Ridgeline Expansion Project

Enbridge is proud to be working with the Tennessee Valley Authority (TVA) on a project that will provide affordable and cleaner energy for the utility’s customers.

We are proposing to design, construct and operate the Ridgeline Expansion Project (Ridgeline), an expansion of Enbridge’s existing East Tennessee Natural Gas (ETNG) system.

The purpose of this is to provide natural gas to serve TVA’s natural gas replacement of the Kingston Fossil Plant.

The scope includes the installation of approximately 122 miles of 30-inch pipeline looping the existing pipeline and one electric-powered compressor station. There will also be 80 acres of solar installed to offset the electrical usage of operations.

The majority (91%) of the route for the proposed pipeline would be located within the existing system's right-of-way where possible to minimize impacts to landowners and the environment.

Ridgeline has received all necessary regulatory certificates and permits. There have been many opportunities for public review and input during this multi-year regulatory review process. We continue to engage with local stakeholder to discuss and work with landowners.

Will the receipt of all permits and certificates, construction will begin Oct. 20, 2025 with a targeted in-service date of November 2026 and complete restoration in the spring of 2027.

Project overview:

• Type: Natural gas pipeline
• Status: Received FERC Notice to Proceed
• Expected to transport: Natural gas
• In-service target date: November 2026
• Ownership: Enbridge Inc. (100%)