Dakota County, Minnesota

Castle Rock Project

Delivering clean, reliable energy for Minnesota through utility-scale solar and battery storage.

At a Glance

Project by the Numbers

134,000 tCO₂e
Carbon Emissions Reduced
Estimated annual reduction in carbon dioxide equivalent emissions
150 MW
Solar Power
Maximum installed solar generation capacity
150 MW / 4h
Battery Storage
Battery power capacity and duration
20,750
Homes Powered
Estimated households supplied with electricity per year
Why This Project

A Clean Economic Opportunity for Minnesota

Castle Rock Solar will bring clean, locally generated energy to Dakota County while delivering lasting economic benefits to the communities that host it. The project combines utility-scale solar generation with battery storage to ensure reliable, on-demand power for Minnesota’s grid.

Minnesota-Made Clean Energy

Castle Rock Solar will generate up to 150 MW of clean electricity right here in Dakota County, paired with a 150 MW / 600 MWh battery storage system to deliver reliable, locally produced energy to the grid.

Economic Benefits

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

Job Opportunities

Castle Rock Solar is expected to create local construction jobs in Dakota County, bringing new employment and economic activity to the region during the build phase.

Why This Project

From Vision to Reality

Castle Rock Solar follows a transparent, multi-phase development process — from permitting and interconnection through construction and long-term operation. Learn about each step and what to expect along the way.

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Why This Project

Castle Rock Township, Dakota County, Minnesota

Castle Rock Solar is strategically sited in Castle Rock Township, delivering clean power into the Minnesota grid and supporting local communities with reliable, locally generated energy backed by battery storage.

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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.
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Gallery

The Project in Pictures

Latest News

Project Updates

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FAQ

Common Questions

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

The project is located in Castle Rock Township, Dakota County, Minnesota.

The project includes up to 150 MWac of solar generation and a battery energy storage system rated at up to 150 MW with a four-hour duration.

The project will contribute to local tax revenues, support short-term construction jobs, provide long-term clean energy benefits, and help strengthen regional energy reliability.

Construction is currently targeted to begin in 2028, following completion of permitting, interconnection agreements, and final engineering. As with all large infrastructure projects, the schedule may adjust based on regulatory approvals and market conditions.

Get in Touch

Have questions about the project?

Our team is here to answer any questions you may have about the Castle Rock Project. Reach out and we’ll get back to you as soon as possible.