholder revision requests (not yet a FERC filing)) — (2026) epeconsulting.com →
2025 Integrated Transmission Plan (ITP) portfolio — board-approved Nov 5, 2025; notices to construct being issued, with some 765-kV NTCs… publicpower.org →
2026 ITP & CPP Transition Assessment — in progress (2026 study cycle) spp.org →
Western RTO expansion transmission integration — complete (effective April 1, 2026) spp.org →
Highway/Byway cost allocation and large-load network upgrades (EL26-68 scope) — under review in Docket EL26-68 (responses due Aug 17, 2026) spp.org →
2026-09 — ERAS Generator Interconnection Agreements anticipated for execution (36 requests, ~13.3 GW of expedited resource-adequacy generation) climatesolutionslaw.com →
2026-09 — Next quarterly SPP HILL Q&A session for large-load customers (series scheduled through at least September 2026) spp.org →
2026-09-16 — Interested-party comments on the Aug 17 show-cause responses (parties generally have ~30 days after the regional filings to respond in EL26-68) microgridmedia.com →
2026-11-16 — Target date (on or before) for SPP's PALS (Price Adaptive Load Service) FERC filing — new market participation model and lowest-priority non-firm service for flexible, price-responsive large loads climatesolutionslaw.com →
2029 — Summer planning reserve margin requirement rises from 16% to 17%; SPP's 2025 Summer Resource Adequacy Report projects the existing-resources BA reserve margin at just 1.9% in 2029 and -1.6% by 2030… spp.org →

CAISO — California Independent System Operator Corporation (CAISO)

11 rulings & filings · 4 transmission items · 9 dated milestones

Queue: CAISO runs no ISO-level large-load interconnection queue — load interconnects through the utilities. PG&E, where CAISO says data-center growth is most concentrated, reported a 12.7 GW data-center… · Pipeline figures are data-center-specific by PG&E's definition; CAISO's 2025-26 Transmission Plan attributes more than half of its 38 approved projects and… (as of 2026-06-30) energyconnects.com →
FERC Order to Show Cause and Instituting Section 206 Proceeding — CAISO large loads and co-located loads (EL26-71-000 (195 FERC ¶ 61,214)) — (2026-06-18) caiso.com →
CAISO Informational Report to FERC on large loads and co-located loads (EL26-71-000) — (2026-07-20) caiso.com →
CAISO Motion for Abeyance in EL26-71; FERC acceptance (EL26-71-000) — (2026-08-03) caiso.com →
CAISO Large Loads Considerations Straw Proposal (FILI/FLIP, 50 MW definition) (Large Loads stakeholder initiative (feeds Section 205 filing in…) — (2026-08-11) stakeholdercenter.caiso.com →
CAISO Large Load Technical Requirements Straw Proposal and technical data request (Large Loads stakeholder initiative) — (2026-06-15) stakeholdercenter.caiso.com →
CAISO comments on FERC ANOPR on interconnection of large loads to the interstate transmission system (RM26-4) — (2025-11-21) caiso.com →
CPUC Order Instituting Rulemaking on California Advanced Electric Rate Design (data-center rate design) (R.26-04-009) — (2026-04-09) docs.cpuc.ca.gov →
PG&E Electric Rule 30 — transmission-level interconnection tariff (interim approval and cost-allocation phase) (A.24-11-007) — (2024-11-21) stoel.com →
CPUC approvals of site-specific PG&E data-center interconnection agreements (STACK, Microsoft, Google) (Resolution E-5420; Resolution E-5439; Advice Letter 7785-E) — (2025-10-30) stoel.com →
SB 57 (Padilla) — data-center cost-impact assessment mandate (implemented through CPUC R.26-04-009) — (2025) docs.cpuc.ca.gov →
CPUC February 2026 procurement order — 6 GW of net qualifying capacity by 2032 for load growth (CPUC Integrated Resource Planning (per CAISO's EL26-71 report)) — (2026) caiso.com →
CAISO 2025-2026 Transmission Plan (Board-approved) — approved by CAISO Board of Governors May 19, 2026 (per CAISO news release) caiso.com →
Silicon Valley large-load transmission project in draft 2025-26 plan — carried into approved plan (as Bay Area corridor expansion) rtoinsider.com →
2026-2027 transmission planning process (higher load forecast) — in progress caiso.com →
PG&E transmission-level interconnection buildout for data centers (Rule 30) — active; interim tariff in effect, cost-allocation decision pending at CPUC energyconnects.com →
2026-09-02 — Comments due on CAISO Large Loads Considerations straw proposal (FILI/FLIP, 50 MW definition) caiso.com →
2026-09-21 — CAISO posts draft final proposal in the Large Loads initiative caiso.com →
2026-09-28 — Stakeholder meeting (hybrid) on the draft final proposal stakeholdercenter.caiso.com →
2026-10-12 — Comments due on draft final proposal caiso.com →
2026-10-20 — Western Energy Market Governing Body meeting on the proposal (if necessary) caiso.com →
2026-10-28 — CAISO Board of Governors vote on the Large Loads proposal stakeholdercenter.caiso.com →
2026-11-16 — CAISO Federal Power Act Section 205 filing at FERC responding to the EL26-71 show-cause order (the enforceable step following the abeyance FERC accepted August 14, 2026; abeyance capped at 90 days) caiso.com →
2027 — CAISO cluster 17 generator interconnection application window opens; CAISO intends to launch IPE 6 stakeholder initiative in 2026 or early 2027 to have enhancements in place beforehand (relevant to… caiso.com →
2027-01-01 — CPUC assessment due under SB 57 (Stats. 2025, ch. 647) on cost impacts of new large transmission-connected data-center loads; being executed in R.26-04-009 docs.cpuc.ca.gov →

