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Texas Transmission Improvement and Expansion

As of 8/24/18. Subject to change. Maps are for illustrative purposes only.

Western Region Economic Project

Description: This project in Entergy Texas is composed of two projects that work together to reduce congestion in the Entergy Texas transmission system.  

The two projects are (1) Construct a new 230kV transmission line from Rocky Creek to the Lewis Creek generating station.  (2) Upgrade the existing 25 mile 138 kV line from Newton Bulk to Leach.

Estimated Projects Costs:

(1)    Rocky Creek to the Lewis Creek 230 kV Construction Cost: $122 million
(2)    Newton Bulk Leach 138 kV Upgrade Construction Cost: $23 million

Status: The upgrade portion of the project is expected to be placed in service by the summer of 2019 followed by the completion of the new 230 kV transmission line by the summer of 2020.
 
Benefits: The purpose of this project is to upgrade the electric transmission system to more effectively move lower-cost power into and within the southeast Texas area for all customers served from Entergy Texas' transmission system.

 

Port Arthur Reliability Improvement Project

Description:  Entergy Texas is constructing (2) new 230 kV substations and instaling a new 230 kV transmission line between the new substations in the Port Arthur area.  The proposed Garden 230 kV substation will be near Central Gardens, Texas and the proposed Legend 230 kV substation will be near Port Acres, Texas.

Cost: Approximately $71 million.

Status: The project is currently ongoing with an expected in-service date of June 2020.

 
Benefits: This project addresses future load growth and reliability needs in east Texas.

China to Stowell: Construct New 230 kV Line

Description: This project, located in east Texas, involves the construction of a new 230 kV transmission line between Entergy Texas China and Stowell substations. This includes the addition of a 230-138 kV autotransformer at Stowell.

Cost: Approximately $65 million.

Status: The project is currently ongoing with an expected in-service date of June 2019.

 
Benefits: This project addresses future load growth and reliability needs in east Texas.

Bryan 138-69 kV:  Replace Autos and Reconfigure the 138 kV and 69 kV Bus

Description:  This project located at Entergy's existing Bryan substation, replaces two 138-69 kV autotransformers with larger units and reconfigures the 138 kV and 69 kV operating buses to a ring bus configuration.

Cost:  Approximately $27 million.

Status:  Design Phase.  This project is expected to be in service by the summer of 2019.

Benefits: This project addresses future load growth and reliability needs in Entergy Texas' western area.


Hull to Sour Lake 69 kV:  Rebuild Line

Description:  This project rebuilds approximately 25 miles of the existing Hull to Sour Lake 69 kV line.

Cost:  Approximately $39 million.

Status:  Design Phase.  This project is expected to be in service by the winter of 2020.

Benefits: This project addresses future load growth and reliability needs in east Texas.


Heights 230 kV:  Construct New Substation

Description:  This project constructs a new distribution substation that cuts into the existing China to Porter 230 kV line.  The new substation will be located east of The Woodlands near the Grand Parkway.

Cost:  Approximately $38 million.

Status:  Design Phase.  This project is expected to be in service by the summer of 2019.

Benefits: This project addresses future load growth east of The Woodlands, TX near the Grand Parkway.