Charleston Project

Dominion Energy Carolina Gas Transmission (DECGT) has completed the Charleston Project and it was brought into service on March 1, 2018. This natural gas infrastructure project is 100-percent dedicated to customers in South Carolina, with nearly 94 percent of the capacity serving South Carolina Electric & Gas and its customers. The remaining capacity will serve other businesses across the state. The Charleston Project is the largest expansion project in the history of DECGT, and the third growth project completed since 2015 when Dominion Energy began operations in South Carolina.

View our news release for additional details.

Dominion Energy submitted a pre-filing request in July 2015 with the Federal Energy Regulatory Commission (FERC), the agency responsible for reviewing and authorizing interstate natural gas transmission projects. The company received a Certificate of Public Convenience and Necessity in February 2017 from the FERC, which conducted a full review of the project in compliance with two federal statutes, the Natural Gas Act and National Environmental Policy Act.


Project Details

Project Schedule

Milestone Target/Status
File FERC Application March 2016
Receive FERC Approval February 2017
Begin Construction March 2017
Project In-Service March 2018

Project Facilities

The Charleston Project includes two new natural gas transmission pipelines, a new compressor station and upgrades to an existing compressor station.

Moore to Chappells Pipeline

  • Approximately 55 miles of new 12-inch diameter natural gas pipeline
  • Main line valves
  • Launcher station
  • Receiver station
  • Metering and regulation station

Dillon Pipeline

  • Approximately 5 miles of new 4-inch diameter natural gas pipeline

Moore Compressor Station (existing)

  • Installed two 1,400 horsepower compressor units
  • Installed additional gas cooling

Dorchester Compressor Station (new)

  • Constructed new compressor station with three 1,200 horsepower compressor units

Additional Project Information