Southline Transmission Project is a 345kV overhead line with a length of 386km from Afton Substation, New Mexico, US, to Apache Substation, Arizona, US.

The project, which is currently in the planning stage, is expected to be commissioned in 2021.


Southline Transmission Project is an overhead line that will be operated by Hunt Power. The line will carry alternating current (AC) through double circuit cable.

Approximately $800m was financed by the authorities to undertake the construction works of the project.

Southline Transmission Project project development status

How well do you really know your competitors?

Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.

Company Profile – free sample

Thank you!

Your download email will arrive shortly

Not ready to buy yet? Download a free sample

We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below form

By GlobalData
Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.

The construction works on the Southline Transmission Project project commissioning is expected in 2021.

About Hunt Power

Hunt Power LP (Hunt Power) is a power company that develops transmission and distribution projects. The company offers project development, infrastructure financing and transmission development services. It develops and acquires electric transmission and distribution assets. Hunt Power’s projects include Nogales Interconnection Project, Southline Transmission Project and Verde Transmission Project, among others. The company also develops renewable projects and invests in other power-related opportunities. It has operations throughout Texas, the US. Hunt Power is headquartered in Dallas, Texas, the US.


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.