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Towns of Harmony and La Prairie, Rock County, Wisconsin
Docket ID: 9809-CE-100
Application for a Certificate of Public Convenience and Necessity of Dawn Harvest Solar Energy LLC to Construct a Photovoltaic Electric Generation Facility, Battery Energy Storage System, and a 138 kV Generator Tie Line and Interconnection Switchyard in the Towns of La Prairie and Harmony, Rock County, Wisconsin.
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Application Summary
Overview
Dawn Harvest Solar, a wholly owned subsidiary of Invenergy Solar Development North America LLC, is seeking approval to construct a solar energy generating facility with a generating capacity of 150 MWac (megawatt alternating current) plus a 50 MW/200MWh (megawatt hour) Battery Energy Storage System (BESS) in the Town of La Prairie and Town of Harmony in Rock County, Wisconsin. The project study area that was evaluated is approximately 2,793 acres, of which, the proposed project arrays make up 927 acres, and the alternative project arrays make up 550 acres. The major components of the proposed project include PV panels, inverters, approximately 25 miles of underground 34.5 kilovolt (kV) collector circuits, a 138kV project substation, an approximately one mile 138 kV gen-tie transmission line to connect to the project substation, access roads, and an operation and maintenance building. The proposed project includes 16 fenced array areas, with 13 proposed array area sites and 19 alternative array area sites. Array areas can be identified by their fence boundary identification number, as seen in the attached map.
Applicant Stated Need
This project is proposed by an independent power producer. Therefore, the need for the project is not reviewed by the Commission.
Estimated Cost
This project is proposed by an independent power producer. Therefore, the Commission does not review the project cost. The cost to Wisconsin utilities, and ratepayers, would be reviewed if the facility or power from the facility is purchased by Wisconsin utilities.
Project Location
The applicant proposes to construct this project on 1,012 acres of land in the Town of Harmony and Town of La Prairie, Rock County, Wisconsin.
Proposed Schedule
- The applicant submitted the application to the Commission in April 2024.
- If approved, the applicant anticipates construction for this project to begin in April 2025 with an estimated completion date of December 2026.
Statutory Review
The solar electric generation facility is a
Type III action under
Wis. Admin. Code § PSC 4.10(3). The battery energy storage system (BESS) is a
Type II action under
Wis. Admin. Code § PSC 4.10(2). The Commission will prepare an Environmental Assessment (EA) for this project that will evaluate the location of the project and its potential environmental, community, and private property impacts. There will be a preliminary determination when the EA is complete that will determine whether the preparation of an Environmental Impact Statement is necessary. Comments on this preliminary determination will be accepted and considered before a final determination is made. At the time of the preliminary determination, the Commission shall make copies of the EA available to those persons that request it.
Key Application Documents
Access Docket 9809-CE-100 in the PSC Case Management System to view additional information.
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Access Docket 9809-CE-100
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