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Powerlines101 - Learning Zone: Learn how we build and maintain transmission lines.

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Project Overview

Completion of the Idylwood-Tysons Project enables 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.

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In 2023, construction of the new underground electric transmission line was completed and energized.

Benefits

Enable Dominion Energy to continue to provide reliable power to the area.

Timeline (View Full Timeline)

May 2020 - Postcard mailed to the community announcing permit approvals and start of construction
October 15, 2019 - Construction Informational Open House (5:30 pm - 7:30 pm) 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.

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888-291-0190

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powerline@dominionenergy.com

Updates

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January 18, 2022 - Mailed a project update letter to Phase I about extended work hours
October 14, 2021 - Mailed to the community a postcard announcing a break in construction for the open trench work
September 3, 2021 - Mailed project update letter and fact sheets
August 16, 2021 - Mailed community meeting postcard invitation
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
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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Interactive Portal

Powerlines 101 - Learning Zone

Learn how the energy grid works; along with our processes to build and maintain electric transmission lines.

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