Corporate

Loudoun to Pleasant View 500kV Rebuild Project

Dominion’s service territory continues to be one of the fastest growth areas in PJM and Loudoun County is still experiencing above average electrical growth, primarily driven by data center development.

A crucial 13-mile line through Loudoun County is nearing the end of expected life and requires replacement to maintain reliability.

The proposed Loudoun to Pleasant View 500kV Rebuild Project reduces the risk of a major failure of the region’s high-voltage network without the need to obtain additional easements. No right-of-way expansion is needed for this rebuild project.

Approval is required by the Virginia State Corporation Commission (SCC). An application was filed with the SCC in October 2013.

Project Details

Project Overview

The south terminal substation for the new line will be Mosby (adjacent to Loudoun) and the north terminal substation will be Goose Creek (near Pleasant View).  At the conclusion of the Project, the rebuilt 500 kV Loudoun-Pleasant View Line #558 will be split and renamed as Brambleton-Goose Creek Line #558 and Brambleton-Mosby Line #590.

Rebuilding this line will:

  • NOT require new right-of-way 
  • Replace aging infrastructure prior to equipment failure
  • Replace structures at, or very near, the current locations with new structures, ranging from 30’-40’ taller (subject to final engineering)
Route Maps
Project Need
  • Aging infrastructure -- This line through Loudoun County is a portion of the 350-mile "500kV loop" built in the mid-1960’s. After more than four decades of operation, the structures and equipment are approaching the end of their expected service life and require replacement to maintain reliability. Taking proactive steps now to replace the aging equipment before it fails will ensure greater reliability for our customers and the regional system.
  • Growth in local and regional demand -- Dominion's service territory continues to be one of the fastest growth areas in PJM and Loudoun County is still experiencing above average electrical growth, primarily driven by data center development.
Project Benefits
  • Reduces the risk of a major failure of the high-voltage network
  • Improves local and regional electric reliability
  • Increases capacity of the lines through the corridor
Proposed Timeline
  • Summer 2013 -- Outreach to stakeholders and regulatory entities
  • Fall 2013 – File application with Virginia SCC
  • Winter 2014/2015 -- Initiate construction activities
  • Spring 2016 -- Energize rebuilt line
Contact Us

 Contact us if you have questions or concerns about the Loudoun-Goose Creek 500kV Rebuild Project.

NYSE : (April 17, 2014) D 70.67 -0.86