Independence Substation is a 500kV substation located in Independence, Warren County, Arkansas, US.

The Independence Substation project’s construction began in 2019. Work is expected to be commissioned in 2021.


Independance Substation project, which is a new substation, will be operated by Entergy Arkansas.

The designed voltage level of the substation is 500/161kV and the operating voltage level is 500/161kV.

The step-in voltage of the project is 500kV and the step-out voltage is 161kV. Upon completion, the substation will have a capacity of 800MVA.

Independence Substation project development status

The development of the Independence Substation project was approved by Arkansas Public Service Commission in 2019. The project is expected to be commissioned in 2021. Approximately $21.12m was financed by the authorities to undertake the construction works of the project.

About Entergy Arkansas

Entergy Arkansas Inc (Entergy Arkansas), a subsidiary of Entergy Corporation is an electric utility that generates, transmits and distributes electrical power. The utility’s services include site selection and project management services, research and engineering services, large project services and contract services. It also offers customer services, bill payment options, energy audits, customized commercial and industrial programs, electrical safety, builder services and energy conservation services, among others. Entergy Arkansas distributes electricity to residential and commercial customers. The utility serves the eastern and central Arkansas counties.


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.