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New Caledonia Gas Plant

Lowndes County, Mississippi

The Tennessee Valley Authority (TVA) is proposing the construction of six dual-fuel frame combustion turbines (CTs) capable of generating approximately 500 MW at the existing New Caledonia (NCG) Site. The proposal would provide dispatchable generation capacity to support continued load growth within the Tennessee Valley. The CTs are needed to provide dispatchable generation capacity to ensure that TVA can reliably meet required year-round generation, maximum capacity system demands, and planning reserve margin targets while facilitating the integration of renewable energy onto the electric grid. 

The NCG Site is a 63-acre CT facility, originally constructed in 1998 and operated for several years by a private company.  The company dismantled the site in 2007, removing the existing six frame CTs.  The adjacent TVA Lowndes County 161 kV and 500-kV Substation is approximately 82 acres and has remained in-service. The proposed NCG would use an existing gas line currently located at the site.  A new interconnection and ancillary infrastructure (e.g., taps, meter station, pressure regulation equipment, etc.) would be required; however, construction of a new gas pipeline is not anticipated. 

Public Involvement

TVA issued a Notice of Intent pursuant to the National Environmental Policy Act (NEPA) to consider the potential impacts on the environment associated with the proposal, scope of the review, and alternatives being considered. TVA will consider all comments received in the draft document. TVA will prepare an Environmental Assessment (EA) or an Environmental Impact Statement (EIS) tentatively scheduled for release in Summer 2024.

Scoping comments were received from November 28, 2023 to January 19, 2024. An in-person Public Open House Meeting was held on Monday, January 8, 2023, at the Caledonia Community located at 205 South St, Caledonia, MS 39740.

Related Documents

New Caledonia Notice of Intent


More information on this environmental review can be obtained from:

Erica McLamb
NEPA Project Manager
[email protected]
1101 Market St.
Chattanooga, TN 37402