NYISO — New York Independent System Operator, Inc.

8 rulings & filings · 3 transmission items · 7 dated milestones

Queue: ~12 GW of large-load demand (48 projects) as of Dec 31, 2025 per NYISO; ~11.9 GW across 48 projects as of June 22, 2026 per third-party tracker; up from 6 projects / 1 GW in 2022 · EO 62 recites nearly 12 GW of data-center load requests in the NYISO queue as of May 2026 — i.e., the large-load queue is essentially all data-center-driven;… (as of 2026-06-22) harrisbeachmurtha.com →
FERC Section 206 show cause order to NYISO and NY transmission owners on large-load integration (EL26-69-000) — (2026-06-18) ferc.gov →
NYISO informational report to FERC on resource adequacy for large loads (EL26-69-000) — (2026-07-20) climatesolutionslaw.com →
Abeyance motions by NYISO, New York Transmission Owners, and non-incumbent TOs in the show cause proceeding (EL26-69-000) — (2026-08-03) federalregister.gov →
NYISO large-load interconnection process reform (stakeholder track, incl. BELL/BOLT concept) (none yet (NYISO stakeholder process; FERC filing planned)) — (2026-02-03) harrisbeachmurtha.com →
NY PSC Order Instituting Proceeding — Interconnection Reforms for Large Loads (Energize NY Development) (Case 26-E-0045) — (2026-02-12) gtlaw-environmentalandenergy.com →
New York Executive Order No. 62 — statewide moratorium on hyperscale data centers 50 MW+ (EO No. 62) — (2026-07-14) governor.ny.gov →
Responsible Data Center Development Act (S.10642 / A.11560) — (2026-06-04) gtlaw.com →
2026 Reliability Needs Assessment — preliminary results (NYISO comprehensive system planning process (ESPWG/TPAS)) — (2026-07-23) climatesolutionslaw.com →
Champlain Hudson Power Express (CHPE) — In service — commercial operation date May 13, 2026 (ahead of schedule); commercial… spglobal.com →
Propel NY Energy — Article VII permitting: application filed July 31, 2024; joint proposal submitted 2026… propelnyenergy.com →
EO 62 DPS transmission/infrastructure workstreams — Working group establishment due ~September 12, 2026; DPS transmission report due… clm.com →
2026-09-12 — EO 62: DPS Data Center Interconnection Working Group to be established; ESD Community Investment Framework issued by mid-September clm.com →
2026-10-12 — EO 62: DPS transmission report due clm.com →
2026-11-15 — End of any FERC-granted abeyance window in EL26-69 — NYISO/NYTOs would need their show-cause response or Section 205 package on file around mid-November 2026 bdlaw.com →
2027 — NYISO target for FPA Section 205 filing of its large-load integration framework (per its July 2026 informational report to FERC) climatesolutionslaw.com →
2027-02-12 — DPS Staff White Paper due in PSC Case 26-E-0045 — comprehensive proposal on large-load interconnection, cost allocation, and tariff structure gtlaw-environmentalandenergy.com →
2027-07-14 — EO 62 one-year moratorium outer boundary — DEC permitting for 50 MW+ data centers can resume only after the DPS Generic Environmental Impact Statement is complete clm.com →
2030 — Propel NY Energy targeted completion (construction mid-2026 through May 2030) propelnyenergy.com →

