ISO-NE proposes new transmission-service requirements for data centers and other large users
ISO New England says its proposed large-load framework would require new capacity for firm service and offer flexible alternatives for data centers and other major electricity users.
Reported · Source verified Nov 13, 2026 · 8:10 pm EST
ISO New England says it has jointly filed a proposal with federal regulators to change how large electricity users, including data centers, obtain transmission service in New England.
In a November 13 announcement, the grid operator said the proposed application and study process would begin June 1, 2027. Customers seeking firm service would need new capacity and transmission upgrades to support their load. Flexible users could instead seek non-firm service, accepting requirements to reduce consumption or increase eligible generation.
The proposal aims to protect regional grid reliability and avoid shifting costs to other consumers, according to ISO-NE. It is a regulatory proposal. The announcement does not give a date for a FERC decision.
What happens next
FERC consideration of the proposal; the announcement does not specify decision timing.
Source for this milestone →Sources & reporting
- ISO New England / large-load transmission proposal · 2026-11-13
Sources checked 2026-11-14.