Dominion Energy Virginia, Fairfax County (Va.) board file stipulation regarding proposed 230-kV project

Virginia Electric and Power (Dominion Energy Virginia) and the Fairfax County (Va.) Board of Supervisors – collectively referred to as the stipulating parties – on June 8 filed with the Virginia State Corporation Commission a stipulation regarding a 230-kV project proposed by the company.

As noted in the “joint motion for leave to present stipulation and recommendation,” Dominion Energy Virginia last November filed with the commission an application for a certificate of public convenience and necessity to build a new single-circuit, 230-kV, underground transmission line, designated the 230-kV Idylwood-Tysons Line #2175, to run about 4.3 miles from the company’s existing Idylwood substation to the company’s existing Tysons substation, with the project located entirely in Fairfax County.

The company also sought approval to rebuild the Tysons substation using Gas Insulated Substation (GIS) equipment to accommodate a six-breaker, 230-kV ring bus within the existing property boundaries; to install new Gas Insulated Line (GIL) terminal equipment at the Idylwood substation for the new Line #2175 installation; and to perform relay work at the Reston substation.

The joint motion also noted that the company further requested approval for the replacement of a tower near its Idylwood substation, Structure #2097/177, as part of its application – referred to as the replacement tower proposal.

The stipulating parties have negotiated the stipulation as a proposed resolution of all issues in dispute between them, and agree that the Idylwood-Tysons Project is needed, that the company has met the statutory requirements for approval, and that “Underground Alternative 05” is the optimal route for the project.

The joint motion added, “The stipulating parties agree that the Idylwood-Tysons Project should be approved and that a certificate of public convenience and necessity should be issued. The stipulating parties also agree that the replacement tower proposal should be approved as set forth in the application.”

According to the stipulation, there is an immediate and current need for the Idylwood-Tysons Project, which would maintain reliable service to the overall growth in the area, as well as resolve a potential criteria violation of the mandatory NERC Reliability Standards for the 230-kV lines feeding the substations serving the Tysons and McLean areas of Fairfax County – the Tysons Loop.

Underground Alternative 05, or the stipulated route, is about 4.3 miles long, the stipulation said, adding that with the exception of the first mile, the route would be built primarily within the roadbed of existing roads. The route follows Dominion Energy Virginia’s existing Line #2035 out of the Idylwood substation for about 0.2 mile, heading north across Shreve Road. At the W&OD Park, the stipulation added, the route turns west to follow Line #202 parallel with the park for about 0.1 mile, crossing under I-66 and the WMATA Orange Line, and then parallel with the W&OD Park trail for about 0.6 mile, crossing I-495, Nottingham Drive, and Sandburg Street. The route then continues for about 1.9 miles, turning north and following Gallows Road, crossing Idylwood Road, Elm Place, Electric Avenue, Cedar Lane/Oak Street, Wolftrap Road, Madron Lane, Tyson Oaks Drive (2 crossings), Science Applications Court, Gallows Branch Road Road/Aline, and Boone Boulevard.

The stipulation added that the route crosses Leesburg Pike and continues in a northeast direction along International Drive for about 1.3 miles, crossing Fletcher Street, Tysons Corner Center, Chain Bridge Road, the WMATA Silver Line, Galleria Drive, Greensboro Drive, Tysons Boulevard, Westpark Drive, Lincoln Circle (2 crossings), and Lincoln Lane. Just prior to reaching Jones Branch Drive, the route turns west and southwest following Spring Hill Road for 0.1 mile, the stipulation said, adding that the route then turns west to follow Tyco Road for about 0.1 mile before entering the Tysons substation.

Among other things, the stipulation said that the stipulating parties agree to move all pre-filed testimony into the record in the proceeding without cross-examination, with the following stipulation to amend and supplement the direct testimony of a Fairfax County witness, as well as the rebuttal testimony of a company witness:

  • The company recognizes Fairfax County’s concern regarding prevention of harm to public and private stormwater and wastewater infrastructure along the commission-approved route for the project. The company will coordinate directly with the County Maintenance and Stormwater Management Division, Wastewater Planning & Monitoring Division and Wastewater Collections Division to avoid and minimize impacts and ensure adequate clearance from county stormwater and wastewater infrastructure. The stipulating parties agree to work together during the design phase of the project to determine the instances and situations along the commission-approved route where the use of closed circuit TV is appropriate, recognizing that based on the location of the company’s underground transmission line and county stormwater/wastewater facilities, CCTV use may not be needed or other agreed-upon reasons eliminating the need for CCTV use. Based on those agreed-upon circumstances, the company will use pre-construction and post-construction CCTV to capture the condition of both stormwater and wastewater pipes that are within the limits of disturbance of the duct bank and horizontal directional drill locations of the commission-approved transmission line within Fairfax County

Among other things, the stipulation noted that the stipulating parties agree to waive closing arguments, post-hearing briefs, and comments on the hearing examiner’s report, if the stipulation is accepted in its entirety.

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.