Entergy Texas is planning to construct a new single-circuit 500-kV transmission line approximately 40 to 49 miles in length (depending on the route ultimately approved by the Public Utility Commission of Texas) in Hardin and Jefferson counties. The new transmission line will connect the existing Cypress Substation to the new Legend 500 kV Substation.

On May 30, 2025, Entergy Texas filed an application with the Public Utility Commission of Texas to amend its Certificate of Convenience and Necessity. A link to the CNN application on the PUCT’s website is linked below.

The existing Cypress Substation is located approximately five miles northwest of the intersection of United States Highway 69 and Farm-to-Market 421. The new Legend 500 kV Substation will be located approximately 1.5 miles southwest of the intersection of State Highway 73 and SH 82.

Entergy Texas operates within the Midcontinent Independent System Operator, a regional transmission organization that manages the flow of power across its footprint. MISO has identified this project as subject to federal reliability standards. The project will increase operational flexibility, help meet the growing power demands of Southeast Texas, and increase reliability and resiliency during extreme events, such as Winter Storm Uri.

To learn more about the proposed project, visit the links below.

All routes and route segments included in this notice are available for selection and approval by the PUCT. If approved, only one route (consisting of multiple route segments) from the existing Cypress Substation to the new Legend 500 kV Substation will be selected by the PUCT.

If you have questions about the transmission line, you may contact the project team at 409-347-5010 or by email at cypress-legend@entergy.com.