Virginia SCC approves construction of Dominion Virginia Power’s proposed substation, 230-kV lines

The Virginia State Corporation Commission (SCC) has authorized, with conditions, Virginia Electric and Power d/b/a Dominion Virginia Power to build and operate two proposed 230-kV transmission lines and a substation.

Specifically, in its April 17 final order, the SCCauthorized the construction of the 230-kV Cloverhill-Liberty transmission line, 230-kV Liberty Loop double-circuit transmission line and the 230-115-kV Liberty substation.

The decision comes less than a month after a hearing examiner with the SCC recommended that the commission grant the company’s application.

According to the order, the company proposes to build the substation in Prince William County, Va., on land it currently owns, and build the 230-kV line in Prince William County and the city of Manassas, Va. The line would run about 5.6 miles from the company’s existing Cloverhill substation in Prince William County through Manassas to the proposed Liberty substation within an existing right-of-way (ROW).

The company also proposes to build the Liberty Loop in Prince William County and Manassas. The line would run about two miles from a tap point on the company’s existing 230-kV Bristers-Gainesville Line #2101 to the proposed Liberty substation.

Dominion Virginia Power proposes to build the project to provide service to customers in Prince William County and Manassas and to accommodate a requested capacity increase from Northern Virginia Electric Cooperative (NOVEC) at its Gainesville delivery point, the SCC added.

According to the order, Dominion Virginia Power said the project must be in service by May 2015 to resolve projected NERC criteria violations, accommodate NOVEC’s requested capacity increase and maintain reliable service in meeting load growth in Prince William County and Manassas.

The estimated cost to build the project is about $44.9m, of which about $25.2m is for transmission work and about $19.7m is for substation work.

The SCC also said that it finds that the company’s load growth forecasts support the need for the project and that the project will meet the company’s long-term transmission reliability needs.

Also, the SCC said it found that the project will promote economic development in the state by maintaining the operational reliability of the lines. Furthermore, since the proposed project will be built along existing ROWs, adverse impacts on scenic assets and historic districts in the region will be minimized.

As a requirement of approval, the SCC said, the company is to comply with all of the recommendations provided in the state Department of Environmental Quality (DEQ) report. In its report, submitted to the SCC in September 2012, the DEQ recommended, among other things, that the company limit the use of pesticides and herbicides to the extent practicable and coordinate with Prince William County regarding its request for reviewing cultural resource studies and artifacts.

The SCC said the new transmission lines and substation must be built and in service by May 1, 2015, but Dominion Virginia Power is granted leave to apply for an extension for good cause shown.

Dominion Virginia Power is a subsidiary of Dominion Resources (NYSE:D).


About Corina Rivera-Linares 3286 Articles
Corina Rivera-Linares was TransmissionHub’s chief editor until August 2021, as well as part of the team that established TransmissionHub in 2011. Before joining TransmissionHub, Corina covered renewable energy and environmental issues, as well as transmission, generation, regulation, legislation and ISO/RTO matters at SNL Financial from 2005 to 2011. She has also covered such topics as health, politics, and education for weekly newspapers and national magazines.