Welcome to the Nogales Interconnection Project Website

Please click on Document Library to access the final Environmental Assessment.


On November 8, 2017, the Applicant requested that DOE temporarily pause its review of the Presidential permit application for the proposed Nogales Interconnection Project. This request, as well as DOE's response, may be viewed on the Document Library.

The U.S. Department of Energy (DOE) invites you to participate in the National Environmental Policy Act (NEPA) Environmental Assessment (EA) process for the proposed Nogales Interconnection Project (the Project). On April 8, 2016, Nogales Transmission, L.L.C. (Nogales Transmission or the Applicant), a subsidiary of Hunt Power, L.P., applied to DOE’s Office of Electricity Delivery and Energy Reliability for a Presidential permit to construct, operate, maintain, and connect a new transmission line across the U.S.-Mexico international border in southern Arizona.  A copy of DOE’s Notice of Application for Presidential permit; Nogales Interconnection Project is located on the Document Library page. 

Executive Order (E.O.) 10485, as amended by E.O. 12038, establishes that anyone seeking to construct, operate, maintain, or connect an electric transmission facility crossing the borders of the United States must first obtain a Presidential permit issued by DOE. DOE did not initiate, nor is it funding, the proposed transmission facilities. DOE’s role is limited to deciding whether or not to issue a Presidential permit.  An integral part of the Presidential permit application process is DOE’s determination regarding whether or not the proposed Project is in the public interest.  In addition, Nogales Transmission will be required to obtain the approval of the State of Arizona in order to build its proposed facilities.  For more information regarding DOE’s process of evaluating a Presidential permit application, please see the Process page. 

This website serves to provide information and announcements to the public regarding the Nogales Interconnection Project (the Project).  Public documents related to the Project are available on the Documents page.  Public comments on the Project can be made by using the Comment Form.  For more information regarding how to submit a public comment, please see the Public Involvement page. 

DOE invites you to get involved and subscribe to the mailing list in order to receive Project updates and announcements.


Other Resources

U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability, Pending Applications website; see PP-420

U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability, Presidential permit website

U.S. Department of Energy Homepage

U.S. Department of Energy Office of NEPA Policy and Compliance

Applicant’s Project website


Banner Image: South-facing view of the Mariposa Port of Entry and the Coronado National Forest. Image courtesy of Tucson Electric Power.