North Plains Connector Project

Environmental Impact Statements; Notice of Availability

This is a Notice of Availability published by EPA's Office of Federal Activities listing EISs filed between December 26, 2025 and January 5, 2026. One of the listed documents is a Draft EIS for the North Plains Connector Project, led by the Department of Energy in Montana. The comment period closes February 23, 2026. No alternatives count, impact analysis, or mitigation commitments appear in this brief listing notice; those details are in the underlying Draft EIS.

Amended Notice of Intent To Prepare an Environmental Impact Statement for the Proposed North Plains Connector Project, Colstrip, MT to Center/St. Anthony, ND

The Grid Deployment Office (GDO) of the Department of Energy issued this Amended Notice of Intent (ANOI) to clarify that DOE has a decision-making role in the North Plains Connector Project, a high-voltage transmission line running from Colstrip, Montana to Center/St. Anthony, North Dakota. DOE is considering whether to finalize a conditional GRIP Program award of approximately $605 million to the Montana Department of Commerce for the project. The ANOI also adds detail on planned upgrades to the Colstrip Substation, including two new 500 kV bays and expansion of the substation footprint by roughly 13 acres. The EIS scope and scoping period are unchanged from the original October 2024 NOI.

Notice of Intent To Prepare an Environmental Impact Statement for the Proposed North Plains Connector Project, Colstrip, Montana to Center/St. Anthony, North Dakota