Kenosha Water Utility

Kenosha, WI

Incentive: $500,000

Utility: We Energies

Program: Renewable Energy - Biogas



The Kenosha Water Utility (KWU) has been in operation since 1895, and currently provides water and sewer service to nearly 110,000 people in the greater Kenosha metropolitan area of Southeastern Wisconsin.

Faced with rising landfill disposal fees and energy costs, the Kenosha Water Utility (KWU) recently redesigned their solids management process to address these growing concerns. Multiple changes were made to the process in a pointed effort to reduce their reliance on purchased energy and their costs associated with landfilling the biosolids.

Kenosha recognized that they could expand on their existing biogas utilization by installing the PONDUS thermo-chemical hydrolysis sludge pretreatment system; the first use of such a technology in North America. They partnered with local Kenosha firm, Centrisys, to help design and implement the biogas recovery project. Additionally, KWU submitted the resulting design concept to the Focus on Energy Renewable Energy Competitive Incentive Program (RECIP), and was awarded a $500,000 grant to help with the implementation of this project.

This solids management project was the largest energy project undertaken by the utility to date, and gave the utility the chance to utilize truly innovative technology to help them meet their goals.

The new system was installed and operational in October 2016.  Optimization of the new biosolids management process is ongoing, and Kenosha’s initial projections indicate that they will save roughly $635,000 per year due to the reduction in purchased electricity and biosolids management costs. Focus on Energy estimates that the energy savings alone results in savings of more than $500,000 a year over the lifetime of the project.

Click here to read more about project specifics.