FERC issues enviro review on Dominion gas pipeline capacity expansion in New York

The Federal Energy Regulatory Commission on Oct. 20 put out for comment until Nov. 19 an environmental assessment (EA) for the New Market Project proposed by Dominion Transmission Inc. (DTI), covering new and existing gas pipeline facilities in several counties in New York.

The FERC staff concludes in the EA that approval of the proposed project, with appropriate mitigating measures, would not constitute a major federal action significantly affecting the quality of the human environment.

In June 2014, DTI filed an application with the commission for authorization under Section 7(c) of the Natural Gas Act and Part 157 of the commission’s regulations for a Certificate of Public Convenience and Necessity to construct and operate this project.

According to DTI, this project would serve additional demand, respond to customer requests to increase supply diversity, and alleviate the possibility of shortages by delivering an additional 112,000 dekatherms per day of transportation service along DTI’s existing gas transmission system in New York. According to DTI’s preliminary schedule, construction of the project would begin after January 2016 and placed into service by Nov. 1, 2016.

The New Market Project would consist of:

Horseheads Compressor Station

DTI would construct and operate a new 11,010 hp compressor station in Chemung County. The facility would require new site development, including:

  • one 11,010 hp Solar Taurus 70 combustion turbine;
  • two 42-inch-diameter gas suction/discharge pipelines to connect the new station to DTI’s existing transmission pipelines approximately 1,425 feet west of the proposed compressor station;
  • three microturbines to generate electrical power for the compressor station;
  • four new structures (compressor building, auxiliary building, utility gas building, and drum building); and
  • installation of a new mainline valve assembly on the existing pipeline between the new suction/discharge lines.

Sheds Compressor Station

DTI would construct and operate a new 10,880 hp compressor station in Madison County. The facility would require new site development, including:

  • one 10,880 hp Solar Taurus 70 combustion turbine;
  • two 42-inch-diameter gas suction/discharge pipelines to provide onsite interconnection with an existing DTI transmission line;
  • four microturbines to generate electrical power for the compressor station;
  • four new structures (compressor building, auxiliary building, utility gas building, and drum building); and
  • a new 25-foot-wide, 775-foot-long access road from the proposed new compressor station to Wilcox Road.

Brookman Corners Compressor Station

DTI would construct and operate an additional 11,133 hp of compression at its existing Brookman Corners Compressor Station in Montgomery County. Facility improvements would include:

  • one new 6,393 hp combustion turbine;
  • two new 2,370 hp reciprocating engines;
  • two new gas coolers;
  • one new meter station (the Canajoharie 2 Meter Station);
  • expansion of existing compression and auxiliary buildings;
  • a new non-custody transfer building; and
  • replacement of existing auxiliary generator.

Borger Compressor Station

DTI would construct and operate additional facilities at its existing Borger Compressor Station in Tompkins County. Facility improvements would include:

  • two new gas coolers; and
  • three additional 65 kilowatt (kW) microturbines for electrical power generation.

Utica Compressor Station

DTI would construct and operate additional facilities at its existing Utica Compressor Station in Herkimer County. Facility improvements would include:

  • one new gas cooler; and
  • additional piping, valves, and fittings.

West Schenectady Meter Station

DTI would modify its existing West Schenectady Meter Station in Schenectady County to include:

  • one indirect fired heater;
  • two new sections of 42-inch-diameter gas suction/discharge pipe to provide onsite interconnection with DTI’s existing transmission line;
  • one new meter; and
  • expansion of the existing meter station building.
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.