Transco’s Leidy Southeast gas capacity expansion is ready for full operation

Transcontinental Gas Pipe Line Co. LLC (Transco) told the Federal Energy Regulatory Commission in a Dec. 30 notice that its Leidy Southeast Expansion Project is about ready for full operation.

In December 2014, FERC issued a certificate of public convenience and necessity authorizing Transco to construct and operate the Leidy Southeast Expansion Project (LSE). The order authorized Transco to construct facilities to provide 525,000 dt/day of incremental firm transportation from the existing Grugan Interconnect on Transco’s Leidy Line in Clinton County, Pennsylvania, and the existing MARC I Interconnect in Lycoming County, Pennsylvania, to various delivery points on Transco’s mainline as far south as Transco’s existing Station 85 Pooling Points in Choctaw County, Alabama.

In February of this yeare, the commission granted Transco’s request to begin providing 525,000 dt/day of service (100% of the Transportation Contract Quantity under the project) on an interim basis from Transco’s existing Station 210 Zone 6 Pooling Point in Mercer County, New Jersey, to various delivery points on Transco’s Mainline as far south as Transco’s existing Station 85 Pooling Points, until such time that the full path project facilities were constructed and placed into service. Transco began providing this service on March 1.

In the fourth quarter of 2015, the commission approved Transco’s requests to place certain project facilities into service and to provide various levels of service from the authorized receipt points under the project. Transco began providing 130,000 dt/day of Interim Leidy Service on Dec. 1, 2015, and will begin providing 290,000 dt/day of Interim Leidy Service on Dec. 30, 2015.

Now ready for service is the net addition of 33,400 horsepower and facility and piping modifications at Transco’s existing Compressor Station 517 in Columbia County, Pennsylvania. Placing Compressor Station 517 into service will allow Transco to begin providing 525,000 dt/day of service (100% of the Transportation Contract Quantity under the project) for the full project path (i.e., from the Grugan and MARC I receipt points to various delivery points on Transco’s mainline as far south as Transco’s existing Station 85 Pooling Points in Choctaw County, Alabama).

Transco said it has informed the project shippers that, subject to receipt of the necessary regulatory authorizations, it anticipates having the full certificated project service available beginning Jan. 5, 2016. Therefore, Transco requests that FERC’s Director of the Office of Energy Projects issue written authorization for Transco to place Compressor Station 517 into service.

About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.