Entergy Louisiana: Lake Charles Transmission Project about 29% complete through Nov. 30, 2016

Entergy’s (NYSE:ETR) Entergy Louisiana, in a Jan. 5 “confidential semi-annual monitoring report for 2016,” filed with the Louisiana Public Service Commission, said that the total Lake Charles Transmission Project was about 29% complete through Nov. 30, 2016, with construction about 8%, which is ahead of the projected status of 3% complete.

The project’s components include: the Nelson to Hartburg 500-kV Transmission Line; the Rhodes Component; the Patton component; the Carlyss and Solac substations; and the Carlyss to Solac 230-kV transmission line.

The company also said that right of way (ROW) acquisition is 94% complete, which is ahead of the projected 74% complete, and it is tracking to be complete ahead of schedule.

The Nelson to Hartburg line component consists of a 500-foot extension of the existing Nelson to Hartburg 500-kV transmission Line (L-520) to cut in and out of the new Rhodes switchyard.

The company said that the Nelson to Rhodes 500-kV cut-in work schedule was modified based on outage and construction constraints, and there are no delays at this time hindering on-time completion by February 2018, which will align with the other project components. Completion of that work by February 2018, will still support a project in-service date of June 2018, the company said. The Hartburg to Rhodes 500-kV cut-in work schedule was modified based on outage and construction constraints, and there are no delays at this time hindering on-time completion by February 2018, the company said.

The Rhodes Component consists of building a new 500-kV three-breaker switchyard at the point of connection to the existing Nelson to Hartburg 500-kV transmission line, the company said, adding that the new Rhodes switchyard will connect to lines from the Nelson, Hartburg, and new Patton substations to the south. Entergy Louisiana said that it will also build a new seven-mile, 500-kV transmission line from the Rhodes to Patton substation.

The Rhodes 500-kV switchyard schedule was modified based on outage and construction constraints, and there are no delays at this time hindering on-time completion by February 2018, the company said. The Hartburg 500-kV substation remote end work, as well as the Nelson 500-kV substation remote end work, are tied to the installation of the Rhodes switchyard, and will track closely with its schedule, the company said.

The Rhodes to Patton 500-kV transmission line schedule was modified based on outage and construction constraints, and there are no delays at this time hindering on-time completion by March 2018, Entergy Louisiana said, noting that the as-filed spring 2017 construction start date assumed that ROW acquisition and necessary permitting activities would be completed by July 2017. ROW acquisition is expected to be completed in March 2017, the company said.

The Patton component of the project consists of building the new 500/230-kV Patton substation, which will be accessible to existing 230-kV, 138-kV, and 69-kV lines in the area. The company also said that it will build a new four-mile, 230-kV transmission line from the Patton substation to the Carlyss substation. The Patton substation schedule was modified based on outage and construction constraints, and there are no delays at this time hindering on-time completion by March 2018, the company said, adding that ROW acquisition for that substation is complete.

The Patton to Carlyss 230-kV transmission line schedule was modified based on outage and construction constraints, and there are no delays at this time hindering on-time completion by March 2018, with ROW acquisition expected to be completed in March 2017, the company said.

The Carlyss and Solac substations component of the project consists of expanding the existing Carlyss 230-kV substation to a breaker-and-a-half arrangement, and other upgrades to accommodate the Patton to Carlyss and Carlyss to Solac 230-kV transmission lines. The company added that the component also consists of upgrades at the existing Solac 230-kV substation that will accommodate the Carlyss to Solac 230-kV transmission line.

Since work on the Carlyss substation was on property that the company owned, no ROW acquisition was required, and that allowed the company to take advantage of early outage opportunities and contractor availability, which resulted in an improved projected completion date of May 2017.

Similarly, work on the Solac substation was on property that the company owned, allowing for an improved projected completion date of March 2017, the company said.

Entergy Louisiana also said that the Carlyss to Solac 230-kV transmission line component of the project consists of installing about 12 miles of 230-kV transmission line from the Carlyss substation to the Solac substation. Among other things, the company said that ROW acquisition was completed ahead of schedule last November, and the company was able to begin some line work that was on Entergy Louisiana ROW and not in jurisdictional wetlands ahead of schedule, resulting in an improved projected in-service date. 

About Corina Rivera-Linares 3058 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.