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 / 4h
Battery Storage Capacity
Planned energy storage capacity
70
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.

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.

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.

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.

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.
Explore the Timeline
Why This Project

Why This Project in 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
Learn more about the project
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
Community Outreach
June 26, 2026

Thank you for Joining Our June Open House

Over 25 community members attended the June 8th Open House. The Conditional Use Permit is set for submission in September 2026.
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Community Outreach
June 5, 2026

Osseo Solar Supports Inclusive Play at Stoddard Park

Osseo Solar is proud to support the Osseo Community Foundation's Stoddard Park Inclusive Playground Initiative, helping create an accessible space where children of all abilities can play and connect together.
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Community Outreach
June 5, 2026

You’re Invited: Second Community Open House – June 8

Atlantica is hosting a second Open House for the Osseo Solar project on Monday, June 8th from 6–8pm CT at Grand Occasions in Osseo. Join us to meet our experts, learn about the project, and ask questions. Open to the public — light refreshments provided.
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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 12-18 months 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.

Get in Touch

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.