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  1. Market Data
September 17, 2021

Big Cajun – Coly Line, US

By Carmen

Big Cajun – Coly Line is a 500kV overhead line with a length of 59.54km from Big Cajun, Louisiana, US, to Coly, Louisiana, US.

The project is expected to be commissioned in 2027.


Big Cajun – Coly Line is an overhead line that will be operated by Entergy Louisiana. The line will carry alternating current (AC) through double circuit cable.

Approximately $121.12m was financed by the authorities to undertake the construction works of the project.

Big Cajun – Coly Line project development status

The construction works on the Big Cajun – Coly Line project will be commenced in 2026 and commissioning is expected in 2027.

About Entergy Louisiana

Entergy Louisiana LLC (Entergy Louisiana), a subsidiary of Entergy Corp is an electric utility that distributes electricity and provides related services. The utility provides services such as payments and billings, storm center, save money on your bill, start or stop or move services, electrical and gas safety, tree trimming, security lighting, energy education, damage claims, and net metering of renewable energy resources. Its builder services include customer installation, overhead CT installation, and underground CT installation.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.

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