Idylwood Tysons

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Updates

In order to keep our neighbors informed about the construction process for this project, a new interactive web portal is now accessible.

May 2020 - Postcard mailed to the community announcing permit approvals and start of construction
October 15, 2019 - Construction Informational Open House (5:30 - 7:30 p.m.) Kilmer Middle School, 8100 Wolftrap Road, Vienna, VA 22182
September 5, 2018 - The SCC issued its final order approving the Idylwood-Tysons transmission project.
July 26, 2018 - The SCC Hearing Examiner’s Report was issued in response to the proposed project.
February 16, 2018 - SCC Hearing Examiner grants Fairfax County’s motion for extension of the procedural schedule.
December 8, 2017 - The SCC issued its Procedural Order for the proposed Idylwood-Tysons project.
November 8, 2017 - We filed an application for a Certificate of Public Convenience and Necessity with the Virginia State Corporation Commission (SCC) for a new 230 kilovolt (kV) line between our existing Idylwood and Tysons substations in Fairfax County.

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Overview & Project Description

By approximately 2022, load on the existing lines in the Tysons and McLean areas of Fairfax County is forecast to exceed 300 megawatts. By constructing an additional source of power, Dominion Energy will avoid a potential violation of mandatory North American Electric Reliability Corporation (NERC) reliability standards. The Idylwood-Tysons 230 kilovolt (kV) Project is being proposed to enable Dominion Energy to continue to provide reliable power to the area.

Community Engagement

At Dominion Energy, we are committed to keeping our neighbors informed about energy needs where they live and work. As we continue to analyze the various components of the proposed project, it is important that we not only keep you informed, but we hear your feedback.

As the project develops, we will:

Continue outreach by communicating with legislators, homeowner associations and other identified stakeholders; and
Provide ongoing communications through informational materials, mailings, email updates and a project website.

Open Houses - Sept. 26, 2017 & Sept. 28, 2017

Routes Under Review - Detailed Maps - September 2017
All Routes Studied
Routes Under Review - September 2017
Project Need
Overhead vs. Underground
Structure Types
Structure Finishes

Focus Groups

Notes from Focus Group #1 - July 27, 2017
Notes from Focus Group #2 - August 24, 2017
Notes from Focus Group #3 - October 5, 2017

Maps

UG Route
Routes Under Review - Detailed Maps - September 2017
All Routes Studied
Routes Under Review - September 2017
Map of substation end points considered
Routes Under Consideration - September 2017
Potentially Impacted Areas
Routes Noticed in SCC Application

Presentations

Project Overview – Summer 2017
Transmission Line Routing Considerations

Timeline

*Updated* 2022 – Project need date
March 2020 – Obtained construction general permits for trenching and horizontal directional drilling (HDD) sections
Sept. 5, 2018 – SCC Final Order of approval issued
June 12, 2018 – Evidentiary Hearing will begin at 10:00 am
May 08, 2018 – Public Evidentiary Hearing, 10:00 am, SCC, Richmond, VA - receiving public witnesses
May 01, 2018 – Public Comments - Extended to June 1, 2018
April 12, 2018 – Dominion Energy Rebuttal due - Extended to May 11, 2018

March 27, 2018 – SCC Staff Report due - Extended to April 27, 2018
February 26, 2018 – Local Public Hearing – Shrevewood Elementary School, Falls Church, VA, 7:00 pm
February 9, 2018 – Notices of Participation
January 26, 2018 – Landowner, Gov’t Official and Public Notice
November 8, 2017 – File application with the VA State Corporation Commission
October 5, 2017 – Focus Group #3
September 26 & 28 - Open Houses
August 24, 2017 – Focus Group #2
July 27, 2017 – Focus Group #1
Spring 2017 – Outreach to local legislators

SCC Applications

The State Corporation Commission (SCC) is responsible for verifying the need, determining the route and reviewing the environmental impact of certain transmission lines in Virginia.

Application Documents

Volume 1 of 3 - (27 mb)
Volume 2 of 3 - (19.4 mb)
Volume 3 of 3 part 1 - (7.68 mb)
Volume 3 of 3 part 2 - (26.7 mb)
Volume 3 of 3 part 3 - (27.7 mb)

FAQs

How can residents and business owners in the community become involved in this process?

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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.

Will Dominion Energy propose putting this line underground or overhead?

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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.

Why would Dominion Energy consider pursuing an overhead line in such a densely populated area?

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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.

Did Dominion Energy consider any other locations to end the new line besides the Tysons Substation?

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Locations Considered

What will be the environmental impact of construction of the line?

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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.

Easements

Understand easements and right of ways.

EMF

Understand electric and magnetic fields.

Virtual Open House

We invest in our electric transmission system because we're committed to providing safe, reliable energy.