Potomac Edison seeks approval for rebuild project
USA, Maryland, Halfway: Potomac Edison has with the Maryland Public Service Commission an application for a certificate of public convenience and necessity.
Image source: T&D World
USA, Maryland, Halfway: Potomac Edison has with the Maryland Public Service Commission an application for a certificate of public convenience and necessity.
The company requested authorization to rebuild the existing Doubs to Goose Creek transmission line located in Frederick and Montgomery counties in Maryland.
The Doubs-Goose Creek 500 kV transmission line is an approximately 18-mile, extra-high voltage (EHV) line linking the EHV system in Maryland to the EHV system in Virginia, the company said, adding that the Doubs-Goose Creek Rebuild would replace facilities that have been in service for more than 40 years and are approaching their expected end of life. As a result of the rebuild, the line’s maximum operating capacity would increase from 2,442 MVA to 4,330 MVA, the company said.
Potomac Edison noted that it owns 24.5 km (15.2 mi) of the 29.5 km (18.3 mi) Doubs-Goose Creek line in Maryland, while Dominion Energy Virginia owns the remaining 5 km (3.1 mi) of the Doubs-Goose Creek Line in Loudoun County, Va. Dominion has already started preparations to rebuild its portion of the line during the same period of time, Potomac Edison said, adding that it is now seeking approval to make a corresponding upgrade to the 24.5 km segment of the line in Maryland to address such concerns as potential overloads, the age of the existing facilities, and future growth in electrical demand.
The proposed route for the Doubs-Goose Creek Rebuild uses existing transmission corridors primarily owned in fee-simple by Potomac Edison and, therefore, would not deviate from the existing route, the company said.
According to the direct testimony of John Rostock Jr., on behalf of Potomac Edison, the total cost of the project is estimated at $66 M – $65 M for the transmission line rebuild and about $1 M for associated substation work.
Among other things, the company said that it requests that the commission issue a procedural schedule that would permit the commission to enter a final order granting the CPCN by January 2023, which would permit for construction, including the acquisition of equipment exclusively for use in project construction, to begin in spring 2023.
Source: T&D World
#Doubs-Goose Creek transmission line#EHV system#Potomac Edison#USA