Texas PUC approves Entergy’s 500-kV SETEX transmission project

Robert Walton | Source: Utility DIVE | Posted 10/06/2025

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The Public Utility Commission also selected six projects to receive $381 million from the Texas Energy Fund’s Outside ERCOT Grant Program.

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The Public Utility Commission of Texas (PUCT) has approved Entergy's Southeast Texas Area Reliability Project (SETEX), which includes a 145-mile, 500-kV transmission line aimed at enhancing reliability in the Midcontinent Independent System Operator (MISO) region. This project is part of a broader initiative to support economic growth in Southeast Texas and will involve the construction of two new substations. The approved route for the transmission line will pass through several counties and cross Lake Livingston, a point of contention during discussions.

Additionally, the PUCT has allocated approximately $381 million in grants from the Texas Energy Fund's Outside ERCOT Grant Program, with Entergy potentially receiving around $200 million. This funding will be used to upgrade and replace infrastructure to improve the resilience and reliability of the electrical system, particularly in the face of extreme weather events. The recent approvals mark a significant investment in Entergy's infrastructure, totaling about $4 billion in the past month, as the utility aims to better serve its 524,000 customers.

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Texas PUC approves Entergy’s 500-kV SETEX transmission project

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