Grinnell Solar Park

About the project


Alliant Energy has partnered with the city of Grinnell, Grinnell College, Mayflower Community and Ahrens Park Foundation to operate four solar projects nestled together in a solar park in Grinnell, Iowa. The Grinnell Solar Park falls under the Alliant Energy® Customer-Hosted Renewables program that allows business and municipal customers lease their land for renewable energy projects. We’ll distribute the clean energy this project generates directly to the community.

Fast facts

  • Developer: The Waldinger Corporation
  • Size: 5 MW
  • Panels: 9,500

Why solar?


Clean energy, including solar, has become increasingly cost effective in the last few years. Solar projects generate energy for customers to enjoy for many years, with no added fuel costs and low operation and maintenance costs. With this solar project, these community partners showcase their commitment to sustainability.

Alliant Energy owns and operates the Grinnell Solar Park to efficiently deliver affordable, reliable and safe energy to homes, businesses and communities. Partnering with customers to develop solar projects is just another way we keep our customers at the heart of everything we do.

Clean Energy Blueprint


The Grinnell Solar Park is part of our Clean Energy Blueprint, a strategic roadmap to cost-effectively accelerate our transition to renewable energy and reduce carbon emissions. Our sustainability goals include eliminating all coal from our generation fleet by 2040 and achieving net-zero greenhouse gas emissions from our utility operations by 2050.

We work tirelessly to modernize our utility grid for the benefit of future generations across Wisconsin and Iowa. We build smarter energy infrastructure to deliver cleaner, more reliable, more resilient energy to customers and maintain affordable rates. A smarter grid means customers get more control, choice and flexibility.

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