Trempealeau County, Wisconsin

Osseo Solar

A proposed 80-megawatt solar farm and 80-megawatt battery energy storage project in Trempealeau County, Wisconsin.
At a Glance

Project by the Numbers

80 MW
Solar Capacity
Proposed solar generation capacity
80 MW
Battery Storage Power
Proposed battery energy storage system power rating
320 MWh
Battery Storage Capacity
Planned energy storage capacity
64
Local Construction Jobs
Estimated new local jobs in Trempealeau County
Why This Project

A Clean Economic Opportunity for Wisconsin

Osseo Solar will bring clean, locally generated energy to Trempealeau County while delivering lasting economic benefits to the communities that host it. The project is expected to create local construction jobs, generate new earnings for area businesses, and provide annual tax revenue that supports township and county services — including schools, roads, and public infrastructure — for decades to come.

Wisconsin-Made Clean Energy

Osseo Solar will generate up to 80 MW of clean electricity right here in Trempealeau County, paired with an 80 MW battery storage system to deliver reliable, locally produced energy to the grid.
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Economic Benefits

The project will generate significant local tax revenue for Trempealeau County over its operational lifetime, helping fund schools, roads, and essential public services for years to come.
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Job Opportunities

Osseo Solar is expected to create approximately 64 local construction jobs in Trempealeau County, bringing new employment and economic activity to the region during the build phase.
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Why This Project

From Vision to Reality

Osseo Solar follows a transparent, multi-phase development process — from initial site selection through construction and long-term operation. Learn about each step and what to expect along the way.
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Why This Project

Why This Project Trempealeau County, Wisconsin

Osseo Solar is strategically sited in Trempealeau County, delivering clean power into the Wisconsin grid and supporting local communities with reliable, locally generated energy backed by battery storage.

  • 80 MW utility-scale solar facility with 80 MW / 320 MWh battery storage
  • Delivers power into the Wisconsin grid
  • Located on agricultural land with minimal footprint
  • Designed to complement the existing local landscape and infrastructure
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Owner & Operator

About Atlantica

Atlantica is a sustainable infrastructure company engaged across the entire project lifecycle — from origination, development, and financing to construction and long-term operational management. With over 3.6 GW in operation and 54 operating assets across North America, Europe, and South America, Atlantica is committed to powering the energy transition.
Visit Atlantica.com
Gallery

The Project in Pictures

Latest News

Project Updates

All updates
Project Milestone
Spring, 2026

Spring 2026 – Project Newsletter

Construction is officially underway at the Hickory Grove Solar Project. Ground was broken in February 2026, and civil works including grading, fencing, and underground collection line installation are now in progress across the southern portion of the project area.Approximately 180 construction workers are currently on site, with over 60% hired from Coles and Clark County…
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Community Outreach
Winter, 2025

Winter 2025 – Project Newsletter

As 2025 draws to a close, the Hickory Grove Solar Project is fully permitted and ready for construction. Pre-construction activities including access road grading and utility marking have been completed across the project area.We have finalized agreements with our primary EPC (Engineering, Procurement and Construction) contractor and have begun procurement of solar panels, inverters, and…
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Project Milestone
Fall, 2025

Fall 2025 – Project Newsletter

We are thrilled to announce that the Illinois Commerce Commission granted full construction approval for the Hickory Grove Solar Project in September 2025. This is the most significant milestone to date, clearing the way for construction to begin in early 2026.Atlantica has finalized the engineering design for all 847 acres of solar panels, inverter stations,…
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FAQ

Common Questions

Quick answers to the most frequently asked questions about the project.

At the end of the project’s operational life, the solar farm will be fully decommissioned in accordance with the approved decommissioning plan. Decommissioning includes removing all solar panels, inverters, racking systems, underground cabling, and related equipment. The land is then restored to its pre-project condition, consistent with local regulatory requirements and landowner agreements.

Construction timelines vary depending on project scale and conditions, but solar projects of this size typically take several months to approximately one year to complete. During this period, neighbors may notice increased vehicle and heavy equipment traffic on local roads. Atlantica coordinates with county and township authorities to minimize traffic disruption, manage construction hours responsibly, and keep the community informed of the construction schedule and any anticipated impacts.

Osseo Solar is being developed on privately leased agricultural land. Participating landowners receive long-term lease payments while the project is in operation. Surrounding farmland will not be disrupted by project operations, and Atlantica works closely with landowners and local stakeholders to ensure continued agricultural activity in the area where feasible. Vegetation management within the project boundary is also designed to be compatible with the rural landscape.

Multiple peer-reviewed studies have found that solar farms do not have significant long-term impacts on the property values of nearby homes or land. In many cases, the economic activity associated with a solar project—including local tax revenue and infrastructure investment—has a net positive effect on the surrounding community.

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Have questions about the project?

Our team is here to answer any questions you may have about the Osseo Solar project. Reach out and we'll get back to you as soon as possible.