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Idylwood-Tysons
Overview

Completion of the Idylwood-Tysons Project will enable Dominion Energy to continue providing reliable electric service to the area.
By constructing an additional source of power, Dominion Energy avoids a potential violation of mandatory North American Electric Reliability Corporation (NERC) reliability standards. The Idylwood-Tysons 230 kilovolt (kV) Project was proposed to enable Dominion Energy to continue to provide reliable power to the area.
Benefits
- Enable Dominion Energy to continue to provide reliable power to the area.
Documents
- January 18, 2022 - Project update letter about extended work hours
- October 14, 2021 - Postcard announcing a break in construction for the open trench work
- September 3, 2021 - Project update letter and fact sheets
- May 3, 2021 - Horizontal Directional Drilling Delays Project Update Video
- March 31, 2021 - Project Update Video and Independent Review from MPR
- March 11, 2021 - Milestone Update Video
FAQs
For more questions and concerns, please call 888-291-0190 Monday–Friday 8 a.m.–5 p.m., or email powerline@dominionenergy.com.
The project team worked with the local community to develop our route recommendation to the Virginia State Corporation Commission. Through two open houses held in Sept. 2017 and one held in Oct. 2019, the public met with our subject matter experts to learn details on the project. As we begin various components of the proposed project, it is important that we not only keep you informed, but we hear your feedback. We invite you to follow the progress of each phase and receive up-to-date project information, including allowable work hours, on our new and interactive web portal.
In addition, you may also contact us and add your address and email to our distribution list.
The new transmission line is being developed in a heavily populated, urban area. The decision to propose an underground line was influenced by space limitations and the potential to require a large amount of new right-of-way which would pose significant impacts on residences, wetlands, parks, and conservation easements.
The Virginia State Corporation Commission Guidelines of Minimum Requirements for Transmission Line Applications Filed Under Virginia Code Section 56-46.1 and The Utility Facilities Act require the Company to provide routing information on viable alternatives. Our legal interpretation of these guidelines, combined with decades of regulatory precedent, confirm that analysis of a viable overhead route must be included in the application if one exists.
Yes. View a number of end point sites considered for this project.
As part of our regulatory applications, Dominion Energy completes an evaluation of potential environmental, cultural, and historical impacts of the project. Dominion Energy works with local and state agencies to complete these evaluations and mitigate any impacts. All required permits are obtained and permitting conditions are met. Permitting agencies typically include the US.
Legal
SCC Application
The Virginia State Corporation Commission (SCC) is responsible for verifying the need, determining the route and reviewing the environmental impact of certain transmission lines in Virginia. On November 8, 2017, Dominion Energy filed its application with the SCC.
Documents related to the case are available to the public on the SCC Docket of the SCC website or search by Case No. Case No. PUR-2017-00143 in the “Search Cases” section. In addition, interested parties may visit the SCC Case Comments Page where individual mailboxes are available for each case accepting public comments. Please note, the mailbox may not be available until a scheduling order is issued, typically several weeks after an application is filed.
SCC Timeline
- September 5, 2018 - SCC Final Order approving the Idylwood-Tysons transmission project
- July 26, 2018 - SCC Hearing Examiner’s Report issued in response to the proposed project
- June 12, 2018 - Evidentiary Hearing
- June 1, 2018 - Public Comments, extended from May 1, 2018
- May 11, 2018 - Dominion Energy Rebuttal due, extended from April 12, 2018
- May 8, 2018 - Public Evidentiary Hearing, receiving public witnesses
- April 27 2018 - SCC Staff Report due, extended from March 27, 2018
- February 26, 2018 - Local Public Hearing, Shrevewood Elementary School, Falls Church, VA
- February 16, 2018 - SCC Hearing Examiner grants Fairfax County’s motion for extension of procedural schedule
- February 9, 2018 - Notices of Participation
- December 8, 2017 - The SCC issues Procedural Order for proposed Idylwood-Tysons project
- November 8, 2017 - File application with the VA State Corporation Commission
Meetings
February 2, 2022
Direct Pipe® Work Virtual Community Meeting
August 27, 2021
Virtual community meeting
View invitation postcard for August 27, 2021 meeting
View recording of August 27, 2021 meeting
August 26, 2021
In-Person Community Meeting
Grace Presbyterian Church
Vienna, VA 22180
October 15, 2019
Construction Informational Open House
5:30 p.m.–7:30 p.m.
Kilmer Middle School
8100 Wolftrap Road
Vienna, VA 22182
February 26, 2018
Local Public Hearing
Shrevewood Elementary School
Falls Church, VA 22043
September 27, 2017
Open House
Kilmer Middle School
Vienna, VA 22182
September 26, 2017
Open House
Shrevewood Elementary School
Falls Church, VA 22043
Additional Presentations
Timeline
2023
2023
Construction of the new underground electric transmission line complete, and line energized
2022
2022
Project need date
2020
May 2020
Mail postcard to the community announcing permit approvals and start of construction
March 2020
Obtain construction general permits for trenching and horizontal directional drilling (HDD) sections
2018
September 5, 2018
SCC issues Final Order approving the Idylwood-Tysons transmission project
January 26, 2018
Landowner, Gov’t Official and Public Notice
2017
November 8, 2017
File application with the VA State Corporation Commission
October 5, 2017
Focus Group #3
September 26 & 28, 2017
Open Houses
August 24, 2017
Focus Group #2
July 27, 2017
Focus Group #1
Spring 2017
Outreach to local legislators
