Entergy Texas seeks approval for 230-kV line to connect proposed Heights substation

Entergy’s (NYSE:ETR) Entergy Texas, in a Sept. 29 application filed with the Public Utility Commission (PUC) of Texas, said that it proposes to design and build a new 230-kV overhead electric transmission line to connect the proposed Heights substation to the company’s existing 230-kV line (Line #822) in Montgomery County, Texas.

The proposed route for the new line would be about 1.4 miles long, the company said, adding that the proposed Heights substation, in its ultimate configuration will be a distribution substation with a 230-kV high voltage bus arrangement, two step-down power transformers, and medium voltage bus arrangement.

The proposed project is located northeast of the Porter Heights Community, located off Farm to Market Road (FM) 1314 in the southeastern portion of Montgomery County. The company also said that the project is located within the Pineywoods Vegetational Area, which lies entirely within the Gulf Coastal Plains Physiographic Province.

The company noted that its existing 230-kV transmission line between its existing Porter 230-kV substation and its existing China 230-kV substation will be routed into the proposed Heights 230-kV substation.

According to the estimated schedule, right of way (ROW) and land acquisition is to begin in 3Q16 and be completed in 1Q17; engineering and design is to begin in 2Q17 and be completed in 4Q17; material and equipment procurement is to begin in 3Q17, and be completed in 3Q18; construction of facilities is to begin in 3Q18 and be completed in 4Q18; and the facilities are to be energized in 4Q18.

The estimated total cost of the transmission facilities is about $5.3m, and about $14.5m for the substation facilities, the company said.

Discussing the need for the proposed project, the company said that the Heights substation project is a planned new distribution point of delivery that will provide additional load-serving transformer capacity that is necessary to eliminate an expected 2019 New Caney transformer #3 overload condition. Load growth within Entergy Texas’ New Caney network in southeast Montgomery County is expected to continue over the next 10 to 20 years, the company said.

Among other things, the company said that the National Park Service, U.S. Fish & Wildlife Service and U.S. Forest Service indicate that no national parks, forests, grasslands or wildlife refuges exist within the boundaries of the study area.

About Corina Rivera-Linares 3059 Articles
Corina Rivera-Linares, chief editor for TransmissionHub, has covered the U.S. power industry for the past 15 years. Before joining TransmissionHub, Corina covered renewable energy and environmental issues, as well as transmission, generation, regulation, legislation and ISO/RTO matters at SNL Financial. She has also covered such topics as health, politics, and education for weekly newspapers and national magazines. She can be reached at clinares@endeavorb2b.com.