Coordinated Project Plan — Legislative Status Report
Prepared pursuant to MN Statute 84.0265, Subd. 7(c) & Subd. 8
Report Date: March 4, 2026
Project Information
| Project Name | SunPrairie Solar Panel Manufacturing Facility |
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| Applicant | SunPrairie Energy Manufacturing LLC |
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| Lead Agency | Minnesota Pollution Control Agency |
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| Location | Marshall, MN (Lyon County) |
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| Sector | Clean Energy |
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| Estimated Cost | $520,000,000 |
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| Current Status | Permitting |
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| CPP Requested | November 1, 2024 |
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| CPP Prepared | December 20, 2024 |
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| Requires EIS | No (Subd. 6(b): 18-month deadline) |
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| Statutory Deadline | June 5, 2026 |
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Participating Agencies (Subd. 5(a)(1))
| Agency | Role |
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| Minnesota Pollution Control Agency (MPCA) | Lead agency for environmental review and air/water permitting |
| Department of Employment and Economic Development (DEED) | Economic impact review and workforce development coordination |
| Minnesota Department of Health (MDH) | Health impact assessment and drinking water protection |
| Minnesota Department of Transportation (MnDOT) | Transportation access and road impact analysis |
Milestone Progress
8 of 9 milestones completed. 489 days in review.
| Milestone | Agency | Original Date | Current Date | Actual Date | Status |
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| EAW Submitted | MPCA | November 1, 2024 | November 1, 2024 | November 1, 2024 | complete |
| EAW Deemed Complete | MPCA | December 1, 2024 | December 1, 2024 | December 5, 2024 | complete |
| CPP Prepared | MPCA | January 30, 2025 | January 30, 2025 | December 20, 2024 | complete |
| EIS Need Decision (No EIS) | MPCA | March 1, 2025 | March 1, 2025 | February 28, 2025 | complete |
| Air Permit Application | MPCA | April 1, 2025 | April 1, 2025 | April 1, 2025 | complete |
| Air Permit Issued | MPCA | October 1, 2025 | October 1, 2025 | September 28, 2025 | complete |
| Wastewater Pretreatment Permit | MPCA | November 15, 2025 | November 15, 2025 | November 10, 2025 | complete |
| Hazardous Waste Storage Permit | MPCA | February 1, 2026 | February 1, 2026 | January 30, 2026 | complete |
| Highway Access Permit | MnDOT | January 15, 2026 | March 15, 2026 | — | on-track |
Deadline Modifications (Subd. 7)
Combined timeline extension: 13% of original schedule.
| Milestone | Original Date | Modified Date | Justification |
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| Highway Access Permit | January 15, 2026 | March 15, 2026 | Traffic study required additional data collection during winter months |
Quarterly Updates (Subd. 5(b))
Q4 2024 (December 31, 2024): CPP prepared ahead of schedule. Strong community support. No EIS expected.
Q1 2025 (March 31, 2025): Negative declaration on EIS need. Air permit application submitted. DEED economic impact review complete.
Q2 2025 (June 30, 2025): Air permit review progressing. Wastewater pretreatment design under review.
Q3 2025 (September 30, 2025): Air permit issued ahead of schedule. Wastewater permit on track.
Q4 2025 (December 31, 2025): Wastewater pretreatment permit issued. Hazardous waste permit nearing completion.
Q1 2026 (March 31, 2026): Nearly all permits issued. MnDOT highway access permit delayed for winter traffic study. Facility construction underway.