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Quanta Services wins contract to build 230-kV transmission line in Ontario

Quanta Services Inc. won a contract from NextBridge Infrastructure to construct the Ontario East-West Tie Line transmission project in northwestern Ontario.

Quanta, through its subsidiary Valard Construction, said Dec. 12 that it will provide comprehensive construction services, including the installation of approximately 290 miles (about 450 kilometers) of 230-kV transmission line connecting Hydro One Ltd.'s Wawa, Marathon and Lakehead transformer stations.

The award of the construction contract comes not long after the Ontario Independent Electricity System Operator, or IESO, issued an updated assessment reaffirming that the transmission line is the most cost-effective solution for increasing electricity transfer capability into northwestern Ontario, recommending a 2020 in-service date.

Ontario Minister of Energy Glenn Thibeault said in a Dec. 4 letter acknowledging the IESO's updated assessment, "The government of Ontario continues to support this project to ensure long-term supply stability in the Northwest. ... The IESO's updated needs assessment affirms that the [East-West Tie] is an appropriate transmission priority."

NextBridge Infrastructure, known legally as Upper Canada Transmission Inc., was selected as the project developer in 2013 and earlier this year revised the overall estimated cost of the project upward, to C$777 million. The revised estimate also includes upgrades by Hydro One to the existing transformer stations.

NextBridge and Hydro One have filed separate applications for leave to construct the project with the Ontario Energy Board. NextBridge's application (Docket No. EB-2017-0182) is for the transmission line segments while Hydro One's application is for the transformer station work. (Docket No. EB-2017-0194)

NextBridge Infrastructure is a partnership between affiliates of NextEra Energy Canada LP, Enbridge Inc. and OMERS Infrastructure Management Inc., established to participate in the Ontario transmission market. NextEra Energy Canada is a subsidiary of NextEra Energy Inc.