Monona Grove School District shows off solar array it says is largest on K-12 school in Wisconsin

May 21, 2022 - The array covers roughly two-thirds of the roof of Monona Grove High School. When fully operational, the district expects it will generate about half of the school’s electricity.

Peter Sobol, the chair of Monona Grove’s Ad Hoc Sustainability Committee, said the district applied for and received a $300,000 grant from the state’s Public Service Commission to help cover some of the project’s costs. The district borrowed roughly $1 million to pay for the rest of the array.

The project, he said, will more than pay for itself over its 30-year life. It will be cash flow positive in the first year, and over 30 years, the district expects it will save them $1.5 million in energy costs...