Transcontinental Gas Pipe Line Co. LLC (Transco) has asked FERC staff for permission to begin the prefiling review process for its proposed Northeast Supply Enhancement Project, which would expand the Transco system to serve additional needs of National Grid beginning with the 2019-2020 heating season.

Transco, a Williams pipeline, plans to place the project in service Sept. 15, 2019. It would be designed to provide 400,000 Dth/d of firm transportation from Transco’s Compressor Station 195 in York County, PA, to the Rockaway Transfer Point, an existing interconnection between the Lower New York Bay Lateral and the Rockaway Delivery Lateral in New York State waters [PF16-5].

The project is fully subscribed. Transco said it has precedent agreements in place to provide 188,700 Dth/d of incremental firm service to The Brooklyn Union Gas Co. (d/b/a National Grid NY) and 211,300 Dth/d of incremental firm service to KeySpan Gas East Corp. (d/b/a National Grid).

Transco said it wants to start the pre-filing process by Monday (May 16). A draft of its first resource report and other documentation would likely be submitted to FERC in June, it said. A certificate filing for the project would likely follow in March 2017 with a request for Commission approval by May 2018.

Facilities being considered for the project are:

Transco’s previously filed New York Bay Expansion Project would also serve National Grid (see Daily GPI, July 10, 2015). Northeast Supply Enhancement would be in addition to the New York Bay project.