ISO-NE — ISO New England Inc.

8 rulings & filings · 4 transmission items · 6 dated milestones

Queue: 0.285 GW — two proposed large-load projects in the formal study phase could reach 285 MW combined maximum demand; forecast peak contribution ~110 MW (summer/winter) in the 2030s rising to ~130 MW in… · Effectively the entire large-load forecast; ~800 GWh/yr consumption 2030-2035 rising to ~1,000 GWh/yr in the 2040s; no system demand impact expected before… (as of 2026-05-01) isonewswire.com →
FERC show cause order on large load and co-located load integration (195 FERC ¶ 61,215) (EL26-72-000) — (2026-06-18) iso-ne.com →
ISO-NE Informational Report on resource adequacy for large loads (EL26-72-000) — (2026-07-20) iso-ne.com →
Joint ISO-NE/PTO abeyance motion and FERC grant in the show cause proceeding (EL26-72-000) — (2026-08-03) isonewswire.com →
Bring-your-own-new-generation (BYONG) requirement for new large loads (EL26-72-000 (notice expected in Nov 16, 2026 Section 205 filing)) — (2026-07-20) iso-ne.com →
Exclusion of new large loads from the Installed Capacity Requirement (ICR) (EL26-72-000 (notice expected in Nov 16, 2026 Section 205 filing)) — (2026-07-20) iso-ne.com →
Capacity Auction Reforms Phase 1 (CAR-PD): prompt auction and faster deactivation (ER26-925-000) — (2025-12-31) isonewswire.com →
Capacity Auction Reforms Phase 2 (CAR-SA): seasonal auctions and accreditation (not yet filed) — (2026) iso-ne.com →
Pay for Performance rate reduction filing (ER26-3047-000) — (2026-07) iso-ne.com →
2050 Transmission Study (first Longer-Term Transmission Study) — completed — final study published February 2024 isonewswire.com →
Longer-Term Transmission Planning (LTTP) 2025 RFP — preliminary preferred solution (CMP/Avangrid + Eversource) — preliminary preferred solution selected July 28, 2026; draft report public comments ran… isonewswire.com →
Show-cause-driven large-load transmission service reforms — to be addressed in ISO-NE/PTO Section 205 filing due Nov 16, 2026 iso-ne.com →
Surplus Interconnection Service reforms — stakeholder design underway in 2026 iso-ne.com →
2026-11-16 — ISO-NE/PTO Federal Power Act Section 205 filing of large-load and co-located-load tariff changes in response to show cause order EL26-72 (all five reform categories), following the NEPOOL… isonewswire.com →
2027 — Detailed implementing rules for the BYONG requirement and the exclusion of new large loads from the Installed Capacity Requirement to be filed with FERC after a full stakeholder process — the… iso-ne.com →
2027 — First point at which ISO-NE's forecast shows proposed large loads (two projects, up to 285 MW) affecting regional system demand isonewswire.com →
2028 — ISO-NE filing of updated net CONE and capacity market demand curve parameters ahead of the 2030-31 capacity commitment period iso-ne.com →
2028-05 — First prompt (and, if CAR-SA is approved, seasonal) capacity auction, administered one to two months before the capacity commitment period beginning June 1, 2028 — replaces the three-year-forward FCA iso-ne.com →
2032 — Potential in-service date for the preferred northern Maine-southern New England transmission project mainepublic.org →

