American Transmission Company (ATC) on Oct. 17 told the Public Service Commission of Wisconsin that gross project expenditures as of Sept. 30 for the Riverside Project were about $25.5m, or about 60.7% 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 October filing submitted to the commission, ATC said that below grade construction at the Kittyhawk substation is almost complete and that above grade construction was to begin the week of Oct. 15.
Matting installation and vegetation clearing for the transmission line has been completed, ATC said, adding that foundation installation is halfway completed, and that the hauling of structures to the right of way (ROW) will begin the week of Oct. 22. Remote end construction will begin next March, the company said.
Discussing environmental updates, ATC said that all permits have been received and that work is occurring in compliance with permit conditions.
The project’s anticipated in-service date is April 2019, ATC said.