The $921M Number: What Is Actually Sourced
The $921 million figure is tied to the DASI complaint and related public reporting, while the $140 million reference comes from the original impact-assessment context. The complaint asks FERC to examine whether the resulting rates are just and reasonable; it does not by itself establish a final refund, tariff change, or retail bill outcome.
- Market design: DASI procures day-ahead ancillary services alongside energy, so reserve and energy conditions can interact in settlement.
- Fuel and weather context: ISO-NE has pointed to higher demand, natural gas prices, resource-mix shifts, and cold-weather conditions as factors that differed from earlier modeling.
- Participation and offer behavior: ISO-NE Internal Market Monitor materials identify participation, offer prices, and risk-premium assumptions as important variables to evaluate.
New Hampshire Policy Pressure
New Hampshire officials have pushed for faster DASI review and have authorized study work on broader grid-participation questions. That creates policy uncertainty, but it should be framed carefully:
- DASI reform requests: State officials and consumer advocates are pressing ISO-NE and FERC to review the market design and cost outcomes.
- HB 690 study work: New Hampshire is studying regional-grid alternatives, but a study is not a decision to exit ISO-NE.
- Retail-rate timing: Any customer impact depends on supplier contracts, utility default-service design, pass-through language, and future FERC action.
ISO-NE has said it is evaluating market-rule changes and anticipates a filing with federal regulators in summer 2026. Buyers should treat that as a reform watchpoint, not as guaranteed rate relief.
What This Means for Commercial Buyers
- Contract review: Identify whether ancillary services are fixed, passed through, reconciled, or subject to regulatory-change clauses.
- Default service comparison: New England buyers comparing supplier offers to utility default service should confirm whether the comparison includes DASI and other ancillary-service costs on the same basis.
- Reform timeline: Track the FERC complaint, ISO-NE summer filing path, and any tariff changes before assuming future cost relief.
- NH businesses: Treat the grid-participation study as a policy variable that may affect future market structure, not current supplier availability by itself.
- Flexible load: Facilities with controllable load should evaluate demand response and operational flexibility, but revenue assumptions need program-specific verification.
Source trail: ISO New England DASI materials, ISO-NE April 2026 NPC complaint reference, ISO Newswire, New Hampshire HB 690, and the New Hampshire withdrawal-study approval report linked above.