FERC — Federal Energy Regulatory Commission

11 rulings & filings · 3 transmission items · 6 dated milestones

Queue: No single national large-load queue figure; per the July 20, 2026 reports: SPP's ERAS process holds 36 active requests (~13.3 GW); CAISO projects data-center load on its grid growing 1.8 GW by 2030… · Not uniformly quantified across the six reports; MISO has been reported as the fastest-growing data-center region, with data-center capacity growing at a 43%… (as of 2026-07-20) climatesolutionslaw.com →
Six FPA Section 206 show-cause orders on large-load integration — EL26-67 (PJM), EL26-68 (SPP), EL26-69 (NYISO), EL26-70 (MISO),… (EL26-67-000 through EL26-72-000) — (2026-06-18) daypitney.com →
Generation-adequacy informational reports filed by all six RTOs/ISOs (EL26-67-000 through EL26-72-000) — (2026-07-20) climatesolutionslaw.com →
Show-cause responses due from six RTOs/ISOs and transmission owners (EL26-67-000 through EL26-72-000) — (2026-08-17) mgrid.org →
Large-load interconnection rulemaking docket (DOE-directed ANOPR) — no NOPR issued; docket held open (RM26-4-000) — (2025-10-23) mcguirewoods.com →
PJM co-located load Section 206 proceeding instituted from technical-conference record (EL25-49-000 (record from AD24-11-000 technical conference, Large…) — (2025-02-20) akingump.com →
FERC order on PJM co-located load — tariff found unjust and unreasonable; new co-location framework ordered (EL25-49-000 et al.; 193 FERC ¶ 61,217) — (2025-12-18) mayerbrown.com →
FERC order partially accepting/rejecting PJM co-location compliance filing (ER26-1088 (compliance to EL25-49)) — (2026-04-16) natlawreview.com →
FERC order on rehearing and compliance in PJM co-location proceeding — new transmission-service terms accepted in part (EL25-49-002, et al.) — (2026-06-18) willkie.com →
Rejection of amended Talen/Susquehanna interconnection service agreement (Amazon co-located data center) (ER24-2172-000) — (2024-11-01) utilitydive.com →
SPP large-load service frameworks accepted — HILL/CHILLS effective; PALS filing planned (SPP tariff filings (HILL approved January 2026; CHILLS effective…) — (2026-07-01) blog.hdata.com →
PJM Expedited Interconnection Track (EIT) accepted (PJM Section 205 filing (accepted June 9, 2026)) — (2026-06-09) climatesolutionslaw.com →
Order No. 1920 / 1920-A long-term regional transmission planning compliance — compliance filings in progress through 2026; appellate challenge pending utilitydive.com →
New PJM co-located-load transmission service classes — framework accepted in part; further compliance pending mayerbrown.com →
Susquehanna front-of-the-meter transmission reconfiguration (Talen/AWS) — expected completion spring 2026 (per June 2025 announcement) ir.talenenergy.com →
2026-09-16 — Comment window closes for interested parties on the six RTO/ISO show-cause responses in Dockets EL26-67 through EL26-72 — data-center developers' primary opportunity to shape large-load… whitecase.com →
2026-09-30 — MISO Large Load Parallel Study Process Section 205 filing at FERC climatesolutionslaw.com →
2026-11-16 — SPP Price Adaptive Load Service (PALS) Section 205 filing target climatesolutionslaw.com →
2026-11-16 — CAISO Large Loads Stakeholder Initiative compliance filing target (follows its August 12, 2026 straw proposal with two flexible interconnection services and a 50 MW large-load definition) climatesolutionslaw.com →
2027 — NYISO Section 205 filing target for large-load planning reforms, including accelerated interconnection for reliability resources and potential large-load responsibility assignments climatesolutionslaw.com →
No date set — FERC decisions on the six show-cause responses (EL26-67 through EL26-72) and on PJM's May 18, 2026 further co-location compliance filing (ER26-1088-001) — FERC has announced no decision deadline for… bracewell.com →

