Williams Partners received Federal Energy Regulatory Commission (FERC) approval to expand Transco, the nation’s largest natural gas pipeline system, to provide service to a customer’s new, gas-fired, power-generation plant in Virginia. A unit of Dominion plans to construct the 1,358-MW facility in Brunswick County to replace generating capacity from retiring coal-fired plants.
The $300 million Transco Virginia Southside Expansion will provide 270,000 Dth/d of incremental transportation capacity in Virginia and North Carolina by September 2015. Of the total expanded capacity, more than 90% will serve Dominion Virginia Power’s new power plant; the remainder will serve Piedmont Natural Gas Company’s local distribution business in North Carolina.
The extension involves 100 miles of 24-inch pipeline. Transco’s plan is to place the pipe in parallel to its own existing pipeline alongside the utility corridor. Transco is adding more than 21,000 horsepower of compression at Station 165 in Pittsylvania County, VA.