Queue Intelligence · Playbook (Beta)
How we run ISO-NE large-load interconnection across six New England states — the Forward Capacity Market, NEPOOL stakeholder process, winter fuel security, and the state commissions that each hold meaningful authority.
The New England context
ISO-NE is different. The Forward Capacity Market is a real revenue stream. NEPOOL is a real decision venue. Winter reliability is an operational constraint that the system plans around. And six state commissions each have meaningful authority that crosses your project's path. Our playbook reflects this mosaic.
ISO-NE 2025 interconnection report
ISO-NE corporate
ISO-NE FCM Manual
ISO-NE Operational Fuel Security Analysis
Active deadlines we're tracking
How we run an ISO-NE filing
ISO-NE's Forward Capacity Market obligations make large new loads part of the capacity commitment math. Your project's impact on the capacity market is a meaningful negotiation surface — commitment timing, capacity obligations, and cost allocation all interact.
Capacity clears annually in the Forward Capacity Auction with three-year lead time.
ISO-NE spans Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. Each state has its own PUC, its own rate structure, and its own incentive framework. Your project crosses several of these surfaces depending on where the POI sits.
Massachusetts, Connecticut, and Maine are the most common large-load jurisdictions.
ISO-NE is the only US ISO with a formal Operational Fuel Security Analysis. Winter peak is gas-constrained, and the reliability risk shows up as capacity pricing and tariff terms. Projects with flexible load or on-site generation get better treatment.
Every ISO-NE project pro forma should model winter reliability assumptions.
NEPOOL is the stakeholder process that feeds ISO-NE decisions. Most tariff changes pass through NEPOOL committees before FERC filings. We track NEPOOL Participants Committee agendas and flag items that touch large-load economics.
NEPOOL engagement is the soft infrastructure around hard filings.
What matters
ISO-NE's Forward Capacity Market is the most developed capacity market in the US. Large loads can earn capacity revenue through demand response, on-site generation, and other flexibility commitments. Every ISO-NE project should evaluate FCM revenue as part of the pro forma.
ISO-NE's winter peak is gas-constrained in a way that affects tariffs, capacity pricing, and reliability risk. The Operational Fuel Security Analysis is a formal framework that touches every project.
The Massachusetts DPU, Connecticut PURA, and Maine PUC each have meaningful rate and tariff authority that interacts with ISO-NE tariffs. Large-load projects often engage three or more state commissions simultaneously.
Many ISO-NE decisions are made at the NEPOOL stakeholder level before they become FERC filings. A developer engaging NEPOOL early has a materially better chance of shaping the process than one showing up at the FERC filing stage.
Features
Every 345 kV and 115 kV bus in New England with nightly base case and queue ingestion. We cover Eversource, National Grid, Avangrid, Versant, and Green Mountain Power territories.
Model your project's capacity obligations across Forward Capacity Auction cycles. Surface capacity revenue alongside capacity costs so the net pro forma is clean.
Track every active PUC case in Massachusetts, Connecticut, Maine, New Hampshire, Rhode Island, and Vermont. Your project can touch multiple states; we keep them synchronized.
ISO-NE's Operational Fuel Security Analysis is a formal risk framework. We model your project's implied winter reliability contribution and surface scenarios where the tariff treatment shifts materially.
NEPOOL Participants Committee agendas, voting records, and working group documents all indexed and monitored. You see tariff changes coming before the FERC filing lands.
Massachusetts, Connecticut, and Maine each have distinct siting requirements for large industrial loads. We produce the initial siting brief for the local agencies.
ISO-NE is in beta because the six-state PUC integration and the FCM obligation modeler are still being tuned. The core queue graph and NEPOOL stakeholder tracker are production-ready. Customers piloting ISO-NE today help us harden the beta features.
“Winter fuel security is the single constraint that most differentiates New England operations from any other US power system.”
Other playbooks
ISO-NE playbook
We produce the winter reliability memo, the FCM revenue projection, and the six-state regulatory coordination plan as part of your pilot. Start with a workspace this week.