Access documents related to the Large Loads Integration Key Project.
On June 18, 2026, the Federal Energy Regulatory Commission (FERC) issued a show cause order instituting a proceeding under Section 206 of the Federal Power Act (EL26-72-000) related to the integration of large loads and co-located load arrangements.
On August 14, 2026, FERC issued an order granting a 90-day abeyance. The ISO will conduct a stakeholder process ahead of a Nov. 16, 2026, Tariff filing under Section 205 to address the five categories of reform identified in FERC’s order.
Additionally, the show cause order required submission of an informational report on resource adequacy. In the ISO’s July 20, 2026, report filed with FERC, the ISO provided notice that it is developing resource adequacy-related provisions to address large load interconnections and adverse reliability risks. While data centers and other large loads have not yet materialized in New England at scale, they could create circumstances requiring specific approaches and procedures to facilitate their interconnections and ensure system reliability.
The Large Loads Integration Key Project is one of several key projects at the ISO, which continuously undertakes a variety of short- and long-term projects to enhance the region’s competitive wholesale electricity markets and ensure reliable operation of the power grid.