NERC — North American Electric Reliability Corporation (NERC)

16 rulings & filings · 2 transmission items · 6 dated milestones

Queue: NERC does not operate an interconnection queue. Forecasts submitted by registered entities responding to the September 2025 Level 2 Alert indicate large-load demand could increase by as much as 300… · Data centers (traditional, AI, and crypto mining) make up the overwhelming share of the forecast growth, per the aggregated Level 2 Alert report (as of 2026-03-17) nerc.com →
Incident Review: Considering Simultaneous Voltage-Sensitive Load Reductions (July 10, 2024 Virginia event) — (2025-01-08) nerc.com →
LLTF White Paper 1: Characteristics and Risks of Emerging Large Loads — (2025) nerc.com →
Level 2 Alert — Industry Recommendation: Large Load Interconnection, Study, Commissioning, and Operations — (2025-09-09) certrec.com →
NERC comments in FERC large-load interconnection ANOPR docket (RM26-4-000) — (2025-11-21) nerc.com →
2025 Long-Term Reliability Assessment — (2026-01-29) nerc.com →
Aggregated Report on Level 2 Alert responses — (2026) nerc.com →
LLWG White Paper 2: Assessment of Gaps in Existing Practices, Requirements, and Reliability Standards for Emerging Large Loads — (2026-03-11) nerc.com →
Project 2026-02 Computational Loads — SAR accepted, drafting team appointed (NERC Project 2026-02) — (2026-03-18) nerc.com →
NERC Accelerated Large Load Action Plan (supplemental letter to FERC) (RM26-4-000) — (2026-03-20) nerc.com →
Rules of Procedure revisions — registration of Computational Load Entities (Appendices 2, 5A, 5B) (NERC Rules of Procedure, Appendix 5B Statement of Compliance…) — (2026-04-01) nerc.com →
Level 3 Alert — Essential Actions on computational loads — (2026-05-04) utilitydive.com →
Reliability Guideline: Risk Mitigation for Emerging Large Loads — (2026) nerc.com →
2026 Summer Reliability Assessment — (2026-05-19) nerc.com →
2026 State of Reliability report — computational load events section — (2026-06-24) rtoinsider.com →
FERC order directing NERC computational-load standards and registration (RD26-7-000) — (2026-07-16) troutmanenergyreport.com →
Draft Reliability Standards CLO-001-1, CLO-002-1, CLO-003-1 posted for comment and ballot (NERC Project 2026-02) — (2026-08-19) nerc.com →
Not applicable — NERC does not plan or build transmission — context utilitydive.com →
System capacity context from 2026 Summer Reliability Assessment — published May 19, 2026 nerc.com →
2026-09-03 — Deadline (8:00 p.m. Eastern) to join the Project 2026-02 ballot pool to vote on draft standards CLO-001-1, CLO-002-1, and CLO-003-1 nerc.com →
2026-09-15 — NERC Large Loads Working Group (LLWG) meeting; the Load Modeling Working Group hosts a Data Center Modeling workshop September 15-16 nerc.com →
2026-09-18 — Comments due (8:00 p.m. Eastern) on draft standards CLO-001-1/002-1/003-1 (ballot runs the final 10 days of the period), and close of the second 30-day comment period on revised Rules of Procedure… nerc.com →
2026-11-17 — NERC Load Modeling Working Group meeting (ongoing work on the computational-load modeling reference document and the data-center model quality tool) nerc.com →
2026-12-31 — FERC-ordered deadline (Docket RD26-7-000, order issued July 16, 2026) for NERC to file new or modified Reliability Standards, Glossary changes, registry criteria, and Rules of Procedure revisions… powermag.com →
2027-03-01 — NERC informational filing due at FERC detailing its workplan for additional computational-load Reliability Standards (Phase II of the RD26-7 directive) troutmanenergyreport.com →