Nemadji Trail Energy Center Project

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City of Superior, Douglas County​, Wisconsin

Docket ID: 9698​-CE-100

Application of South Shore Energy, LLC and Dairyland Power Cooperative for a Certificate of Public Convenience and Necessity for the Nemadji Trail Energy Center Combined-Cycle Project, to be Located in the City of Superior, Douglas County, Wisconsin. ​

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Application Summary

Overview

South Shore Energy, LLC (SSE), a subsidiary of ALLETE, Inc. and Dairyland Power Cooperative are proposing to construct a natural gas electric generating facility with a capacity of approximately ​550 megawatts (MW). The project will consist of one H-class gas turbine generator (GTG), one heat recovery steam generator (HRSG) with duct firing, and one steam turbine generator (STG). The generating facility will be named the Nemadji Trail Energy Center (NTEC) facility. The project is part of a larger group of projects which include the construction of a 345-kV transmission line (Docket Number
9698-CE-101), the relocation of an existing Superior Water, Light & Power (SWL&P) 10-inch gas pipeline (Docket Number 5820-CG-106), and the construction of a new SWL&P 16-inch lateral natural gas pipeline that would tap the existing Great Lakes Gas transmission pipeline (Docket Number 5820-CG-105). ​

Applicant stated need

This project is proposed by an independent power producer (SSE) and Dairyland Power Cooperative. As such, the need for the project was not reviewed by the Commission.

Estimated cost

This project is proposed by an independent power producer, and the Commission does not review the project cost. The cost to Wisconsin utilities, and ratepayers, would be reviewed if the power from the facility is purchased by Wisconsin utilities.

Project location

The project will be constructed in the City of Superior, Wisconsin. The plant will be entirely within Douglas County. The p​roject is near several other towns in Wisconsin, including Parkland; the Town of Superior; and the Village of Superior.

The power plant site will be east of the existing Enbridge Energy Superior Terminal facility on the banks of the Nemadji River. The site is approximately 26.3 acres in size with an additional approximately 24.8 acres of staging and laydown area across the street on 31st Avenue East. The project will include an approximately 3.7 mile 345-kV transmission line tap at the existing Arrowhead to Stone Lake Transmission Line as well as a new switching station located southeast of the power plant site.

Proposed schedule

• The natural gas pipeline portion of the project is anticipated to begin construction in the fourth quarter of 2022, with commercial operation in the fourth quarter of 2025.
  
• The power plant portion of the project is anticipated to begin construction in the second quarter of 2023, with commercial operation in 2027.
  
• ​​The transmission tie-line portion of the project is anticipated to begin construction in the fourth quarter of 2023, with commercial operation in 2027.
  

Key Application Documents

• Application for Certificate of Public Convenience and Necessity (January 2019​)​​​
  

• PSC Final Environmental Impact Statement (September 2019)​​​
  

• PSC Final Decision (January 2​020)​​​
  

Case Contacts and Additional Information

Access Docket 9698​-CE-100 in the PSC Case Management System to view​ additional information.

Utilize the Staff Involved tab for contact details for PSC staff assigned to the docket, including the case coordinator and the environmental review coordinator.

Click the Documents tab for a complete list of docket documents categorized by document type.​