PJM Expedited Interconnection Track (EIT) — Order 2023 reforms
FERC Order 2023 (issued July 28, 2023) mandates serial-to-cluster interconnection-study reform at all FERC-jurisdictional RTOs (PJM, MISO, SPP, ISO-NE, NYISO, CAISO; ERCOT exempt as non-FERC-jurisdictional). Backdrop: PJM's queue holds >300 GW of pending generation (mid-2025); ~80% of legacy serial-queue projects withdrew before commercial operation. Cluster mechanics: 60-day scoping window, ERIS vs NRIS service types, DFAX-based cost allocation, Affected Systems Studies for cross-RTO impacts. PJM's Expedited Interconnection Track (EIT, 2024): fast lane for shovel-ready projects targeting 12-18 month studies vs 24-36 month standard cluster. Three gates — Feasibility → SIS → Facilities Study + ISA — with escalating milestone deposits forfeitable on withdrawal. Material modification (MW/technology/POI) kicks project out of EIT. Hyperscale relevance: load interconnection follows PJM Manual M-14H (separate from Order 2023), but most hyperscale projects accompany themselves with co-located/contracted generation that faces the cluster process — generation queue is now the gating factor for most PJM hyperscale energization timelines.
Step 1 - 300+ GW PJM queue backlog + FERC Order 2023 backdrop
Reference notes
PJM's interconnection-queue backlog (300+ GW in mid-2025) and FERC Order 2023 (July 2023, mandating cluster studies at all FERC-jurisdictional RTOs) together reshape generator interconnection across PJM, MISO, SPP, ISO-NE, NYISO, and CAISO. PJM's Expedited Interconnection Track (EIT) introduced in 2024 is the fast lane for shovel-ready projects. Although Order 2023 covers generation (not load), large hyperscale loads depend on the generation queue, so mastery is required even for compliance managers focused on load interconnection. Use Next → to walk through the backlog context, cluster mechanics, EIT specifics, withdrawal rules, and hyperscale implications.
Why queue reform was needed
- Backlog: >300 GW in PJM queue (mid-2025) — ~5× normal annual processing
- Cycle slip: historical 18-month cycle → 4-5 years by late 2010s
- Root cause: serial First-Come-First-Served queue with restudy cascades on every upstream withdrawal
- Withdrawal rate: ~80 % of legacy queued projects withdrew before commercial operation
- Regulatory response: FERC Order 2023 issued July 28, 2023 — serial → cluster mandate at all FERC-jurisdictional RTOs
- ERCOT exempt (not FERC-jurisdictional — Texas Interconnection isolated)
Cluster-study mechanics (Order 2023)
- Cluster scoping window: 60-day open window for new applications
- Cluster modeling: single base case with all projects, studied together
- Cost allocation: Distribution Factor Analysis (DFAX) by contribution to constraint
- ERIS (Energy Resource Interconnection Service) — lower cost, no capacity-deliverability
- NRIS (Network Resource Interconnection Service) — full capacity-deliverability rights
- Affected Systems Studies — coordinated with neighboring RTOs (PJM-MISO seam etc.)
PJM Expedited Interconnection Track (EIT)
- Target cycle: 12-18 months (vs standard cluster 24-36 mo)
- Eligibility: site control + executed PPA/Tolling Agreement + size threshold + readiness deposit
- Gate 1 — Feasibility: high-level evaluation, can interconnect without major upgrades?
- Gate 2 — System Impact Study (SIS): detailed powerflow, dynamic stability, short-circuit, contingency
- Gate 3 — Facilities Study + ISA: final engineering, costs, executed Interconnection Service Agreement
- Material modification (MW / technology / POI change) kicks project out of EIT into standard cluster track
Withdrawal penalties + behavioral levers
- Milestone deposits: escalating — scoping → SIS → Facilities → ISA execution
- Scale: hundreds of $K at scoping → multi-$M at Facilities-Study gate (large projects)
- Forfeiture: withdrawal at any gate forfeits all prior deposits
- Use of forfeited $: fund restudy costs + compensation to other cluster participants
- Site control + readiness milestones: demonstrated at each gate; lapses can trigger withdrawal
- Material modification: MW / technology / POI change → restudy
Hyperscale implications
- Generation accompaniment: co-located gas, dedicated solar+BESS, nuclear PPAs (Talen-Susquehanna model)
- Queue strategy: early + multi-cluster filing for optionality
- Partner selection: established IPPs > speculative developers (financial bar now real)
- Cross-team coordination: data-center construction + generation interconnection + PPA execution on a 36-48 month critical path
- Load process separately: PJM Manual M-14H governs load interconnection (covered in Large Load Interconnection Studies lesson)
- Competitive advantage for well-capitalized partners (AWS-backed) over thinly-capitalized developers
Why it matters for the AWS Grid Code Compliance Manager role
FERC Order 2023 and the PJM EIT control the generation queue that gates almost every PJM hyperscale energization. Even if your direct work is load-side, the generation timeline drives load energization. Mastery of cluster mechanics, EIT eligibility, deposit forfeiture, and material-modification triggers is foundational. Mistakes here directly delay data centers by 1-3 years.