Transcontinental Gas Pipe Line (Transco) has asked FERC for the go-ahead to place certain of its Mid-Atlantic Connector expansion facilities into service by the end of the month.

The Williams pipeline seeks to start up service by Dec. 20 on the project’s Bull Run Loop; Bull Run Replacement; and new 3,550 hp internal combustion-driven compressor unit at its Compressor Station 165 [CP11-31].

The project, which the Federal Energy Regulatory Commission approved in July, would provide an additional 142,000 Dth/d of firm service to meet growing gas demand in the southern market area. Transco proposes to abandon 30-inch diameter pipe in Fairfax County, VA, and replace it with a 42-inch diameter pipe, as well as install a 3,550 hp internal combustion-driven compression unit at its Compressor Station 165 in Pittsylvania County, VA.

Transco said it expects to file another request in the first quarter for authorization to place the remaining project facilities in service. The remaining facilities include the installation of a new 33,000 hp electric motor-driven compressor unit and replacement of an existing compressor at Compressor Station 175 in Fluvanna County, VA, resulting in a net addition of 15,400 hp of compression at Station 175.

Transco said it anticipates placing the electric motor-driven compressor unit in service by Feb. 28.

The facilities will include the net addition of 15,400 hp of compression at Transco’s existing Compressor Station 175 in Fluvanna County and the replacement of existing compression at the station, for a total of 33,000 of new horsepower.

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