FERC has approved Transcontinental Gas Pipe Line’s (Transco) proposed 225,000 Dth/d expansion of its system to serve growing natural gas markets in the Southeast region, the Williams Partners LP subsidiary said Wednesday.

Transco’s Mid-South Expansion project, which is designed to provide service to the City of LaGrange, GA, Progress Energy Carolinas and Southern Company Services, will consist of about 23 miles of new pipeline, a new compressor facility in Dallas County, AL, and upgrades to existing compressor facilities in Alabama, Georgia, South Carolina and North Carolina.

The project will be constructed in two phases: 95,000 Dth/d is scheduled to be placed into service in the fall of 2012 and another 130,000 Dth/d is expected to be placed into service the following summer. Transco has estimated the capital cost of the project at $217 million.

Last year Transco said it had entered into binding precedent agreements for 100% of the incremental firm transportation service to be provided by the project (see Daily GPI, May 27, 2010).

Transco recently received Federal Energy Regulatory Commission approval for a proposed 142,000 Dth/d expansion of its system to cater to growing markets in the Mid-Atlantic region by November 2012 (see Daily GPI, July 6). When completed, the $55 million Mid-Atlantic Connector expansion project will provide Virginia Power Services Energy Corp. Inc. and Baltimore Gas and Electric Co. with incremental firm transportation capacity from a Transco interconnection with East Tennessee Natural Gas pipeline in Rockingham County, NC, to delivery points as far north as Maryland.

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