Rice Lake Solar Array

The Rice Lake solar array is a 6.5 MW-AC photovoltaic solar generation array located in Rice Lake, Wisconsin. It was built in two phases. Phase 1 is 3.75 MW-AC and went into commercial operation in August 2021. Phase 2 is 2.75 MW-AC and was interconnected commercially in October 2024. The Rice Lake solar array will provide on-site renewable energy to cover a portion of the City of Rice Lake's energy consumption for the next 30 years. OnSite Partners Projectco, LLC built, owns, and operates this solar array.

Facts at a Glance

Frequently Asked Questions

What are the main benefits?

The solar array provides peak shaving when we need it most (during high loading hours). In addition, there is less stress on the distribution system. 

How big is the site?

58.5 acres

How much did the project cost?

The OnSite Partners Projectco, LLC investment in the project was about $11 million, not including the cost of the land that Rice Lake Utilities purchased.

Do the panels tilt with the sun?

Yes, the panels tilt with the sun. In addition, they are bifacial, meaning that they can capture reflected sunlight from the ground.

How much does the solar array contribute to Rice Lake Utilities' power supply?

Each utility has to meet state standards for renewables. The current state standard is 12.5% of our total MWH's. The Lakeswind wind facility in Rollag, Minnesota accounts for about 19% of our total power supply and the solar array accounts for around 8% of our total power supply.

How much energy does the solar array produce?

About 12,000 megawatt hours per year

Is this a community solar project?

No, this is not community solar, so there is no buy-in for the customer. It is owned and maintained by OnSite Partners Projectco, LLC on land owned by Rice Lake Utilities. We just buy the power and enjoy the benefits.

Do trees obstruct the sunlight?

No, trees do not obstruct the sunlight.

Can we add on to this system in the future?

There is not room to install more solar panels. We may be able to have battery storage in the future.

Graphs

• Actual vs. expected power

• Generation

Residential Solar Resources

• Planning a Home Solar Electric System

• Homeowner's Guide to the Federal Tax Credit for Solar Photovoltaics

• Focus on Energy Incentives

• Tips for buying a system and selecting a contractor

Additional Information

• Wisconsin Distributed Generation Interconnection Guidelines

• Electric Rate Tariff

Distributed Generation Forms

• Standard Distributed Generation Application Form

• Change of Ownership

• Solar Photovoltaic Supplement

• Energy Storage Supplement

• Generator Supplement