American Transmission Company (ATC), in a report received on July 17 by the Public Service Commission of Wisconsin, said that gross project expenditures on the Riverside Project as of June 30 were about $12.5m, or 29.7% of the authorized total of about $42.1m.
As TransmissionHub reported, the commission, in a Jan. 12 final decision, approved ATC’s June 2017 application for a certificate of public convenience and necessity (CPCN) regarding new 345-kV electric transmission facilities.
As noted in that decision, the West Riverside interconnection project includes 345-kV electric transmission facilities required to connect the West Riverside Electric Generation facility (West Riverside) to ATC’s existing electric transmission system. The commission noted that it has previously approved the construction by Wisconsin Power and Light (WP&L) of West Riverside in a separate docket.
Describing the transmission project and its purpose, the commission noted that ATC proposes to build a new loop-in, loop-out 345-kV transmission line from its Line W10. The project includes construction of a new 345-kV substation to be named Kittyhawk; a new loop-in, loop-out 345-kV, double-circuit line that will tap into existing ATC Line W10; an upgrade to the protective relay packages at the existing Paddock and Rockdale substations; and an upgrade to the protective relay settings at the existing Rock River and Townline Road substations.
The line would be built using weathering steel monopole structures with davit arms or a delta configuration, depending on the route segments selected, the commission said.
In its July filing submitted to the commission, ATC said that construction at the Kittyhawk substation has begun; construction on the transmission line will begin this month, including matting installation and vegetation clearing; and remote end construction will begin in March 2019.
The anticipated in-service date for the project is April 19, 2019.